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Directional drilling
HDD machine design has undergone significant improvements to meet market demand
DTH hammers & bits
How to choose the right down-the-hole tools for your drilling requirements
Underground drilling
Large-capacity raisebore rigs find work in South African and Australian underground mines
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July / August 2015
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CONTENTS
1
Drillers’ point of view
O
ne comment I often hear when talking to drillers or other members of the industry at events or during interviews is that they perceive themselves as part of a close-knit community. While there is no one unified drilling sector, as it is divided into multiple applications, people still feel a certain connection, even when scattered around the world. As in all industries, certain projects and proprietary technologies cannot be discussed, but overall, drillers are happy to talk about their work and experiences with each other. This brings to me to my main point: as a magazine, we don’t want to be just the voice of the ‘industry’, we want to be the voice of the drillers, engineers, miners, geologists etc. themselves. GeoDrilling International has previously published columns by industry veterans and experts, and this is a tradition “We don’t want to be we would like to revive. just the voice of the This is a call-to-action to all our regular and occasional readers, no matter your area of speciality: please get in touch with us if you would like to share your stories, tips, opinions, concerns and industry insight – or perhaps an impressive snapshot from a job site.
‘industry’, we want to be the voice of the drillers, engineers, miners, geologists etc. themselves”
We would love to hear from you and about your work, and so would the rest of our readers. You can message me directly with your ideas at the email address below. And keep your eyes peeled for these new, or reintroduced, segments of the magazine. Another way in which we would like to hear from you is through our ongoing reader survey. If you have not already filled out the short questionnaire, which takes less than five minutes to complete, you can do so through our website. We would like to know which of our features worked for you, which did not, what you would like to see more (or less) of, and in what direction you would like to see us go in general. The survey is open until August 19, 2015, and I will be sharing some of the results with you in my next comment. If you miss the survey deadline, there is no need to worry – you can drop me an email with your thoughts any time. Take part in the GeoDrilling International Reader Survey 2015 by visiting our website and clicking on the banner at the top of the page: www.geodrillinginternational.com. NIA KAJASTIE, EDITOR nia.kajastie@aspermontmedia.com For news and updates, follow me on Twitter: @GDI_Ed_Nia
News
2
Features Special report: CDM Regulations Directional drilling DTH hammers & bits Underground drilling Italy Special report: Agiva Contacts
7 10 17 26 34 38 39
Classified advertising
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Next month Well pumps, screens and casing Core drilling and borehole logging Health and safety Australasia
COVER The new Massenza MI3 raises the bar in performance and specification for small drilling rigs. Designed specifically to weigh less than 2,700kg so that it can be transported by trailer, this rig packs a punch powered by a class-leading 70HP EC Stage 3 engine, over 3-ton pull-back in the 1.9m-stroke mast and double clamps with 175mm passage. The MI3 may be compact but it has been built to Massenza’s high quality standards and big rig design features. Each rig is purposebuilt to the customer’s demands and it is available with a number of rotary head/rotary percussive head options for site investigation and dynamic sampling. www.massenzarigs.it
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2
NEWS
Orica, PhosAgro to work together Russian fertiliser producer PhosAgro and explosives and blasting systems provider Orica have signed a 10-year contract for drilling and blasting works in the open-cut sites of PhosAgro subsidiary Apatit, and the supply of emulsion explosives for underground mining. This will mark the third phase of co-operation between Orica and Apatit. Orica will conduct the drilling with its own rigs on the Vostochniy mine site, with similar plans for the Tsentralniy pit of the Rasvumchorr site from January 2016. Orica EMEA zone executive Richard Brown said: “The close collaboration between Orica and PhosAgro has made it possible to extend our agreements in drilling and blasting in the Apatit open-cut sites.”
BSP creates monster hammer for Venezuelan bridge project UK-based BSP International Foundations (BSP) has built the CGL590, the largest model in its piling-hammer range, especially for Brazilian contractor Odebrecht to be used to drive the 60m-long, 1.8m-diameter piles required for the foundations of a new bridge over Maracaibo Lake in Venezuela. The GL590, built at the company’s facility at Great Blakenham, near Ipswich, England, weighs in at 82t, with a 40t drop weight and pile sleeve, and is capable of driving concrete and steel piles up to 2m in diameter. However, fitted with special attachments, larger-diameter piles can also be driven. When freely suspended, it stands 12m high and has a maximum impact energy of 584kNm. The hammer takes advantage of BSP’s hydraulic cylinder design. The ‘through
Fugro wins Fehmarnbelt geotechnical contract Fugro has been awarded the 2015 geotechnical verification investigations programme by Femern, owner of the Fehmarnbelt Fixed Link project. The planned 18km-long immersed tunnel will connect Denmark and Germany as part of the Scandinavian-Mediterranean corridor, one of the EU’s priority network corridors. Detailed knowledge of the subsurface soil properties is key for the design and execution of this challenging tunnel construction, for which the world’s
largest construction and marine dredging companies are among the bidders. Fugro will deploy two jack-up rigs in the Fehmarnbelt seaway between the Danish island of Lolland and Fehmarn on Germany’s Baltic coast. Fugro’s experienced geotechnical team will perform downhole cone penetration testing, drilling and geotechnical laboratory work in water depths between 3m and 10m. The campaign follows previous geotechnical studies carried out by the company in 2009 and 2010.
BSP produced its largest piling hammer for the Nigale Bridge project
rod recirculation’ design promotes a running pressure of 290bar and reduces the hydraulic oil supply to 1,200L/m. A maximum blow rate of 32 blows per minute can be achieved at 1.5m maximum stroke, but when reduced to a 200mm stroke in excess of 75 blows per minute can be recorded, the company states. Before the piling at Maracaibo Lake, a multipurpose drilling rig working from a jack-up platform was employed to carry out offshore and nearshore site investigations. Boreholes were drilled to a maximum
depth of 70m through soft to stiff clays overlaying mudstones. Originally, Odebrecht rented the CGL590, but after witnessing its performance, the company decided to purchase the hammer together with a BSP power pack. Odebrecht’s subsidiary in Venezuela began preliminary construction work for the Nigale Bridge in October 2012. When completed in 2018, it will consist of four vehicle lanes and two rail lines and, at 12.4km, will be the longest road and railway bridge in Latin America.
Bagatelle dam build is in the bag Bauer Spezialtiefbau has finished the construction of a cut-off wall in Mauritius for a new water-reservoir dam. The last panel of the cut-off wall was constructed in May 2015, almost exactly a year after work started for the €35 million (US$38 million) In May, Bauer built the last panel of the cut-off wall for the new Bagatelle dam in Mauritius
Bagatelle dam project. Bauer constructed a 2.4km-long diaphragm cut-off wall (56,781m2) socketed into rock. The soil partially consisted of very hard basalt – about 20,000m2 of moderately weathered basalt had to be penetrated over the entire structure for the new dam. Furthermore, in the central dam area, heavy layers of basalt, up to 28m deep, were removed in order to construct the cut-off wall with the specified depth. Three duty-cycle cranes of types MC 96 and MC 128 were used with a BC 40 trench cutter, as well as two grabs.
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NEWS
3
EQUIPMENT Devico launched the DeviSight Surface earlier this year
Devico sets sights on better alignment Devico has launched the DeviSight Surface, a nonmagnetic GPS compass for surface alignment for directional core drilling and borehole-surveying systems. This portable battery-operated system is designed to perform and record accurate measurements of azimuth (True North), inclination and roll planes at drill sites. According to Devico, the DeviSight Surface is one of the most accurate systems currently available on the market. Using the GPS signal to measure alignment, the instrument provides 0.5º
azimuth accuracy and calculates position within 30cm of latitude and longitude. The final surface positions are stored in a secure format. The system can be used for surface applications such as drill collar and drill head. Its rechargeable battery can run up to 13h on a charge (twice as long as its closest competitor), the company stated. The DeviSight Surface features an on-board management system that connects to any smartphone by Wi-Fi, and the collar azimuth can easily be transferred.
GHH Rand expands its range of compressor airends GHH Rand, a German manufacturer of compressors, recently extended its portfolio of specialised compressor airends with products from its US parent company Ingersoll Rand, now covering a wider range of discharge pressures (4.5 to 36bar) and volume flows (0.3 to 116m3/min). According to the company,
A mobile air compressor for the construction market from GHH Rand
manufacturers of mobile compressor packages in particular will find the extended range of oil-free and oil-cooled airends useful as they utilise screw-compressor airends as the centrepiece of their compressor units. Oil-free and oil-injected screw-compressor airends can be found in almost every industry, including construction, drilling and mining. The compressor specialist offers a wide range of bare compressor airends that are utilised by OEMs, e.g. for mobile and portable compressed air solutions.
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4
NEWS
New drill-repair service for England
Doosan introduces Stage IV range
A new mobile plant, machinery and drilling-rig repair service aims to help civilengineering and building companies reduce their downtime. The mobile repair service has been launched by Nottinghamshire-based Euro Repair. It will see the company’s team of engineers travel to sites across England to fix heavy plant and machinery. Euro Repair managing director Jeremy Moore explained that the idea came in response to customer demand and personal experience.
Doosan Portable Power has launched a new range of large Stage IV-compliant portable compressors, which are all based on the same platform and are the first to feature a Doosan airend. The new platform covers five large Doosan portable compressors, namely the new 9/274, 9/304, 12/254, 17/244 and 21/224 models, offering free air deliveries from 21.5 to 30.0m3/min at operating pressures from 8.6 to 21.0bar. All the new compressors are powered by the Cummins QSL9 T4F six-cylinder diesel engine that meets the
The RD 14S is the first model in a new line of rock drills from Atlas Copco
Atlas Copco’s new rock drill for surface drilling Atlas Copco has launched a new 14kW low-pressure rock drill for surfacedrilling applications. The RD 14S is the first of a new line of rock drills designed for straightforward and reliable operation. The company stated that it is intended for customers whose top priority is to operate a reliable rock drill with consistent performance over time. The new rock drill was created with two main bodies and a single dampening system to minimise the number of moving parts and was
produced to ensure ease of maintenance and operation. David Jonsson, Atlas Copco’s product portfolio manager, said: “We are excited at this opportunity to have a new product with which we can approach a different and somewhat new style of customer. “The RD 14S is intended for customers who prioritise reliability and ease of maintenance rather than peak performance; for smaller operations, where cost is critical, this would be an optimum rock drill of choice.”
The 12/254 compressor is part of Doosan’s new Stage IV range
Stage IV regulations without the need for a DPF. In the new 12/254 compressor, for example, the QSL9 engine provides 247kW of power at a full load speed of 1,800rpm. The 12/254 compressor has a free air delivery of 25m³/min at a discharge pressure of 12bar.
Large portable compressors such as the new 9/274, 9/304, 12/254, 17/244 and 21/224 models are used to provide compressed air for a wide range of drilling and boring machines for quarrying, mining, site investigation, geothermal, mineral exploration and water-well construction work. Doosan recently also sold 100% of the shares in Montabert to Joy Global. Montabert’s products and equipment fit Joy Global’s core business of designing, manufacturing, distributing and servicing mining equipment.
Numa adds lightweight 5gal model to its lubricator line Numa, a designer and manufacturer of down-thehole hammers and bits, has announced the release of a new five-gallon (23L) lubricator. The new lubricator comes in a sturdy steel frame that is both lightweight and strong. It has been designed to have high portability, ease of use and maintenance, Numa said. The lightweight frame
allows contractors plenty of room to replace any of the components. A 2in (51mm) air manifold is a part of this new system, and it provides the contractor with the ability for a quick and easy connection, and has multiple inlets to supply water and/or foam. Weighing in at only 72lb (33kg) without oil, the Numa lubricator is designed for 3in to 6in (76-152mm) hammers. Like other Numa lubricators, it uses a positive displacement pump for consistent, continuous supply of rock-drill oil when the air is turned on.
The new 5gal lubricator from Numa
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ROCKING THE WORLD FOR OVER 25 YEARS 646 Thompson Road • Thompson, CT 06277 • USA Phone: (860) 923-9551 • Fax: (860) 923-2617 numa@numahammers.com • www.numahammers.com Untitled-2.indd 1
25/02/2014 14:52
6
NEWS
Better electro-hydraulic systems Italian manufacturer Hansa-TMP has introduced a new integrated electrohydraulic system for off-shore drilling platforms and on-shore machines. The system allows the application to reach top performances in hazardous areas and meets the latest regulations on fuel and energy saving, the manufacturer said. The system includes stainless-steel rotary couplings with hydraulic ports and electric contacts. This device provides a seal between the stationary supply passage and the rotating part to permit the flow of the fluid or electricity into and out of the rotating part. The working
temperature range is -30°C to +50°C. The proportional stainless-steel valves are certified explosion-proof and have corrosion protection, and userfriendly software is embedded in the electronic control unit to provide precise control on the movements of the rigs. Featured on Hansa-TMP’s new system are loadsensing and/or torquelimiting variable-displacement open-loop axial piston pumps; highpressure split-flow fixeddisplacement open-loop axial piston pumps for special fluids; and stainlesssteel single- and doubleacting hand pumps.
“First on-site”
Geomachine marks 30 years in business The Nordic geotechnical investigation rig manufacturer Geomachine recently marked its 30th anniversary with a celebration at the company’s factory in Tuusula, Finland. Over 100 guests, including well-drilling, geotechnical and geological experts from the Nordic region, Estonia, Poland and Russia, witnessed a review of the company’s history over three decades. The guests also saw the launch of Geomachine’s new CAN-bus geotechnical rig GM85GT, and the GM-HEE2 data logger, with online data transfer from the work site to the office through the cloud service, which reportedly received praise from the visitors for its ease
Geomachine’s new GM-HEE2 data logger
of use and clear graphics. Six Geomachine rigs are now being delivered to customers in the Nordics and Russia.
PEOPLE
Macmahon appoints new CEO
Geomachine Oy has 30 years’ experience in investigation and exploration drill rigs for demanding environments.
www.geomachine.fi 02-04,05GDI1507.indd 6
Australian mining-services company Macmahon has announced the appointment of Sybrandt van Dyk as chief executive and managing director, effective immediately. Van Dyk has been with Macmahon since April 2014, when he was appointed chief financial officer. Before joining the company, he was at the WesTrac Group, where he held a number of senior operational roles. Macmahon’s chairman, Jim Walker, said van Dyk’s strong operational and commercial background, combined with his knowledge of the industry, depth of experience in marketing, sales and product development, made
him the ideal candidate for the role. “Since joining Macmahon, Sybrandt has been instrumental in reshaping the company into the leaner, more dynamic and resilient business that it is today,” Walker said. “Over the past 12 months Sybrandt has successfully implemented a major cost-reduction programme, spearheaded lengthy negotiations with our financiers, managed the disposal of excess equipment and successfully executed the sale of our Mongolian business – all of which has significantly enhanced Macmahon’s financial position.”
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SPECIAL REPORT
7
CDM Regulations: contractors’ duties The new UK Construction Design and Management (CDM) Regulations came into force in April. Tom Phillips of RPA Safety Services and Julian Lovell, chair of the Association of Geotechnical and Geoenvironmental Specialists’ safety working group, explore the potential impacts on the geotechnical industry
T
he CDM Regulations 2015, surveys, in fact, according to introduced on April 6, have CDM, site surveys are restricted to non-intrusive works, such as increased emphasis on topographic surveys, site walkoclient responsibilities. This raises vers, gas monitoring and visual a number of issues for the geoexamination of structures. technical industry, particularly as So, if a survey involves penetraclients of ground-investigation tive works, even with hand tools, work are rarely involved directly it is classed as ‘construction’ and with the geotechnical aspect of the regulations apply. a project. The UK’s Health and Safety A key issue is what constitutes Executive (HSE) is keen to stress ‘construction’ under the regulations. While many clients consider that the regulations should be BOODEinvestigations AD NOVEMBER 21/10/2014 Page 1 to the applied 12:21 proportionally ground as 14_proof site
According to the CDM Regulations, if a survey involves penetrative works, it is classed as ‘construction’
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SPECIAL REPORT
The contractor should ensure that the site is secure, ensure suitable welfare arrangements are in place and comply fully with the regulations
level of risk involved, however. For example, a shallow handdug trial pit will require minimal paperwork in terms of a construction phase plan as the risk is low. However, the duty holder will still need to consider risks, including underground services, contaminants, ground stability and falls into the excavation. It must also plan how work will be carried out, kept safe and made good. In many cases, simple repetitive work will be based on standard company procedures but these will, of course, have to be tailored for individual sites and the prevailing conditions.
CLIENT AWARENESS
“When a consultant engages a drilling contractor and determines the nature and type of works or supplies supervision, they are both deemed contractors”
It has been reported that some consultants and contractors are finding it difficult to get clients to accept and fulfil their duties under Regulation 15 (1), which states: “A contractor must not carry out construction work in relation to a project, unless satisfied that the client is aware of the duties owed by the client under these regulations.” However, in many cases, geotechnical firms are not employed directly by the client and have no contact with them at all. Contractors have expressed concern that this will prevent them from starting work and are worried they may be held liable for a client’s failure to make the correct appointments and satisfy their duties.
Presentation John Underwood, an inspector from the Health and Safety Executive’s construction-sector safety team, outlined the changes to CDM Regulations affecting the geotechnical industry at this year’s Geotechnica conference and exhibition held in July at the Warwickshire Exhibition Centre, Royal Leamington Spa, UK. For more information and to download presentations, visit www. geotechnica.co.uk.
In fact, the regulations do not prevent geotechnical contractors working, even if the client has not fully complied with its duties, as long as the contractor ensures it makes the client aware of its duties under CDM. This can be done as part of the tendering process, or following appointment.
CONSTRUCTION PHASE PLAN It should be remembered that the contractor still needs to make arrangements to manage the site for the duration of its attendance (appropriate to the role it is carrying out), despite a lack of formal appointment. The contractor should therefore ensure that the site is secure, ensure suitable welfare arrangements are in place and comply fully with its Part 4 duties under the regulations. It should also prepare (or contribute to an existing) construction phase plan, which will cover how it intends to arrange the work and how it will manage foreseeable hazards both on and adjacent to the site. The construction phase plan should also identify any addi-
tional information the contractor needs before starting work. If the client is not able to provide that information (for example, services location, an intrusive asbestos survey, ordnance assessment and so on), then the contractor should arrange for this work to be carried out separately. Where the contractor is the main contractor on all or part of the site, it should manage all work in the area for which it is responsible, unless a principal contractor is appointed and active. Additionally, where the contractor carries out any design, for example temporary works, it should ensure that it follows the principle of ‘avoid the hazard’ or uses suitable control measures to minimise risk.
CONTRACTOR DUTIES Concerns have also been raised about projects where a geotechnical contractor is appointed as principal contractor (PC) or principal designer (PD) in the early stages of a ground investigation (or it takes up those duties by default). Without clear
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SPECIAL REPORT
arrangements to the contrary, there is every danger that a geotechnical contractor could be assumed to be responsible for subsequent phases of the work. It is therefore important that when a geotechnical contractor is appointed, or by default is expected to carry out the duties of the PC and/or PD (on projects where there is likely to be more than one contractor), it clearly limits its role to its phase of works. This will include limiting the construction phase plan to the geotechnical phase. Where the contract is unclear on this issue, the contractor should confirm the extent of its role to the client in writing. Consultants can also be considered as contractors under the new CDM Regulations, which define a contractor as “any person (including a non-domestic client) who, in the course or furtherance of a business, carries
out, manages or controls construction work”. The duty-holder ‘contractor’ is the organisation that determines the manner in which the work is being done (this may also include a design element, so an organisation may hold dual roles), provides supervision or engages other contractors. This can include consultancies in many instances. For example, when a consultant engages a drilling contractor and determines the nature and type of works or supplies supervision, they are both deemed to be contractors and it is the consultancy’s responsibility to ensure that the client is aware of its duties. The client would then need to make the necessary appointments. Where a domestic client is involved, the consultancy (as a contractor) may be deemed to be PC and PD by default, even if the client fails to make formal
VIBRO-ROTARY HEADS
appointments. Where a commercial client is involved, any failure to appoint will result in the client carrying the role of principal designer and/or principal contractor. It is clear that the 2015 CDM Regulations include a number of changes affecting the geotechnical industry. Contractors and consultants must ensure that they are fully aware of what is deemed as ‘construction’ and clarify their roles and responsibilities with clients before starting work.
9
Julian Lovell
Tom Phillips
Further reading
•
•
HSE Publication L153 – Managing health and safety in construction – Construction (Design and Management) Regulations 2015 www.hse.gov.uk/pubns/books/l153.htm CITB Guidance on CDM www.citb.co.uk/health-safety-and-othertopics/health-safety/construction-designand-management-regulations/cdm-guidancedocuments
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DIRECTIONAL DRILLING
Horizontal development Horizontal directional drilling (HDD) is a relatively new underground construction technique, but with demand for more infrastructure and energy sources increasing in developing and developed parts of the world, it has evolved rapidly. GDI reports on the latest in HDD technology Above: Grundodrill 18 ACS mastering challenging conditions in the Gastein ravine, Austria (see box on p16); Ditch Witch JT60 demonstrating its versatility; the new Herrenknecht HK250C-SDD rig can handle drilling angles of 13º to 45º to the horizontal
T
he trenchless method of horizontal directional drilling (HDD) is used to install subsurface pipelines, cables and conduits under waterways, roadways, densely built areas, difficult terrain or other surface obstacles. The technology was originally developed in the US, with its roots going back to the 1960s/70s and Martin Cherrington widely recognised as an industry pioneer. Today it is known as a commonplace installation method in underground construction, and since the late 1980s, the technology and equipment involved have developed significantly. At the centre of the HDD process is the directional drilling rig, which is used from the surface to bore a horizontal pilot hole in a shallow arc along a prescribed path to an exit point, and then to enlarge the hole by pulling a reamer back through it. Lastly, the pipeline is pulled through the finished borehole. Today the evolution of HDD rigs is being propelled forward by increasing demand in the marketplace, particularly with regard to improved infrastructure that has kept utility contractors, fleet managers and manufacturers busy over the past few years. Municipalities and similar customers are increasingly demanding that electrical wires,
telecommunications lines and other utilities go underground for aesthetic and practical reasons. “Whether we’re talking about advanced technology in energy sources such as natural gas, wind and solar, or connectivity technology such as telecommunications, DSL and fibre-optic installations, directional drills have become an extremely popular solution in connecting infrastructure, and this demand has dictated a need to provide premium HDD solutions,” explains Mike Brugh, part of the international siteworks business at the Toro Company. “Traditionally, trenching has been less expensive, but with other factors, including road closures and geographic features, impacting the overall functioning of the locale, HDD becomes more cost-effective in the long run,” adds Damian McCabe, business-development manager in the trenchless-equipment division at McCloskey International.
RECENT REQUIREMENTS As the industry landscape has become more competitive, HDD equipment has undergone significant improvements as a result of practicality and necessity to suit contractor needs. HDD contractors are demanding flexible HDD systems that allow for a maximum range of
applications at high speed yet low operational cost, guaranteeing a high return on investment. In addition, very few utility companies have the ability to keep multiple units of multiple sizes of rigs in their inventory, so manufacturers are now developing rigs that can perform crossclass functions. “Contractors aren’t just staying loyal to brands that they have used for decades. Instead, we are seeing contractors and fleet managers do more research on the features and benefits of HDD equipment to make sure they’re using the best solution for each job. In short, higher levels of productivity are being expected from contractors, who are looking at their equipment selections to help make up the difference,” says Brugh. Customer needs have become more specific and refined. The market has changed, and the aspects customers care about now were often not of crucial concern to them ten years ago. “One example is sound,” says Jon Kuyers, underground global product manager at Vermeer. “Contractors want quieter drills for the comfort of their crews and the people in the area around a job site. “Another example is the technology found on drills. Previously, technology was
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DIRECTIONAL DRILLING
sometimes seen as being synonymous with complexity, but actually it has allowed us to simplify many things.” Contractors are always searching for ways to improve the efficiency of their equipment, and job sites have increasingly become residential zones. “Underground construction companies are designing powerful drills that decrease surface disturbances by riding on turf-friendly tracks or utilising shorter drills in order to set up in tight spaces: systems that can help maximise the life of pipe joints and increase productivity,” says Seth Matthesen, senior HDD product manager for Ditch Witch. HDD technology has also seen various developments regarding automation, ecological machine design and drilling tools in recent years. And rigs that employ the latest wireless technology allow for enhanced communications and diagnostics to and from the machine.
10-12,14-16_Directional_GDI1507.indd 11
“Modern HDD rigs provide several features easing and speeding up the drilling process, such as automatic drill-rod exchange or even complex bore automatics that relieve the operator from routine functions and shorten drilling times. High-capacity bentonite HP pumps on board the drill rig supplying great drilling fluid volumes accelerate the drilling process as well,” says TractoTechnik’s Dr Hans Joachim Bayer. According to Matthesen, the largest change for HDD over the past five to seven years has been in accommodating Tier 4 engine requirements. This not only
changes the overall size and weight of the unit, but in many cases the cooling and hydraulic packages. “CAN systems and distributed computing are new innovations that were not available even ten years ago. These innovations give the operator more feedback from the drill unit, which in turn can increase production and operator comfort,” he adds. Utility contractors are looking for HDD rigs that have highly intuitive controls. Operators of varied skill levels will potentially be using directional drills on site, and contractors can help mitigate any risk by selecting equipment that is easy to operate and understand. Contractors also want to keep their crews safe, so a number of features are being integrated in premium machines to help increase safety on the job site, including, for example, stabilisers and an exit-side lockout system.
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The McCloskey D15 is used to bore under a busy private road in a car park to run a water pipe to a pump house
“Today the evolution of HDD rigs is propelled forward by increasing demand in the marketplace, particularly with regards to improved infrastruc ture”
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FEATURE NAME DIRECTIONAL DRILLING
Latest designs Here selected key HDD rig manufacturers introduce their main products and newest models. Using the new Herrenknecht HDD Full Face Hole Opener, pilot holes can be enlarged to the final diameter in one single step
DITCH WITCH Contractors increasingly find themselves working on utility projects, such as fibre-optic installation. These projects require efficient, powerful HDD rigs that meet the specific challenges of shallow installation projects. Designed to ensure the most efficient utility installation possible, according to Ditch Witch, its JT9 is the most powerful HDD rig in its class. The rig offers 9,000lb (40kN) of pullback force and includes many of the advanced features of larger drilling rigs, such as a heavy-duty anchor system, open-top vice wrenches and an integrated remote display. The Ditch Witch JT60 and JT60 All Terrain directional drills are efficient and productive in larger utility projects, matching 60,000lb (267kN) of thrust with a durable,
customer-driven design. Unique to the JT60 is the patented, two-pipe all-terrain drilling system that provides more power to the bit than any other rock-drilling system in its class, improving productivity in the widest range of ground formations, Ditch Witch claims. “We have seen a steady demand for each Ditch Witch All Terrain rig,” Matthesen adds.
HERRENKNECHT Commenting on HDD rig evolution, Herrenknecht’s senior product manager for pipelines, Michael Lubberger, says: “On one hand, rigs have got equipped with more powerful and efficient rotary drives, more safety features and more features for the acquisition of data. On the other hand, we reduced the fuel consumption and the weight of the rigs and
designed them to be robust and modular for job sites that are difficult to access. For example, modular rigs with single-piece weights under 10t for helicopter transport into the jungle.” Herrenknecht’s latest innovations include the new Full Face Hole Opener, with which pilot holes can be enlarged in a single step. If a Down Hole Jet Pump is installed directly behind it, the borehole can be cleaned during the same step. “Advancements and innovations in HDD downhole tooling such as these will make the use of HDD rigs with higher torques more efficient as the capability of the drill pipes is also increasing steadily,” says Lubberger. As communication systems become more advanced, it will be possible to access and control the rig, including data, camera and communication systems, from anywhere in the world. The advantages for service and trouble-shooting are evident. Furthermore, Herrenknecht has developed SDD (slant directional drilling) rigs for steeper drilling angles based on HDD technology.
“HDD contractors are demanding flexible HDD systems that allow for a maximum range of applications at MCCLOSKEY INTERNATIONAL high speed yet low Based on customer feedback operational cost” following its introduction in 2014,
the McCloskey D15 has undergone a number of key design enhancements and has evolved into its second generation, better able to accommodate a diversity of climates and conditions. At the front of the drill, the augers have been placed in a more vertical orientation for enhanced transfer of power. At July / August 2015 10-12,14-16_Directional_GDI1507.indd 12
23/07/2015 10:20
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21/07/2015 12:32
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DIRECTIONAL DRILLING
A Toro DD2024 horizontal directional drill
“Powerful thrust and pullback, combined with a relatively small machine footprint, really pay dividends for utility contractors across the globe”
the rear, two foot plates add stability, anchoring the rig to the ground in uneven terrain. A transfer bridge on the D15 houses the hydraulics away from the drilling area and features a manual control override should it be required. The operator’s station also underwent significant changes, with enhanced sightlines for the control panel, joysticks angled for comfort and the placement of the grease bucket on the mast for easier access. According to the company, safety was a key factor in the redesign, and the D15 has three E-Stop buttons. The 25gpm (1.58L/s) mud pump features one of the largest flow rates for a drill in its size category, and a large fuel tank allows for all-day projects without refuelling. An oversized oil cooler allows for better operation in high ambient conditions. Understanding that particularly in urban centres a drill with a small footprint is not only preferred, but necessary, the D15 also has
reconfigured augers to allow greater manoeuvrability in small spaces. The operator’s station has been reconfigured.
THE TORO COMPANY Powerful thrust and pullback, combined with a relatively small machine footprint, really pay dividends for utility contractors across the globe. Contractors are also looking for their HDD rigs to be increasingly versatile. Toro’s DD2024 is designed for short-range applications, but is powerful and versatile enough for mid-range projects as well, the company claims. Additionally, the Toro DD4045 is a mid-range drill, but can be used on both shortrange and long-range projects. Although Toro has been in business for over a century, underground directional drill equipment is still a relatively new product category for it. Operators of Toro HDD equipment appreciate the flexibility to choose either single- or dual-joystick operation,
the ability to use cruise control while back-reaming and the ability to monitor all machine functions from the colour LCD display. The two Toro HDD rigs are focused on productivity, with a two-speed floating carriage to decrease cycle time. The DD2024 drill combines a compact design with 20,000lb (89kN) of pullback force and 2,400ft-lb (3,254Nm) of rotary torque. The DD4045 packs 40,000lb (178kN) of thrust and pullback, and 4,500ft-lb (6,101Nm) of rotary torque within a small footprint (85in wide). Drilling-fluid flow up to 70gpm (4.42L/s) and tool rotation speed of 225pm give the DD4045 the versatility to perform a wide range of installations.
INSPIRING TRENCHLESS TECHNOLOGIES
INTELLIGENT AND POWERFUL GRUNDODRILL - Fluid-assisted HDD rigs low-maintenance and durable construction universally applicable - also for bores through rock 4-25 t thrust and pull back for installing new pipes up to Ø 700 mm. Bores up to 22 m depth and 600 m length
© TRACTO-TECHNIK
TRACTO-TECHNIK GmbH & Co. KG · 57368 Lennestadt · Germany · www.TRACTO-TECHNIK.com
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DIRECTIONAL DRILLING
Both rigs utilise a quad rackand-pinion carriage design that spreads carriage load evenly and ensures smooth and efficient travel. The gear track is welded to both sides of the thrust frame for added reliability. The track is propelled by forward-mounted track-drive motors with planetary gears, which deliver greater traction in all ground conditions.
TRACTO-TECHNIK The latest HDD rig models provide maximum power yet require comparably little space for both transportation and drilling. A rack-and-pinion drive allows for precise control and adjustment of the thrust and pullback forces. Engines run with eco-friendly bio-diesel at low consumption, and noise and exhaust fumes meet the latest EU standards. Major progress has been made in the development of drilling tools that enable versatile HDD applications in the most complex soils, including hard rock.
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Packing a punch Daley Directional Drilling (DDD) from Camden in New South Wales, Australia, recently took delivery of its Toro DD4045 directional drill. The family-operated business was established in 1999 to provide a trenchless utility laying solution. Working in difficult access and restricted space is a speciality field for DDD and, according to the company, there is no job that it considers too large or too small. DDD has plenty of experience with HDD drills, but had never used a Toro until recently. Michael Daley, the company director, explains that they were previously using Astec directional drills and had always been very happy with the machines’ power and performance. In 2012, Toro acquired the popular Astec Underground product line, and DDD later bought its first Toro drill. “The DD4045 is being used for all types of directional drilling work in different applications involving water, power, gas and communication,” explains Daley. “We really like the power that the
DD4045 offers, especially considering the size of the unit itself.” Daley’s unit is equipped with the optional enclosed operator platform, which can help reduce operator fatigue and increase productivity in less-than-ideal conditions. “Having the cabin on this HDD rig helps keep our operators safe and comfortable,” Daley claims. He also mentions the machine’s versatility and features that accommodate operators of varying skill levels, in particular the option to switch from single- to dual-joystick operation depending on the application and boring stage.
DDD recently took delivery of a Toro DD4045 directional drill
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FEATURE NAME DIRECTIONAL DRILLING
The new Vermeer D23x30 S3 Navigator horizontal directional drill
Tracto-Technik’s Rockbreaker steering head with roller chisel for rock bores
Equipped with special rock-drilling tools, modern HDD rigs can accomplish successful bores in very rough and rigid topographic and geologic conditions. “A perfect example is the Grundodrill 18 ACS (All Condition System), which works efficiently in alternating soils as well as in hard rock at distinctively reduced operating costs and construction times compared with similar drilling rigs,” says Bayer. The 18 ACS works with a twin-tube drill rod consisting of an inner tube with plug-in connector and outer tube with Elicon thread. For bores in rock, the Rockbreaker steering head with roller chisel is applied. When drilling, the outer tube steers the Rockbreaker and the inner tube, which is connected to the roller chisel, transfers a torque of 2,500Nm up to 350rpm directly onto the chisel. Only a small quantity of bentonite is required, reducing the costs for purchase, treatment and disposal.
Due to the 126kW diesel engine consuming less than 10L/h and a thrust and pullback force of 180kN, standard fluid-assisted bores up to 400m long and rock bores up to 300m with a diameter of 20in can be established economically, the company says. Having a working width of 2.3m and an axis-centre distance between drilling axis and obstacle of only 1m, the Grundodrill 18 ACS is also suitable for application in limited spaces.
VERMEER “Today, Vermeer horizontal directional drills are a lot more efficient and powerful – particularly in terms of thrust, pullback,
MLS
SURVEY AND CABLE LOCATORS Prevent Injury and Damage LOCATE before YOU Dig
“Customers kept wanting to throttle up the D23x30 S3; they didn’t think it was running because of how quiet it is”
rotational torque and horsepower – in the same or smaller footprint than in the past,” explains Kuyers. “Improvements in technology have also enhanced the capabilities and efficiency of drills by reducing cycle times and improving speeds. Also, improving and standardising controls and lowering noise levels have enhanced operator comfort.” The D23x30 S3 Navigator HDD was released this summer and will be followed by the D24x40 S3 Navigator and the D40x55 S3 Navigator. Vermeer’s S3 generation of drills offers enhanced speed, simplicity and sound. According to Vermeer, its midsize rigs continue to be very popular with contractors due to the flexibility to install many product types of various sizes and in a wide range of soil conditions, whether a crew is pulling fibre cable on a 600ft (182.3m) shot or pulling a 12in (30.5cm) steel pipe. “With our recent product launches, we’ve had a lot of positive feedback from customers. For example, with the D23x30 S3, we’ve heard people comment on how quiet it is and how comfortable their operators are in it,” says Kuyers. “At the annual Vermeer Customer Conference in June, customers kept wanting to throttle up the D23x30 S3; they didn’t think it was running because of how quiet it is.”
Damage control
MANS Location Services have a range of cable avoidance tools, laser and hand tools. Reconditioned locators are available along with laser survey tools and accessories for location, detection and surveying.
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Tracto-Technik’s Grundodrill 18 ACS proved its rock-drilling capabilities when a rockslide with a volume of approximately 1,000m3 occurred in the Gastein ravine near Salzburg, Austria, hitting a roadway and ripping off the downhill support wall to the Gastein mountain river. A gas pipeline got damaged and was temporarily redirected above ground. Before winter, a new gas pipeline had to be installed by means of a trenchless rock bore. The job site included quartz enclosures of 40% (60150MPa). As these quartzous enclosures are very abrasive, extreme wear of the boring tools had to be expected. A further difficulty was the bore depth of 47m, which complicated detection of the cable-guided bore. Although space was extremely limited, the Grundodrill 18 ACS achieved this complex pipeline installation successfully.
MANS Location Services Ltd. Unit C Beversbrook Centre, Redman Road, Calne, Wiltshire, SN11 9PR, United Kingdom
July / August 2015 10-12,14-16_Directional_GDI1507.indd 16
23/07/2015 12:02
DTH HAMMERS & BITS
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The right hammer for the job Introduced to the industry over 60 years ago, down-the-hole (DTH) hammers have proven themselves as the drilling tool of choice for a wide range of ground conditions. GeoDrilling International asked manufacturers of DTH tools how they measure against other methods and how to choose the right hammer for the job at hand
D
rillers are always aiming to drill faster and deeper; patently, this was also the motivation behind the development of the down-the-hole (DTH) drilling method. According to the DTH concept, a drilling hammer, attached to the bottom of the rotating drill string, continuously strikes into rock. Inside the hammer, the airpowered piston strikes the drill bit directly, which means that the impact energy is transferred more efficiently, allowing for deeper and faster drilling. When the hammer shatters the rock surface, the air clears the debris by blowing away the small fragments. It is like a compact, spinning jackhammer that can fit inside a borehole. “One of the key issues drillers faced with other drilling techniques was that most of the blow energy was lost as it was transmitted down the drill string,” explains Marc Thompson, group commercial manager for Halco. “The evolution of DTH drilling provided an innovative solution by allowing for the blow energy to be delivered directly to the ‘business end’ of the drill string. One of the key advantages of DTH drilling is that you can sustain the blow energy as the hammer drills to deeper and deeper levels, while at the same time providing exceptionally straight holes.”
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Geothermal drilling with Halco DTH equipment at a school field in Kuopio, Finland, in 2015
Larry Broseh, president of Drill King International, comments: “The time and cost-per-foot savings from the method’s increased penetration rate have contributed to DTH hammers’ popularity over the years. Moreover, DTH drilling offered for the first time a truly straight, accurately positioned and clean borehole, which could be drilled to increasing depths without loss of performance.” When the technology was first introduced, DTH hammers were more suitable for hard rock or consolidated ground. “As a rule, hard-rock formations are ideal for DTH hammers to outperform other drilling methods. Specifically, granite, quartz, dense limestone and basalt, and all non-clay formations in general are conducive
to DTH hammer drilling. Clay formations are not a consideration as a DTH hammer will ‘bury’ itself and be very hard to retrieve,” Broseh adds.
INCREASINGLY VERSATILE Today, DTH hammers are known to be versatile and suitable across a broad range of ground conditions – when in the right hands. “The latest technology in DTH hammers makes them practical in a wide range of softer or medium ground conditions with little to no deviation,” confirms Carlos Bravo, global product manager for hard-rock tooling at Boart Longyear. Consequently, it is now a commonly used method in mineral exploration, blasthole, water well, geotechnical, construction, geothermal and
“As a rule, hard-rock formations are ideal for DTH hammers to outperform other drilling methods”
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18 DTH HAMMERS & BITS
oil-and-gas drilling, as well as underground mining applications, such as rock bolting, cable anchoring, raises and shafts. In 1988, Swedish company Wassara came up with its water-powered DTH technology, optimal for long, straight holes. “There is not any newer DTH drilling technology available on the market today,” says communications manager Kent Boström. “As it is benign to the formation being penetrated, it is also suitable in sensitive environments such as close to buildings or infrastructure and in dams during rehabilitation projects.”
“The evolution of DTH drilling provided an innovative solution by allowing for the COMPARISON blow energy to Rotary drilling with tricone bits be delivered is known to offer high rotational speeds and thrust, and directly to the heavy drill collars can be added ‘business end’ of for extra weight to increase the the drill string” force to the bit. Rotary rigs are
www.wassara.com
larger, self-contained and hydraulically powered with sufficient pullback to deliver the force on the drill bit. “While rotary rigs can get the job done, they are definitely
Operators can use DTH hammers with any one of Little Beaver’s five models of Lone Star hydraulic drills, including the LS200H+
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DTH HAMMERS & BITS
more expensive per metre to run a larger rig with heavier equipment, requiring more fuel and ancillary equipment, and drilling is slower than using the DTH method,” Bravo says. “Rotary drilling works best for largerdiameter holes in softer rock and more unconsolidated ground, but is typically less effective in harder rock or for projects requiring smaller-diameter holes.” According to Broseh, in medium to hard formations, a tricone bit would drill an average of 15-30ft (4.6-9.1m) per hour, while a hammer bit would drill the same hole at a rate of 65-130ft (19.8-39.6m) per hour. For a tricone to drill effectively, 5,000lb (2,200kg) of weight per inch diameter are required to be pulled down onto the bit. “For instance, a 97/8in (251mm) tricone would need almost 50,000lb (22,000kg) of weight from the mast of the rig to drill at its optimum efficiency. This puts enormous wear and tear on the rotary head of the drill rig and reduces its life substantially,” he says.
“Contrary to the tricone, the DTH percussion-hammer bit with a 97/8in-diameter head size would require only about 5,000lb of total weight to allow its highest productivity. The reasoning behind this is that the bit ‘crushes’ the rock by breaking it up instead of ‘grinding’ it.” Drill operators can use the DTH hammer to complement other drill bits, in order to tackle most
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soil formations. “For instance, a DTH hammer isn’t as effective at drilling through overburden as a mud rotary bit because the DTH hammer has more of a percussive effect, whereas the mud rotary bit cuts through the soft soil formations,” comments Joe Haynes, president of Little Beaver, the company behind Lone Star Drills. “But once the mud rotary bit reaches a large boulder or a
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Jul/Aug 2015 17-20,22,24_DTH_GDI1507.indd 19
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DTH HAMMERS & BITS
New to Boart Longyear’s line of BLH DTH hammers is the BLH5-55RC
“DTH hammer drilling exhibits unique benefits and features over tophammer percussive methods”
The first model in Rockmore International’s T series
hard-rock formation, then operators can change the bit to a DTH hammer for smashing a hole through the obstacle. This is much more effective than trying to cut through it and won’t prematurely wear the rotary bit.” Polycrystalline diamond compact (PDC) bits are effective in shale, particularly when a deep hole is required, as they wear very slowly. “That being said, the PDC still only maintains penetration rates of 25-35ft (7.6-10.7m) per hour in contrast to a hammer’s rate of 120-200ft (36.661m) per hour in shale, making DTH percussion hammers the most resourceful product by far,” Broseh adds. Top-hammer drifter drilling, in turn, uses a high-energy, drill-mast-mounted hammer to drive the drill string and bit into the rock. “DTH hammer drilling exhibits unique benefits and features over top-hammer percussive methods. Because the percussive energy transmission takes place directly at the bit at all times, there is no loss of penetration rates at deeper intervals, as is the case in top-hammer methods,” says Rockmore International executive vice-president Pejman Eghdami. Top-hammer drilling is suitable for short-hole drilling in hard rock, but not as effective or efficient for deep holes or in softer ground formations where larger-diameter holes are required. DTH drilling is also often a preferable method when hole deviation is a major problem as it can provide consistently straighter drilling. “With its high penetration rate, good hole straightness and excellent flushing characteristics, DTH gives high productivity and good hole quality, which are both critical factors in rock-exca-
vation projects,” explains Johan Bergquist, product manager for DTH tools at Sandvik Mining. Bulroc’s Steven Wilds adds: “If maintained and lubricated to manufacturers’ recommendations, then a DTH hammer is good to drill up to 10,000m, with bits in favourable conditions achieving between 500 and 750m drilling.”
RIG AND TOOL SELECTION Every drilling project comes with its own specific challenges. In the current increasingly costconscious climate, three critical points ensure that the optimum combination is achieved: • Choosing the right drill rig; • Sourcing the correct package of drilling consumables; and • Deploying the correct drilling tactics. “With today’s broad range of drilling-rig technology, it is important to fully understand what each option can offer and how they could work for your individual site conditions, otherwise you could be throwing good money away from the start. Drill rigs often represent a critical investment for any company, so making the correct choice is paramount,” says Thompson. DTH hammers can be used with a wide variety of rigs with an adequate air source, but are perhaps best suited to lower-
cost, small-to-medium-sized rigs capable of producing high volume and high pressure. Even smaller, more portable rigs with DTH hammers can achieve drilling efficiency equal to larger (and more expensive) truck rigs. Eghdami explains: “DTH hammers can be used with a very wide variety of drill rigs depending on hole size and depths. Smaller hole size ranges, smaller than 4in (102mm) diameter, can utilise smaller and simpler rigs with standalone compressors. Such applications include geotechnical construction-related drilling as well as smaller blasthole quarry sectors. “Larger hammer diameters exceeding 4in require larger, more sophisticated rigs that often support on-board compressors and have greater pull-down/up weight ratings. Such applications are often associated with the water-well, larger blasthole and oil/gas sectors.” Powering the DTH hammer is one of the biggest factors rig operators need to consider before using it to drill through underlying rock formations. The cylinder inside the DTH hammer needs sufficient air flow to generate the required percussion to effectively bore through the rock. “If you don’t have enough power, the hammer might bounce on the rock, which might prematurely wear drilling equipment. And too much power might cause the cylinder to seize inside the hammer. So operators and project leaders should know the optimal power range for their DTH hammer. “The DTH hammer we offer, for example, can be powered by air compressors with outputs as low as 185cfm (5.2m3/m). And to achieve faster drilling speeds, it can use a more powerful air compressor – as much as 375cfm (10.6m3/min),” says Haynes. “Proper anchoring also plays a large role when considering the DTH hammer. For compact, lightweight drilling equipment,
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DTH Hammers... ...for all your Rock Drilling needs Through technology and innovation, Bulroc has broadened its product offering leading to further success and expansion in the industry. The company’s highly competent workforce is guided by a constructive and forward thinking management team whose core aim is to carry out a service that exceeds all expectations.
Large Diameter Hammers Reverse Circulation Hammers Hyper Hammers HD Shock Absorbers Button Bits Eccentric and Concentric Overburden Drilling Systems Drill Tubes Many DTH Accessories
T: +44 (0)1246 544700
www.bulroc.com Turnoaks Business Park, Burley Close, Chesterfield, Derbyshire, S40 2UB, UK F: +44 (0)1246 544701 E: info@bulroc.com
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DTH HAMMERS & BITS
that your operators and support teams know how to get the most from your equipment will determine whether or not your drilling activities are a success or not,” says Thompson.
Near right: a 34in bit from Drill King awaiting shipment Centre column: Drill King International’s DK Casing Advance System ready to hit the ground
“It’s important to match all DTH drilling tools to the class of drill rig used and the desired hole size and depth”
HAMMER INNOVATION
anchoring stabilises the drilling platform and helps force bits and hammers through soil and rock. “Our LS200H and LS300H series drills require 30in-long anchors for drilling into clay, loamy and sandy soils. If the drill site is on rocky terrain, drillers must find alternative methods for anchoring the drills, such as placing water-filled tanks or barrels packed with rocks onto the unit. This anchoring force is crucial to pushing the DTH hammer, as well as heavy-duty drill bits, through rocky material.” After some modifications, most DTH drill rigs are capable of handling Wassara’s waterpowered DTH hammer. The hammer can also handle almost any formation, including some that air-powered DTH hammers find troublesome, i.e. water-rich formation and dense clay. Once the right drill rig has been chosen, the next step is to ensure it operates at maximum efficiency. To achieve this, the driller needs to identify the best package of consumables for the site and rig. Major advances in drilling-consumables technology have been made over the last 40 years, with the extent of the options continuing to grow. When choosing the DTH equipment, numerous factors need to be taken into account, including hole size, hole deviation, air-compressor capacity, drill pipe used, rock strata, water table, altitude, presence of overburden and clays. It is
naturally also important to consider quality, reliability, performance and cost. “It’s important to match all DTH drilling tools to the class of drill rig used and the desired hole size and depth. The hammer should be selected to match the operating conditions for the compressor, and the hammer size should be selected as close to the intended size of the hole drilled. It’s also important to keep the hammer diameter and bit as close as possible, while still maintaining enough clearance around the hammer for cuttings to pass,” Bergquist elaborates. Boseh adds: “The type and shape of the tungsten-carbide buttons to be installed in the face of the drill bit are chosen depending on the rock formation. Specifically, softer rocks can be drilled with ballistic/parabolicshape buttons, while hard/ abrasive formations require ‘dome-shaped’ inserts in a variety of grades, ranging from standard to diamond-impregnated tungsten carbide. “The face design of the DTH bit is another important consideration for the type of formation drilled. For instance, while concave face design has become the standard for most general drilling conditions, convex and flat-face are preferred in certain very hard rock formations.” One of the most important factors occurs after you have selected your drill rig and consumables package. “Ensuring
According to Boart Longyear, its BLH5 hammer series provides the latest in rock-drilling technology. This means no problematic exhaust tubes (also known as foot valves) on bits, a longer-lasting large shank cross-section, and being one-third lighter than the industry standard. The design of the newest addition to the line (BLH5-55RC) balances the piston and bit weight, which directs more energy into the rock. The valved drive stroke delivers maximum impact, power and efficiency versus fixed piston port designs. And the uniquely heat-treated steel valve technology eliminates the risk of melting that is common with plastic valves. The hammer can also balance the air flow across the bit face for better samples. UK-based Bulroc will soon be launching a completely new range of hammers and overburden systems. The first models will include a deep-hole 4in (102mm) hammer aimed at the geothermal market, a new reverse-circulation (RC) hammer for mineral exploration applications and a flat-face CDS overburden drilling system. Last year, Drill King International released the DK Casing Advance System, which features a simple yet robust design comprising a pilot bit, casing shoe and heavy-duty ring bit. It is a concentric-type overburden drilling system, which allows for the simultaneous advancement of casing as big as 24in (610mm) in diameter, while drilling through fractured rock with a conventional DTH air hammer. Customisation options are available based on the specifics of the drilling project, the actual casing and DTH hammer used, and the ground formation and
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HIGHER STANDARDS ARE BORN. When your business is busting rock 24/7, miles from the civilized world in some of the most extreme field and climatic conditions on earth, there’s no room for mediocrity. Period. Through four generations of being out there with you, we’ve learned a thing or two about reliability, safety and trust. And you can rest assured that nobody is more committed to the development of equipment that continues to raise our industry standards. From RC technology, to automated pipe handling, to intelligent controls and more, Schramm rigs have more power and more advanced features to take your operation to the next level. And with Schramms’ legendary support, we’ll be right there with you around the clock, anywhere on the planet.
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DTH HAMMERS & BITS
Bang-up job for Bulroc hammer The SH1 motorway next to the Ellerslie railway station in Auckland, New Zealand, is currently being upgraded, with a new northbound lane under construction. The additional lane will reduce the distance from the shoulder of the motorway to the North Island Main Trunk (NIMT) rail tracks, and this has necessitated the construction of a TL6 crash barrier between the motorway and the tracks. As part of this process CLL (Contract Landscaping Limited) completed cantilever piles using a Bulroc DTH hammer. The piles provide impact resistance for the crash barrier and therefore required 3.5m embedment into solid basalt. Fulton Hogan hired CLL to drill 60no 800mm-diameter, 3.5m-deep holes into intact basalt for the piles. For the job, CLL acquired a Bulroc 241 DTH hammer from the UK, which requires 5,000cfm to run it. Bulroc claimed the hammer could drill between 4m and 6m of solid rock per hour, and CLL was able to witness it first-hand.
According to New Zealand-based CLL, the Bulroc 241 is among the biggest DTH hammers on the islands
The machine consistently drilled the 800mm-diameter holes at a rate of 4m-5m per hour; the slowest part of the operation was preparing the holes with casings ready for the DTH to start drilling. Fulton Hogan was satisfied as the drilling programme was reduced from an estimated 280 x 12-hour shifts down to around about 25 shifts.
conditions. In this respect, Drill King also recently introduced the DK Lost-Ring-Bit system, which is a lower-cost yet efficient alternative to its conventional DK Casing Advance System. In 2015, the company focused the majority of its engineering efforts on the newest addition to its extensive DTH product line – the WAI water-propelled hammers. It is in the process of introducing the 5in (127mm) and 6in (152mm) WAI hammers with the goal of having the 3in (76mm) and 4in (102mm) launched by the end of the year, too. The WAI hammers were developed in partnership with OCI Division and GDS Geo Drilling Solutions, which handle their technical support and distribution.
“Rockmore International has introduced its T-series DTH hammer line that eliminates the blow tube/foot NEW FEATURES valve in Halco Rock Tools recently the bit” launched a new line of hammers, focused on the water-well and geothermal markets, although it is also a suitable product for anyone who foresees encountering water in their holes. Some of the new features of
Halco’s GP range include a new adjustable choke design, which allows the air flow through the hammer to be fine-tuned as necessary, as well as its enhanced non-ported piston design. Together, these serve to boost hammer flushing and hence performance when drilling in very wet ground conditions, the company says. Adam Baker, engineering manager at Halco, comments on the DTH design process: “We utilise the latest in CAD modelling and analytical software, allowing us to simulate air flow and material selection. This enables Halco Rock Tools to deliver products of the highest quality, while at the same time improving drilling performance and durability.” Rockmore International has introduced its T-series DTH hammer line that eliminates the plastic component known as the blow tube/foot valve in the associated bit. Common plastic failures in the bit lead to downtime and drilling inefficiencies, and therefore this new T series
offers improvements in hammer dependability and productivity. “We recognised a trending demand in the DTH drilling sector for a high-performance DTH tool that could utilise industry-standard drill bits without plastic components in order to increase reliability yet not compromise drilling efficiency,“ comments Eghdami. The first hammer in the class, the ROK 600T, is a 6in-class model with high-performance drilling characteristics rated for drilling 6.1 to 7in (155 to 178mm)-diameter holes for blasthole applications in mining and construction. It is also suitable for water-well drilling since it exhibits good in-hole flushing, which is necessary to evacuate rock chips in deep applications. As a T-series design feature, the ROK 600T accepts the industry-established bit shank model QL60, but with the blow tube/foot valve removed. Rockmore designates the corresponding bit connection for this hammer as QL6T, which has an identical shank design to the QL60, but without the foot valve. Rockmore’s next step in DTH development is towards design and development of an RC hammer utilised in exploration drilling. Sandvik’s latest hammer design is the RH460, which promises to provide higher impact energy and drill performance while maximising productivity in most ground conditions. The range is designed to focus on reliability and endurance to ensure peak performance at all times while reducing costs, the company claims. As the next step, Sandvik will complete the RH460 family with a 3.5in (89mm) hammer and a 6in (152mm)-high pressure hammer. Finally, Boström adds that Wassara is busy optimising drill bits for its water-powered drilling, as well as working on a waterhandling system that reduces the solids to a level where the water can be recirculated back to the Wassara DTH hammer.
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GEODRILLING MAR'15.pdf (LARGE FILE).pdf 1 25/02/2015 16:40:15
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scope for more South African raiseboring and drilling company Master Drilling Group says it is currently working on an “industry-first” project for the mining sector with its RD8 raiseboring machine
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Above right and below: Master Drilling designed and manufactured the RD8 specifically for larger-diameter shafts
aiseboring is a method of creating a vertical, circular excavation between two levels within a mine or the underground mine and surface, without the help of explosives. It involves drilling a pilot hole from the upper of the two levels and then using a reaming head to create the required raise – of the correct diameter – by pulling it back towards the raiseboring unit. The method leaves behind a smooth-walled shaft, which generally needs little rock support. In underground mining raiseboring is used for ventilation, transferring ore from one level to another, silos for storing rock, access of personnel or material underground, and the hoisting of rock and ore to surface. The method can also be used in construction engineering when access shafts and ventilation shafts are required in underground metro and rail systems. The energy sector uses these types of holes and shafts in hydroelectric or pump
storage plants as pressure shafts. In addition, raiseboring is used for access to underground nuclear storage facilities.
RecoRd bReaKeR Earlier this year Master Drilling Group was awarded a shaftconstruction contract for South African copper producer Palabora Mining Company. To address Palabora’s requirements, the drilling-services company designed and manufactured the RD8 raiseboring machine specifically for larger-diameter shafts.
The RD8 is being utilised for the raiseboring of vent shafts for the Lift II project at the Palabora underground mine in Limpopo, which entails the construction of two ventilation shafts, each 6.1m in diameter and, according to Master Drilling, a record-breaking depth of 1.2km. Danie Pretorius, Master Drilling chief executive, comments: “Once completed, the project will qualify as the largest scope of raiseboring work per cubic metre ever embarked on, not only in South Africa but across the globe.” Master Drilling recently completed platinum miner Lonmin’s 1km Rowland shaft at the Marikana mine using similar technology. The company employed three local community members as part of its drilling crew, taking the new
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crew members with them to the new raiseboring project. Allowances have been made for video monitoring of the shaft and applying laser profiling at regular intervals. The torque is being monitored and controlled to avoid breaking the shaft, and fibrecrete is being applied by means of a remote-operated shotcrete system as directed by the geotechnical investigation reports. Master Drilling’s remote-operated shaft-support unit and inspection device will be used to line parts, or even the full depth of the shafts, either during or after the raiseboring process. The company claims that in comparison with its competitors’ systems, which can only go down to 350m with umbilical cords, its system can line up to a full 1.5km depth. The inspection device has the capability to scan the geometry of the execution and identify the lithology. This is
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important to determine the stability of the shaft during or after construction. The RD8 arrived at the Palabora mine in mid-May, with the duration of the contract scheduled for three years. The machine has progressed to beyond 400m, which is right on schedule.
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Another view of Master Drilling’s RD8 raiseboring machine
RaiseboRing technology The RD8 is Master Drilling’s 100th raiseboring rig, which is designed for shafts up to 8m diameter and 1.5km depth in hard rock. Master Drilling has estimated this technology to be up to four times faster than conventional blind sinking methods, and it only requires two personnel per shift working from the safety of an above-ground control room. “Compared with conventional methods, it is a lower-cost alternative and faster method, ensuring shorter operational
schedules, which offers economical and sustainable benefits to the client,” a representative of Master Drilling explains. The equipment and technology do most of the work, reducing the number of personnel required to operate the machinery and removing them
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Danie Pretorius
from any potential hazards during shaft construction operations, which drastically lessens the possibility of any safety-related incidents “We have a large raiseboring fleet, and these types of machines are the only ones that use 3m drill pipes. This is beneficial as it reduces the number of connections between the drill pipes in the length of the shaft, which has a significant
influence on the risks involved with drilling these shafts. The root size of the equipment and the ability to further expand its capacity from its current design makes it different.” The RD8 machine uses the latest operational technology also fitted to some of Master Drilling’s other large machinery, which enables full diagnostics, automotive and remote operation. When it comes to the next
step for this technology, there are a number of applications currently being mined or developed by conventional methods with bottom-hole access that could be easily converted to apply raiseboring, i.e. horizontal raiseboring, low-angle holes or ramps. The same technology can also be applied in the energy sector with the raiseboring of penstock and similar shafts.
Raising the bar Australian underground mining operations now have access to a new large-capacity raisebore rig, which is among the fastest, safest and most technologically advanced on the market, writes underground-mining contractor Pybar Mining Services
Pybar Mining Services recently took delivery of a Herrenknecht RBR600-VF raisebore rig
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he Herrenknecht RBR600VF arrived at Pybar’s headquarters in Orange, New South Wales, in March 2015. It is currently the second-largest raisebore rig in the Australian market and has increased the company’s raisebore capability. The majority of raisebore rigs in Australia have a maximum diameter potential of 6m or less. The RBR600-VF, developed by German rig manufacturer
Herrenknecht, has the capacity to construct shafts up to eight metres in diameter. This makes it one of only two in Australia with a capacity greater than six metres – and to a depth of 1,200m. Drilling shafts up to 1,000m with large diameters of up to eight metres requires rigs with high torque and high thrust forces. The RBR600-VF can deliver this with a thrust force of 10,000kN – or sufficient capacity
to lift a 1,000t weight under the rig. It has an extended height of 6.65m, retracted height of 4.86m, depth of 2.3m and width of 2.4m, and can be easily deployed underground. The rig is particularly well suited to mature mines with a need for deeper, wider shafts to access infrastructure or ventilate at depth. With the industry increasingly seeking non-entry mining solutions, reaming shafts with the RBR600-VF is safer, less labourintensive and, depending on the application, more cost-effective than conventional shaft sinking. Furthermore, the rig is said to be very efficient due to its variable-frequency drive. Whether utilising mains power or generators, its power consumption will be around half of that of an equivalent-capacity machine with hydraulic drive, potentially saving clients thousands of dollars on power bills. Pybar chief executive Paul Rouse says that as a major contractor in the Australian underground-mining industry, the acquisition of the rig ensures that Pybar has the capability and the capacity to handle projects of any scale. “There are very few contractors
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risks in raiseboring associated with manual handling, the RBR600-VF reduces these with fully automated mechanised wrenching and rod handling. Pybar is building further on the rig’s safety features by impleimproving safety menting remote breakout The rig includes technological advancements for reducing safety technology. Pybar operations manager David Hunter says the risks. With some of the biggest technology, which is currently in the design phase, will enable the Easily mobilised safe removal or replacement of the cutting head while also With its track-mounted mobile and compact increasing the efficiency of the design, the RBR600-VF offers flexibility even in drilling process. confined spaces and is therefore suitable for a “Currently, the typical safe variety of applications in the mining industry, work procedure for removing minimising the investment required in creating worn cutting heads is to lower access roads and underground chambers. the head to the bottom of the It can be used to create shafts for ventilation, hole and then manually cut off access and haulage, as well as pressure shafts for the head at the last rod, as it’s hydropower plants. deemed unsafe to lift the head In Europe the rig has proven itself in use out of the top of the hole,” says generally with its modular design and its efficient Hunter. centre-free drive. The rig can be mobilised by “Pybar’s remote system will be conventional-load road transport (quad axle float) able to access the bottom of the or overseas by ship in standard sea containers. to the rods, and DRILLING SUPPLIES ADVERT_Layout 1 20/07/2015 10:24 raise, Page connect 1 with this level of rig capability. It enables us to service the largest underground-mining projects in Australia with a full suite of services.”
then break the connection, meaning no personnel will be exposed to the open shaft. Using this technology to replace worn cutter heads will also save significant time, speeding up the drilling process.” In addition to these safety benefits, Pybar will offer remote pre-sinking for unstable ground in the vicinity of the hole collar. “Conventional pre-sinking requires significant labour inside the pre-sunk hole, but we’re proposing to start the hole with a Herrenknecht VSM vertical shaft miner, which will preclude the need for personnel to work inside the hole for concreting and reinforcing purposes,” says Hunter. All of this adds up to a safe and efficient large-capacity raise-drilling system, which removes workers from the line of fire and ensures safe drilling on large underground and surface projects.
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mastering underground challenges ThoroughTec Simulation explains how underground drill rig and bolter operators can benefit from simulator training
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perating underground drill rigs and bolters is a challenging, complex and potentially dangerous job. Besides making sure that they are running safely, operators need to be efficient and productive, which means taking a wide range of diverse factors into account. In an effort to master these factors, underground mines and training schools are increasingly turning to training simulators in order to train and prepare their drill-rig and bolter operators. Beyond training and evaluating novice operators, simulators can serve as a screening system for new recruits and provide effective refresher training for experienced operators. More than any other training method, simulators
Operator’s view of ThoroughTec flexible drill pattern editor and training aids
quickly, cheaply and effectively instil the theory and practical aspects of mining, and present an opportunity to expose operators to emergency situations not possible on the real mining equipment.
Upskilling operators “Despite advances in automation, complex drill rigs still need a skilled operator to run safely and efficiently,” says Richard Bellengere, executive vice-president of operations at ThoroughTec
“The operator has to bolt along what can sometimes be quite a jagged crack in the roof to make it safe for the following miners”
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Near right: despite advances in automation, complex drill rigs still need a skilled operator to run safely and efficiently Far right: dualboom drill-rig simulators can be configured to perform scaling, bolting and mesh-handling tasks, just like the real machine
Simulation, the company behind the Cybermine simulator system. “It’s important that the operator knows how to accurately position the rig and the boom/s, change rods on the carousel and drill at the right angle and pressure so that the rods and drill bit don’t burn up or break. Effectively controlling
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the load on the rod and bit is vital and extremely hard to learn without simulators,” says Bellengere. “All of this can be done on the simulator without risking damage or downtime to the actual equipment.” Drill-rig and bolter simulation takes into account factors such
as feed, rotation and percussion pressures, bit rotation speed and wear to provide a realistic drilling experience. At the end of each exercise, the instructor is provided with a set of reports covering every aspect of operation. For example, productivity reports detail quantifiable returns such as
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hole-position error, drill-angle error (pitch and yaw), hole depth, number of holes drilled, number of missed or skewed holes, as well as averages and totals for these quantities. The operator is continuously evaluated against a set of predefined checks for the particular cab simulated and each is categorised according to whether it affects health and safety, machine use or productivity enhancement. At the touch of a button, simulator trainees can be exposed to any conceivable emergency situation. This prepares trainee operators to identify hazards in the real world and either prevent incidents or, at the very least, respond to them effectively, thereby preventing accidents and reducing downtime for better productivity.
CUstomised simUlation According to ThoroughTec, simulators can also be customised to match the specific equipment operating on a client’s mine site. For example, underground dual-boom drill rigs can
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be configured to perform scaling, bolting and mesh-handling tasks. A flexible drill-pattern editor allows instructors to configure custom rock-face drill patterns and sequences, giving trainee operators the opportunity to read patterns and understand how their drilling technique is imparted on these patterns. Alignment guides assist in correct positioning of the drill boom. As a result, the operator is able to exercise correct drilling and bolting techniques for each scenario and rock type. Customising the 3-D virtual mine world in which the operator will train is also very important. The more accurate and realistic the world is, the more training value will be gained from every exercise. “We have done a lot of detailed work to simulate the underground drilling and rock-support environment,” says Malcolm Bennett, manager of 3-D art research and development at ThoroughTec. “Besides a standard face where operators can test their distancing from the wall and between each bolt, we have simulated brow, slip and undercut bolting scenarios.” The bolter operators need to know how to tackle each type of face they encounter in a safe and productive manner. “The slip-bolting scenario is particularly tricky,” says Bennett. “The operator has to bolt along what can sometimes be quite a jagged crack in the roof in order to make it safe for the following miners.” The brow and undercut bolting scenarios help teach the operators to bolt and make areas safe where the continuous miners have not cut cleanly along the roof and side walls.
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Bolting example Recently a colliery in South Africa’s Mpumalanga province received a Cybermine simulator to train its Fletcher bolter operators. As an example of incorrect procedure, the mine found that some operators were bolting without deploying the jacks. “This puts extra strain on the tyres, decreasing their life,” says Bellengere. The simulator will help them avoid this
incorrect procedure altogether. Besides the possibility of fall of ground, other dangers include possible pinching and getting caught in some of the moving parts. “Simulators help develop muscle memory so that operators can spend more time concentrating outside the cab, on dangers and making the environment safe,” says Bellengere.
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ITALY
Fresh supply of water A Massenza rig becomes part of the drilling solution for a 400m-deep water well in complex soil conditions in the town of Monterotondo Scalo in central Italy
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Above: a new source of water successfully drilled Ragionieri’s job site in Monterotondo Scalo, Rome
ack in March this year, Larcianoheadquartered waterwell company Ragionieri Loriano di Ragionieri Alessandro was contracted to drill a well on a site in the town of Monterotondo Scalo in the met ropolitan city of Rome to provide a source of water for the washing of freshly picked fruits and veg etables. The site is in Media Valle del Tevere, which geologically and structurally corresponds to a great part of the Graben del PagliaTevere, a complex valley of tectonic origin, filled with powerful sequences, mainly terrigenous sediments deposited in the PleiocenePleistocene era. The basin fill consists of marine sediment, but also of transition and continental origins. The maximum thickness of the deposits, estimated on the basis of gravity and drilling data, ranges from a minimum of approximately 300m up to between 800m and 1,000m. On this basis, the Ragionieri company had to find a drilling solution that would satisfy the
client from an economic point of view and at the same time guarantee adequate production use; a flow rate of 810L/s was requested.
DRILLING SOLUTION The contractor’s proposal, which led to the company winning the bid, included using a reverse circulation (RC) muddrilling technique, where it is possible to install largediameter, medium to deep wells, without encountering problems with the complex alluvial soils and rock while maintaining a high feed speed. The mudcirculation system included pumping down the drilling fluid between the borehole and the rods. The drill cuttings produced by the tricone bit were then recirculated back up inside the rods to the head of the works and into a settling tank. The cuttings were then allowed to settle out of suspen sion and the fluid was reused. The drilling was performed for about 200m with an initial diameter of 357/16in (900mm), and was continued for another 200m with a diameter of 1911/16in (500mm). At the end of the operation, a tube of carbon steel with a diameter of 1331/32in (355mm) was inserted into the formed hole. The decision to drill a large diameter hole and then to insert a tube, which was one third of the size, created an installation with the following requirements: • fill the interspace between borehole and production
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•
column, so as to keep the hole open and prevent any caving; reduce or eliminate the entry of sand into the well during the pumping phases; allow greater functionality of the filter; increase the permeability of the aquifer near the hole; bring down losses of hydraulic load; and establish a gradual transition speed between the aquifer formation and filters.
• • • •
Far left: the MI25 rig performing with a reversecirculation system Near left: MI25, with 24,500daN, drilling a 400m water well
ITALIAN RIG For the job Ragionieri used a Massenza MI25 drilling rig that had the combined size, perform ance and technical features required for the hydraulic pullup and torque. The MI25 has a boxtype mast of 10.3m length and a capacity of 34,300daN powered by a 400kW engine; with a pullup of 24,500daN and a rotary head with a maximum torque of 23,500Nm
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and maximum speed of 120rpm, it can perform drilling up to 600m. The Ragionieri MI25 is equipped with a duplex mud pump that can provide 2,200L/m at 110 bar. The project produced approxi mately 120m3 of waste tailings, which were disposed of in an authorised landfill. The well development was
carried out with an airlift system, in order to improve the hydraulic characteristics of the wellaquifer system. This technique has ensured a final operating capacity equal to the 9L/s that had been specified by the client. With the Massenza rig com bined with the thorough prepara tory geological studies undertaken in the planning, designing and execution phases, Ragionieri Loriano Di Ragionieri Alessandro was able to satisfy the customer’s requirements in regards to both the yield and efficiency of the well and the execution time (about 2.5 months).
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ITALY
More modes of drilling The versatile Geax EK110 rig is living up to its potential, finding use in more drilling applications around the world CLL’s multifunctional Geax machine
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talian drillingmachinery manufacturer Geax’s latest design – the EK110 – was created in 2013. Like all machines of the EK series, of which it is the largest, it is a multipurpose rig able to operate in various different drilling modes. The rig was originally designed to work in three different modes: telescopic kelly piling, continuous flight auger (CFA) and diaphragm walls. However, over time, in response to customer requests and due to their support during the design
and testing phases, several other applications have been developed. Among these are the special solutions developed in collabo ration with the companies Idrogeo from Italy and Contract Landscapes Ltd (CLL) from New Zealand.
GSHP DRILLING Drilling company Idrogeo contacted Geax to request a custom machine for geothermal wells, which needed to be compact in size and should not exceed (in weight) the standard
Italian transport regulations. The wells in question are to be used for energyefficient groundsource heat pumps, which extract ground heat in the winter – for heating pur poses – and transfer heat back
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into the ground in the summer – for cooling. The Geax solution was based on a special version of the EK110, provided with expand able tracks, and equipment able to drill in kelly bar up to a depth of 47m, continue drilling in drop weight with a freefall winch up to about 80m and then in reverse circulation until the desired depth of around 140/150m. A casing oscillator completes the rig. The machine, built in 2014, has already accomplished multiple projects on difficult job sites, mainly in city centres, including the main street of Milan (Corso Vittorio Emanuele), where the EK110’s compactness and power were of great benefit.
ment method for increasing the loadbearing capacity and reducing the settlement of the soil. The stone column consists of crushed coarse aggregates of different sizes that are to be placed into the soil at even intervals throughout the area of land, where the soilbearing capacity is to be enhanced. This is done by using vibro flots, which are forced into the ground. The aggregates are then allowed to take the place of the displaced soil, which exerts a pressure on the sur rounding soil. The solution implemented by Geax was that of a standard EK110 provided with speciality kits designed to permit the use
of all the equipment needed by the customer. The modularity of the components makes conversion between the different kits very easy, fast and lowcost. The vibroflot and vibro hammer kit starts from the standard CFA configuration, exploiting its long mast and replacing the rotary head with a carriage with a double attaching point that can hold both tools. The carriage is provided with the same patented pulldown system (BPS) of the CFA version that passes a crowd force to the vibroflot or sheet pile. Stone columns can reach 10/12m in depth and 800mm in diameter. The vibrofot tool was supplied by STA and the 6kg vibroham mer by Inteso. The soilmixing application is basically the same as on the CFA version with only a few changes in rotation speed and rod centralisers. In addition to the mechanical parts, the hydraulic and electrical system has also been prepared for the various config urations, and a Geomisure computer was added to control every application. Further to these two particular cases, the Geax EK110 and the rest of the EK series were already configured to work in soildisplacement, jetgrouting and downthehole hammer applications.
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Idrogeo’s customised EK110 rig
“The machine, built in 2014, has already accomplish ed multiple projects on difficult job sites, mainly in city centres”
SPECIALITY KITS In New Zealand, the recent earthquakes have led to a phenomenon called soil lique faction, particularly in the area of Christchurch. Geax received a request from CLL for a multifunctional machine capable of working in vibroflotation, vibratory hammer and soilmixing configurations, in addition to the standard kelly and CFA. Vibroreplacement stone columns are a groundimprove
The EK110 drilling geothermal wells in Italy
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FEATURE REPORT SPECIAL NAME
New tools on show Drilling-equipment manufacturer and distributor Agiva International will be introducing new products for dewatering, down-the-hole (DTH) and ground-source heat-pump applications at Matexpo 2015 in Kortrijk, Belgium, on September 2- 6
A wellpointing rig designed by Agiva International
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“As of April 2015, Agiva has also been a distributor for the South Korean Joytech DTH hammers�
The Wellpointer 1800 is compact and easily transportable.
ewatering, or the control of groundwater, is a technique of removing water from soil. One dewatering method by means of pumping uses a range of dewatering wells, called wellpoints, which are typically installed along trenches or around construction sites. By lowering the water table, the terrain is then ready for excavation, allowing for the dry installation of different types of subsurface structures and utilities. Construction sites on soft sediments (e.g. sandy silts, coarse sand and sandy clay) often require this process in preparation of groundworks.
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SPECIAL REPORT
Today, demand for deeper and more efficient wellpointing is mounting. In addition, in many cases the drained groundwater needs to be reinjected into the aquifer (deep wells).
NEW WELLPOINTER For this application, Agiva has engineered the new Telescopic Jetting Mast Wellpointer 1800, built on a Pauselli undercarriage. The company explains that its main aim was to radically rethink the standard wellpointing mast design mounted on an excavator in order to successfully meet the demands of modern dewatering project sites. The new rig can be tailor-made in line with customers’ needs. According to Agiva, it is light (12t), fast, agile (with a 360° slewing ring) and compactly transportable (2.31m in height). Due to its telescopic drilling mast, with a stroke of 10m, the machine can drill to a depth of 10m without the need for additional rods. This allows for a more efficient process as the operator does not lose time adding or removing rods during the drilling process. This can be done even more efficiently by combining the telescopic mast with a telescopic drill rod, which makes it possible to drill up to 20m deep.
The machine is fitted with a 10kW generator and proportional auxiliary hydraulic feeds, so the client has the possibility to power electrical appliances, such as a welding post or submersible pump. The rig can also be used for the installation of deep wells (e.g. 20m depth). Thanks to the 2,000kg pull-up force, dozer blade and automatic levelling device, the rig has the ability to drill straight holes very quickly.
OTHER EQUIPMENT As of April 2015, Agiva has also been a distributor for the South Korean Joytech down-the-hole (DTH) hammers. The company claims that these DTH hammers deliver high penetration rates and reliability, and are used widely in Australia and North America. Agiva is also introducing its new range of polycrystalline diamond compact (PDC) bits. Designed for mud-rotary drilling, these newgeneration PDC bits are said to perform efficiently in soft formations, sandstone and claystone. Agiva states that penetration rates have been proven to increase by 30% in comparison with classic wing bit drilling, when combined with the right mud pump and drill rod. At present, Agiva is also
working on a new design of geothermal grouting unit. In the new grouting plant the grout is mixed colloidally in a 200L mixing tank and pumped by a doubleacting piston pump to the borehole. A 400L buffer tank is available for preparing some batches in advance. This way, the operator should be able to fill a 6in (152mm), 300ft (91.4m) borehole in about 15-20 minutes. In addition to these tools, Agiva is also known for designing wing bits for mud-rotary and reverse-circulation drilling. Owing to the large inner passage, thick carbide and manual brazing into the matrix, these bits have a superb penetration rate and longevity, the company states. For every application there is a bit, whether flushing straight ahead or sideways; the bits are tailored to the formation to be drilled. Agiva’s product offerings will be on display at the construction equipment trade fair Matexpo 2015.
Editorial
With co-operation from: The British Drilling Association, The Australian Drilling Industry Association, The Canadian Diamond Drilling Association
Advertisement offices Italy & Switzerland Contacts: Fabio Potesta, Daniela Chiusa Media Point and Communications SRL, Corte Lambruschini – C.so Buenos Aires 8- Vº piano Int. 7 16129 Genova, Italy. T +39 010 5704948 F +39 010 5530088 E info@mediapointsrl.it / daniela.chiusa@mediapointsrl.it
Rest of world Contact: Linda Winfield T +44 (0)1268 769666 E linda.winfield@geodrillinginternational.com North America Contact: Chad Dorn T +1 720 8553996 E cdorn@miningadvertising.com
GeoDrilling USPS 001–430 is published monthly, except February and July, which are combined issues (Jan/Feb and Jul/Aug), by Aspermont Media, 4th Floor, Vintners Place, 68 Upper Thames Street, London EC4V 3BJ, UK The 2015 US annual subscription price is US$170. Airfreight and mailing in the USA by Agent named Air Business, c/o Worldnet Shipping USA Inc., 155-11 146th Avenue, Jamaica, New York, NY 11434. Periodicals postage paid at Jamaica NY 11431 US Postmaster: send address changes to GeoDrilling International, Air Business Ltd, c/o Worldnet Shipping USA Inc., 155-11 146th Avenue, Jamaica, New York NY 11434 Subscription records are maintained at Aspermont Media Ltd, Chancery Exchange, 10 Furnival Street, London EC4A 1YH, United Kingdom Aspermont Media, publisher and owner of GeoDrilling International (‘the publisher’) and each of its directors, officers, employees, advisers and agents and related entities do not make any warranty whatsoever as to the accuracy or reliability of any information, estimates, opinions, conclusions or recommendations contained in this publication and, to the maximum extent permitted by law, the publisher disclaims all liability and responsibility for any direct or indirect loss or damage which may be suffered by any person or entity through relying on anything contained in, or omitted from, this publication whether as a result of negligence on the part of the publisher or not. Reliance should not be placed on the contents of this magazine in making a commercial or other decision and all persons are advised to seek independent professional advice in this regard.
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Subscriptions and circulation
T +44 (0)20 8955 7050 E subscriptions@gdi.com Aspermont Media Ltd, Chancery Exchange, 10 Furnival Street, London EC4A 1YH, United Kingdom Publisher Robin Booth
The new rig has a telescopic drilling mast with a stroke of 10m
Annual subscription – UK and Europe: £95.00 (€160.00 eurozone) Rest of world: US$170.00. Additional current copies are available to subscribers at £12 (US$21) each
Editor Nia Kajastie E nia.kajastie@aspermontmedia.com Head of production Tim Peters Senior sub editor Jim Adlam Sub editor Woody Phillips Editorial enquiries T +44 (0) 20 7216 6026 F +44 (0) 20 7216 6050 www.geodrillinginternational.com
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39
Chairman Andrew Kent
Media
© Aspermont Media 2015 ISSN 0969-3769
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SUPPLIES & SERVICES
AUGER BORING EQUIPMENT ATLAS COPCO CONSTRUCTION & MINING (see under Bits) JKS BOYLES UK LTD (see under Equipment)
GLOBAL SUPPLIER OF DIAMOND DRILLING EQUIPMENT We supply high-performance equipment for the most demanding conditions. With our ELITE product range, we aim to reduce costs and increase productivity for our customers.
Distributor inquiries welcome
Newly Patented Matrix Technology UltraTerra Mining core bits Geotech geotechnical core bits Made in Canada
ISO 9001:2008 REGISTERED www.diaset.com
Bits@diaset.com skype: diaset.sales
• Elite impregnated diamond core bits: Last Longer Drill Faster • Elite WL drill rods heat treated by induction • Elite core barrels for quick descent
FOUNDATION DRILLING TOOLS CFA AUGERS UTILITY & POST HOLE AUGERS HYDRAULIC AUGER & ANCHOR DRIVES AUGER DRILLING ACCESSORIES 5 Whitehall Farm | Cambridge Rd | Croxton | Cambridgeshire | PE19 6SS | United Kingdom Office: 01223 652155 | Fax: 01480 861446 DD: 01223 652156 | Mob: 07976 087756 www.pro-dig.co.uk
BITS BULROC (UK) LTD (See under Hammers Down-The-Hole) CLEAR SOLUTIONS INT. LTD (see under Drilling Fluids) DCM DRILLQUIP LTD (see under Equipment) JKS BOYLES UK LTD (see under Equipment)
• Elite Twistfix overshot for productivity and safety
Contact us: TEL :+33 381 41 06 06 FAX : +33 381 41 30 33 Email: datc@datc-group.com
Mining Magazine is the industry’s leading magazine
Website : www.datc-group.com
Print • Online • Tablet Mobile • Newsletter
Read specialised reports on every aspect of drilling in soils and rocks – wherever you are Visit www.appstore.com/ GeoDrillingInternational
GEOGEM CLASSIFIED(5)_Layout 1 21/05/2015 10:34www.miningmagazine.com Page 1
Geogem Limited GG
We offer a unique in-house turnkey solution for geotechnical drilling operations Atlas Copco Mining and Rock Excavation Technique 01442 22 2416 ac.cmtuk@uk.atlascopco.com www.atlascopco.co.uk
UK MANUFACTURER OF HIGH PERFORMANCE DRILLING TOOLS INCLUDING DIAMOND CORE BITS AND DRILL BITS, CASING SHOES, REAMING SHELLS, TUBE DRILLS AND JUNK MILLS. FOR THE CIVIL ENGINEERING, GEOTECHNICAL, MINING, OIL AND GEOTHERMAL DRILLING INDUSTRIES www.geogem.co.uk Tel: +44 (0)1745 815315 sales@geogem.co.uk
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SUPPLIES & SERVICES
BOREHOLE PUMPS
41
CIRCULATION SAMPLING
GEOQUIP WATER SOLUTIONS LTD. Tel +44 (0) 1473 462046 www.geoquipwatersolutions.com. Borehole Pumps, Downhole CCTV, Wellmaster Rising Main, Starter Panels, Compression Fittings PROQUIP DIRECT LTD, Tel: +44 (0)20 8712 5982 E-mail: sales@proquipdirect.com www.proquipdirect.com Borehole Pumps, Flexible Rising Main, Starter Panels, etc
BOREHOLE SURVEYING EQUIPMENT www.
.com
BULROC (UK) LTD, (See under Hammers Down-The-Hole)
CONSULTANTS ATLAS COPCO CONSTRUCTION & MINING (see under Bits)
CONTRACTORS (DRILLING)
Your partner for borehole surveying equipment from DevicoÉ Introducing DeviShot: The innovative, new EMS survey instrument from Devico, featuring Bluetooth wireless for fast, reliable communication.
Brilliant Blue Technology (BBT)TM Devico
Visit www.geomem.com or phone/email for information Tel: +44(0)1382 329 011 surveys@geomem.com
CABLE & PIPE LOCATION MLS
e: admin@apex-drilling.com
GOING UNDERGROUND
MANS Location Services supply to industry professional a full range of products including:
Drilling Equipment www.marchigiorgio.it
• • • • • •
THE BEST RATE QUALITY/PRICE ON THE MARKET!! Via Perticari 16, 47035 Gambettola (FC) Italy Tel & Fax: +39-0547-56-715 Cell: Simone Marchi +39-348-154-5775 Cell: Nicola Marchi +39-348-154-5840 Info@marchigiorgio.it Representative distributor for tricone bits: Focus-AtlasCopco, CGT,Drilcos,KLR.
Cable Location Site Survey Water Leak Detection CCTV Lighting Specialist Cutting Systems
Geotechnical – Geothermal – Mineral Exploration – Water Boreholes (Air & Mud) Restricted Access (Rotary & S&A) – Mini Piling – Concrete Drilling & Sawing
MLS is able to offer a full repair and calibration service for our own range of products and others too.
MASSENZA fu GIUSEPPE IMPIANTI di PERFORAZIONE S.r.l.
TEL. +39 (0521) 82-5284 RIC. AUT. FAX +39 (0521) 82-5353 Http: www.massenzarigs.it E-mail:info@massenzarigs.it
T: 01458 851276,F: 01458 850544 E: ros@jacksondrilling.co.uk W: www.jacksondrilling.co.uk
www.mansls.com
LOUGHNEY CONSTRUCTION AND DRILLING
CASING & ANCILLARY EQUIPMENT
• ROTARY AND CABLE PERCUSSION • DRILLING CONTRACTOR • SITE INVESTIGATION ENVIRONMENTAL DRILLING • LOW HEADROOM CP • WELLS • D.T.H.
8 sales@mansls.com +44 (0) 1249 816 181
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) CHENALORD DRILLING SUPPLIES (see under Equipment) COLCRETE EURODRILL (see under Drill Pipes, Rods & Tubulars) DCM DRILLQUIP LTD (see under Equipment)
VIA EMILIA 58/E/F 43030 PAROLA (PR) ITALY P.I. 00746150341
: Hire Division
Telephone: 07542 185 943 email: martinloughney@yahoo.com.
E-mail: commerciale@massenzarigs.it
eNewsletter GeoDrilling International’s monthly eNewsletter is delivered directly to approximately 5,000 subscribers. Our recipients include board members, middle management, contractors, engineers as well as government and utilities companies. TRICORE LIMITED Woodburn Road, Blackburn Industrial Estate, Kinellar, ABERDEEN AB21 0RX,Scotland Tel: (01224) 790338 Fax: (01224)790660 ROCK BITS FOR THE DRILLING INDUSTRY SPECIALISTS IN THE SUPPLY AND REFURBISHMENT OF ROCK BITS FOR THE WATERWELL DRILLING INDUSTRY. LARGE DIAMETER ROCK BIT RENTAL www.tricore.co.uk
Visit our website www.geodrillinginternational.com
If you would like to receive this newsletter, go to www.geodrillinginternational.com Register under the ‘Newsletter’ tab on the homepage. If you would like to place an advertisement, please contact Linda Winfield on+44 (0)1268 769666 linda.winfield@geodrillinginternational.com
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SUPPLIES & SERVICES BOODE 4 CM CLASS 2015 NEW_proof 29/01/2015
waterwell systems World leading manufacturers of PVC Screen & Casing Range includes Select, Continuous Slot, Gravel Coated, Dual Wall Approved to Regulation 31 Johnson Screens Stainless Steel Screen & Casing BOODE U.K. Ltd - U.K. Baroid Industrial Drilling Products Brindley Road Dodwells Bridge BoreSaver Well Rehabilitation Treatments
Hinckley, Leics., LE10 3BY tel: +44 (0)1455 61 13 17 Email: info@boodeuk.com
www.boode.com
UK based international drilling contractor specialising in: Meridian Drilling Ltd Unit K, Clipstone Holding Centre, Clipstone Village, Mansfield NG12 9AP.
•Wireline, Diamond & Core drilling •Reverse Circulation & RAB drilling
Environmentally Friendly Drilling Fluids
•Geotechnical drilling
Tel. +44 (0)1623 624812 Web. www.meridiandrilling.com Email. info@meridiandrilling.com
t: 01458 851515 e: sales@tordrilling.co.uk www.tordrilling.co.uk
Innovation & Expertise
Geothermal Grout, Bentonite Sealants & Pellets
•Knowledge, Experience & Logistical Expertise
Drilling Fluid Mixing and Recycling Systems
CORE BOXES DRI LLING LIM I TED
T
Geot
| Rotary Sonic | Utility Surveys | Concrete Coring | Rotary Drilling | Geobor S | In-situ Remediation
| Vacuum Excavation | Dynamic Sampling | Sonic Drilling | Geothermal Boreholes | Water Wells
+44 (0)1939 235754
W
www.drilling-products.com
DRILL PIPE & ANCILLARY EQPT ATLAS COPCO CONSTRUCTION & MINING (see under Bits) COLCRETE EURODRILL (see under Drill Pipes, Rods & Tubulars) DCM DRILLQUIP LTD (see under Equipment)
Geotechnical & Environmental Drilling Contractors
T: 01485 851515 E: sales@tordrilling.co.uk CORE BARRELS & ANCILLARY EQPT
www.tordrilling.co.uk
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) DATC EUROPE S.A. (see under Bits) JKS BOYLES UK LTD (see under Equipment)
TECSO, S.A.
C/ Carpinteros 4 28500 Arganda del Rey (Madrid) ESPAÑA Tel.: +34 918 701 547 - Fax: +34 918 714 169 comercial@tecso-sa.com - www.tecso.es
Diamond Drilling Equipment Manufacturer • Corebarrels • Drill Rods • Diamond and T.C. Core Bits • Casings • Concrete Drilling Bits Conc • Wireline • Accesories
abcde
Visit our website www.geodrillinginternational.com
GREAT SERVICE, QUALITY AND PRICES!
DRILL PIPES, RODS & TUBULARS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole) CHENALORD DRILLING SUPPLIES (see under Equipment) DCM DRILLQUIP LTD (see under Equipment) JKS BOYLES UK LTD (see under Equipment)
• All Rotary, Mini rig and C/P tooling stocked • Wireline & conventional coring products • HFS steel casing repaired or new • Hydraulic clamps & spider bowls • Sub adaptors • Diamond corebits • 3 Wing step drag bits • Coreliner/coreboxes • Bentonites & Installation equip • In-house engineering department ALSO NEW HANJIN ROTARY DRILLING RIGS 8-350 TON PULL BACK, HIGH SPEED HEADS, AT UNBEATABLE PRICES! RING NOW! +44 (0) 1207 271 212
www.drillingsupplies.net
LEADERS IN GROUND ENGINEERING EQUIPMENT
DIRECTIONAL DRILLING ATLAS COPCO CONSTRUCTION & MINING (see under Bits) DCM DRILLQUIP LTD (see under Equipment)
DRILL & BLAST BULROC (UK) LTD (see under Hammers down the hole) HALCO ROCK TOOLS (see under Hammers down the hole)
DRILLING FLUIDS ATLAS COPCO CONSTRUCTION & MINING (see under Bits)
Mini piling/Piling casings (up to 32”) Casing advancing systems Reverse circulation Rotary percussive Water well casing Drill rods and drilling consumables Grouting and bentonite mixing and pumping equipment
www.colcrete-eurodrill.com
DRILL RIGS FOR HIRE Colcrete Geo D class ad.indd 1
ABI EQUIPMENT LTD (see under Drill Rigs Rotary) JKS BOYLES UK LTD (see under Equipment)
17/2/10 11:13:17
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SUPPLIES & SERVICES
Danbar Drilling Services – Hire Division
Drill rigs for rental
Rigs and Equipment available to hire for Geotechnical and Geothermal. • Rotary rigs available 20 tonne - 4 tonne pull back • Cable percussive rigs • Mud pumps • Loop winders • Hydraulic power packs • Drill rods • Casing etc. Danbar Drilling Services Ltd, Unit 5 Leopold Street, Lamberhead Industrial Estate, Pemberton, Wigan, WN5 8DH NORTH 8CM AD_Layout 1 27/04/2015 11:45 Page Contact Daniel 07801843080 admin@danbardrilling.com.
W
E
Unit 9, Salcombe Road Meadow Lane Industrial Estate Alfreton, Derbyshire DE55 7RG
S
Zero By Zero
NORTH EQUIPMENT LTD
Tel: 01773 521382
PILING EQUIPMENT
NORTH EQUIPMENT FOR HIRE Range of Soilmec CFA and Rotary piling rigs for hire Hire with option to purchase Sale of used Soilmec equipment Latest technology combined with reliability
Equipment for pile driving, shoring, drilling and other special civil engineering projects
• • • •
Sales Hire Parts Service
Barn Way, Lodge Farm Ind Est Northampton NN5 7UW MDT CLASSIFIEDcopy_Layout Tel: +44 (0) 1604 586960 sales@abi-eqp.com • www.abi-eqp.com
NORTH
Fax: 01773 521377
www.rigservices.co.uk DRILL RIGS (PERCUSSIVE) ATLAS COPCO CONSTRUCTION & MINING (see under Bits)
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NEW UK Agents for MDT
Selling a range of mini piling rigs from 2 tonne up to 25 tonne and large diameter CFA rotary rigs from 30 tonne up to 90 tonne. These rigs are manufactured in Italy and we will be responsible for the import and sales, service, repairs and spare parts. We have a factory-trained engineer who will be dedicated to MDT equipment.
DRILL RIG REPAIRS JKS BOYLES UK LTD (see under Equipment)
Excavator-mounted Mud Pumps Sales and hire of Excavator-mounted Mud Pumping Equipment for dredging water ways
DRILL RIGS (ROTARY)
Experts with a passion Herne House | Herne Park | East Road | Oundle | PE8 4BZ Office +44 (0)1832 273977 | Mob +44 (0) 7721 514 005 robin@northequipment.co.uk www.northequipment.co.uk
Mining Magazine is the industry’s leading magazine
Print • Online • Tablet Mobile • Newsletter
•Casagrande Drilling Rigs •Hutte Drilling & Mini Piling Rigs •Eurodrill (Germany) Drifter Heads •Hany Grout Pumps Casagrande UK Unit 3, Botley Lane Chesham Bucks HP5 1XS, UK Tel:+44 (0)1494 794990 Fax:+44 (0)1494 794991
MDT Sales Ltd, Herne House, House Park, East Road, Oundle, PE8 4BZ, T: +44 (0) 1832 273977 M: +44 (0) 7721 514005 Website: www.mdtspa.it Email:robin@mdtsales.uk Building on excellence and industry knowledge
+
Print Online Tablet Mobile Newsletter
info@casagrandeuk.com
www.casagrandeuk.com
www.miningmagazine.com
www.tunnelling-and-trenchless-world.com
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SUPPLIES & SERVICES
DTH Hammers & Bits Shock Subs – 3”-24” RC Hammers & Drill Rods Flushing Shafts Drill Shanks Drill Rods Fishing Tools – Spear & Bell Taps Grout, Water & Air Bottles Casing Shoes – TC Insert & Button Type Drill Bits – PCD & Tricone Drag Bits Hoisting Swivels Adaptors Re-cut Service Bespoke manufacturing
Quality and performance Tel +44(0)1246 208745 enquiries@chenalord.co.uk dci drillquip classified 2015_proof 15/07/2015 14:36 WWW.CHENALORD.CO.UK
RIGS - BOATS
Hundreds of used drill rigs and boats for sale Drilling/Workover Rigs and related equipment Workboats/Tugs/Barges/Dredges
Tel (516) 536 7375 rigs@sunmachinery.com
Scan this QR Code with your smartphone
www.sunmachinery.com ATLAS COPCO CONSTRUCTION & MINING (see under Bits) JKS BOYLES UK LTD (see under Equipment)
DRILL RIGS (SONIC)
Award-Winning
DCM DRILLQUIP LTD Manufacturers of Drilling Equipment
Tel: +44(0)2476 348328 Fax: +44(0)2476 348329
n Rotary / Blast Hole Drill Rods n Casing – Full range manufactured n Cement Grout Shoes n Fabrications and Repairs n Drill Collars n Adaptors n Hole Openers
Visit our website www.geodrillinginternational.com
n Drag and Rock Roller Bits n Stabilisers n Clamps n Fishing Tools n Specialised Products to Customer Requirements n Stainless Steel Screens
Email: sales@drillquip.co.uk Web: www.drillquip.co.uk DCM Drillquip Ltd, Hazell Way, Off Bermuda Road, Nuneaton, CV10 7QG, UK
Patented Technology
The real alternative for drilling equipment supplies... www.sonic-drill.com
SONIC DRILL CORPORATION Suite 190#120, 119 N. Commercial St. Bellingham, WA 98225 1-604-588-6081
DTH HAMMERS & BITS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (See under Hammers Down-The-Hole) CHENALORD DRILLING SUPPLIES (see under Equipment) HALCO ROCK TOOLS (see under Hammers down the hole)
EQUIPMENT
Corebarrels Metric, Imperial and Wireline Drill Rods, Adaptors and Saver Subs Drive Sampling Equipment Diamond Bits Robit Casing Systems Bulroc DTH Equipment and Systems Rockbits,Drag Bits and Casing Shoes Boart Longyear Sonic Tooling
Store Drill UK Ltd Unit 5 Crossroads Business Park Creswell Road Clowne Chesterfield Derbyshire S43 4PW
Tel: 01246 810457 Fax: 01246 810580 Email: sales@drillstoreukltd.com
www.drillstoreukltd.com DISTRIBUTORS FOR:
BULROC (UK) LTD. (see under Hammers Down the Hole) COLCRETE EURODRILL (see under Drill Pipes, Rods & Tubulars)
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SUPPLIES & SERVICES
C O M P L E T E
D R I L L I N G
45
S Y S T E M S
Manufacturers and suppliers of diamond drilling, auger and environmental equipment
T h e I n n ova t o r s JKS Boyles Limited UNIT 9, SALCOMBE ROAD, MEADOW LANE IND. EST., ALFRETON, DERBYSHIRE DE55 7RG, UK Tel: +44(0)1773 835323 Fax: +44(0)1773 835075 Email: sales@jks-boyles-ltd.co.uk www.jksboyles.co.uk Highly specialised information on every aspect of drilling
Core Barrels, Metric/Imperial Casing, Metric Imperial Drill Rods, Casing Shoes, Drag Bits, Fishing Tools, Hoist Swivels, Sub Adaptors, Window/Windowless Samplers, Hydraulic Casing Pullers, Hydraulic Cylinder repairs.
Print • Online • Tablet Mobile • Newsletter
R.B. JOHNSON ENGINEERING LTD Littlemoor Business Centre, Littlemoor, Call: +44 (0) 1477 539100 Eckington, Sheffield, S21 4EF, UK Email: enquiries@skelair.com rbjohnson@btconnect.com Visit: www.skelair.com Tel: +44 (0) 1246 431777
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC UK LTD (see Hammers Down-The-Hole)
CR-12
CR-26
CR-16
Custom Diverters Schramm Case Package Errickson Equipment 10” & 16” in stock Ready to ship 277 Kingwood Stockton Road, Stockton, NJ 08559,USA (P) 908.996.2200 (F) 908.996.4326 Email: sales@errickson Schramm - 450WS Machined & equipment.com Drilling 8” holes Fabricated in the USA
ERRICKSON EQUIPMENT
GARLOCK KLOSURE SEALS - MARTIN SPROCKET - TIMKEN BEARINGS -
www.drill-systems.com • www.erricksonequipment.com
Member of the
www.rbjohnson.co.uk
www.geodrillinginternational.com
The number one name in ground engineering and rock drilling equipment... Offering the complete solution for all ground engineering and rock drilling requirements, Skelair International is the number one choice for quality, price and service:
FOUNDATION DRILLING EQUIPMENT
Sales – new and used rigs Rentals – well maintained hire fleet Consumables – stock items with rapid delivery Support – in-house technical and engineer team
Skelair International represents all major and market-leading manufacturers worldwide, including:
GEOTHERMAL EQUIPMENT & MATERIAL SUPPLIES ATLAS COPCO CONSTRUCTION & MINING (see under Bits) CHENALORD DRILLING SUPPLIES (see under Equipment) CLEAR SOLUTIONS INT. LTD (see under Drilling Fluids)
GROUTING ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole) CHENALORD DRILLING SUPPLIES (see under Equipment) DCM DRILLQUIP LTD (see under Equipment)
GROUTING EQUIPMENT Wherever you are in the world, for all your ground engineering and rock drilling requirements:
Wherever you are in the world, for all your ground engineering and rock drilling requirements:
01477 539100
Call: +44 (0) 1477 539100 Email: enquiries@skelair.com Visit: www.skelair.com
enquiries@skelair.com
Rig rentals available in the UK only
www.skelair.com
Member of the
Rig rentals available in the UK only
EXPLORATION DRILLING Visit our website www.geodrillinginternational.com
ATLAS COPCO CONSTRUCTION & MINING (see under Bits)
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BASKI PACKERS USA. www.baski.com info@baski.com Ph.+1 (303) 789-1200 Fax: +1 (303) 789-0900 CHENALORD DRILLING SUPPLIES (see under Equipment) COLCRETE EURODRILL (see under Drill Pipes, Rods & Tubulars)
HAMMERS (DOWN-THE-HOLE) ATLAS COPCO CONSTRUCTION & MINING (see under Bits) CHENALORD DRILLING SUPPLIES (see under Equipment)
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SUPPLIES & SERVICES
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HIRE (DOWN-THE-HOLE HAMMERS)
For your next drilling project think Bulroc...
ATLAS COPCO CONSTRUCTION & MINING (see under Bits)
16952DrillingAd-HP:Layout 1
HYDRAULICS
Construction, Oil & Gas, Water Well, Geothermal, Seismic, Quarrying, Mining
19/1/09
12:16
HydraulicPumps (UK) Limited
Hydraulic Pumps (UK) Ltd is the United Kingdoms leading hydraulic engineering company specialising in the repair and replacement of hydraulic pumps and motors to the Drilling Industry.
FREE collect, strip, assess & quote from the UK Mainland & Ireland
www.hydraulicpumps.co.uk Freephone:- 0800 360370 Tel:- 01709 360370 Fax:- 01709 372913 Email:sales@hydraulicpumps.co.uk Hydraulic Pumps (UK) Limited
T: +44 (0)1246 544700 F: +44 (0)1246 544701 E: info@bulroc.com
www.bulroc.com
Heavyparts Hydraulics Ltd Fully Authorised Service and Repair Centre for Kawasaki Hydraulic Products
C
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BREAKTHROUGH PERFORMANCE
Halco Advert.pdf 1 27/04/2012 16:54:43
EXPERIENCE TO DRILL DEEPER... Today, Halco precision engineered DTH hammers and drill bits are used to handle the toughest jobs around the globe. With more than 60 years experience, Halco continues to offer the most reliable and durable DTH products in the industry. Whatever your next drilling application, Halco can reduce costs and give Breakthrough Performance. • Mining
• Waterwell
• Quarrying
• Geothermal
• Exploration
• Oil and Gas
• Construction
• Grade Control
All leading pump Brands catered for, full recon service, test, spare parts supply
SAUER DANFOSS
Also Specialists in hydraulic pump & motor repairs for hydrostatic transmissions
K3V; K5V PUMP
BOSCH REXROTH
LARGEST STOCKISTS OF KAWASAKI PUMP & MOTOR SPARES IN THE UK
CALL US ON 01706 356676 Sales@heavyparts.co.uk www.heavyparts.co.uk
LARGE-DIAMETER HAMMERS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole)
LOGGING EUROPEAN GEOPHYSICAL SERVICES, The Stables,Sansaw Business Park, Hadnall,Shrewsbury SY4 4AS, UK Tel: 01939-210710. Fax: 01939-210532 E-mail: eurogeophys@europeangeophysical.com www.eurpopeangeophysical.com ROBERTSON GEOLOGGING LTD. Deganwy, Conwy LL31 9PX, UK. Tel: +44 1492-582323 Fax:+44 1492 582322. E-mail: sales@geologging.com Website: http://www.geologging.com
MUDS BOODE UK LTD (See under Drilling Fluids) CLEAR SOLUTIONS INT. LTD (see under Drilling Fluids) JKS BOYLES UK LTD (see under Equipment)
Tel: +44 (0) 1422 399900 salesuk@halcorocktools.com halcorocktools.com
OIL & GAS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) CHENALORD DRILLING SUPPLIES (see under equipment) HALCO ROCK T0OLS (see under Hammers down the whole)
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SUPPLIES & SERVICES
OVERBURDEN DRILLING SYSTEMS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole)
PIPE CASING & SCREENS ATLAS COPCOCLASSIFIED CONSTRUCTION & MINING BOODE 12CM 2015 NEW_proof (see under Bits) CLEAR SOLUTIONS INT. LTD (see under Drilling Fluids) DCM DRILLQUIP LTD (see under Equipment)
waterwell systems World leading manufacturers of PVC Screen & Casing Range includes Select, Continuous Slot, Gravel Coated, Dual Wall Approved to Regulation 31 Johnson Screens Stainless Steel Screen & Casing
Drilling Consultants & Equipment Suppliers
GD Drilling Consultants are proud to announce 29/01 official representation in the UK for BSP Screen Pipes for the Oil & Gas fields / Water Well Construction & Industrial Applications. Contact: +44 (0)7736 364259 BSP Screen Pipe is pleased to welcome GD Drilling Consultants to our team. We ask that any interested party contact them with all your screen pipe needs.
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PUMPS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) JKS BOYLES UK LTD (see under Equipment) PROQUIP DIRECT LTD (see under Borehole Pumps)
REVERSE-CIRCULATION SAMPLING ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole) CHENALORD DRILLING SUPPLIES (see under Equipment) HALCO ROCK TOOLS (see under Hammers Down-The-Hole)
SHOCK ABSORBERS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole) CHENALORD DRILLING SUPPLIES (see under Equipment)
SIMULTANEOUS CASING SYSTEMS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD (see under Hammers Down-The-Hole)
Baroid Industrial Drilling Products BoreSaver Well Rehabilitation Treatments
Dale North, International Sales Manager BSP Screen pipes www. bspwellscreen.com
All you need from one source
BOODE U.K. Ltd - U.K. Brindley Road, Dodwells Bridge, Hinckley, Leics., LE10 3BY tel: +44 (0)1455 61 13 17 Email: info@boodeuk.com
If you would like to receive this newsletter, go to www.geodrillinginternational.com Register under the ‘Newsletter’ tab on the homepage. If you would like to place an advertisement, please contact Linda Winfield on+44 (0)1268 769666 linda.winfield@geodrillinginternational.com
STAINLESS SCREENS
WATER WELL EQUIPMENT
www.boode.com
GeoDrilling International’s monthly eNewsletter is delivered directly to approximately 5,000 subscribers. Our recipients include board members, middle management, contractors, engineers as well as government and utilities companies.
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) ROBERTSON GEOLOGGING LTD. Deganwy, Conwy LL31 9PX, UK. Tel: +44 1492-582323, Fax: +44 1492 582322. E-mail: sales@geologging.com Website: http://www.geologging.com STRUCTURAL SOILS LTD, The Old School, Stillhouse Lane, Bedminster, Bristol BS3 4EB, UK. Tel: +44 (0) 117 947 1000 E-mail: admin@soils.co.uk
BOODE UK LTD (see under Pipe Casing and Screens) CLEAR SOLUTIONS INT. LTD (see under Drilling Fluids) DCM DRILLQUIP LTD (see under Equipment)
BOODE b.v P.O. Box 27 NL 2760 AA Zevenhuizen Holland tel: +31 180 63 27 44 E-mail: info@boode.com
eNewsletter
SITE INVESTIGATION
• PVC casings and screens • Steel casings and screens • PEHD and Aqua 23 casings and screens • Well heads • Pumps • Drilling fluids • Grouting material • Geothermal probes
PVC Pipes approved for use in public water supplies STÜWA Konrad Stükerjürgen GmbH F: +49 5244 407-0 www.stuewa.de Hemmersweg 80 D-33397 Rietberg info@stuewa.de Our Partner in UK: Casagrande UK F: +44 1494 794990 info@casagrandeuk.com
ATLAS COPCO CONSTRUCTION & MINING (see under Bits) CHENALORD DRILLING SUPPLIES (see under Equipment) COLCRETE EURODRILL (see under Drill Pipes, Rods & Tubulars) DCM DRILLQUIP LTD (see under Equipment) PROQUIP DIRECT LTD, (See under Borehole Pumps)
WATER WELL / GEOTHERMAL DRILLING ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BULROC (UK) LTD, (See under Hammers Down-The-Hole) DCM DRILLQUIP LTD (see under Equipment) HALCO ROCK TOOLS (See under Hammers Down-The-Hole) PROQUIP DIRECT LTD, (See under Borehole Pumps) CHENALORD DRILLING SUPPLIES (see under equipment)
WELL PACKERS ATLAS COPCO CONSTRUCTION & MINING (see under Bits) BASKI PACKERS USA, www.baski.com info@baski.com Ph: +1 (303) 789-1200 Fax: +1 (303) 789-0900 INFLATABLE PACKERS INTERNATIONAL PTY LTD, Designer and Manufacturer, Perth, WA, Australia, Tel: +61 8 9204 2448, www.inflatable-packers.com PROQUIP DIRECT LTD, (See under Borehole Pumps)
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SUPPLIES & SERVICES
WELL REHABILITATION
EXPERIENCED DRILLERS Due to the expansion of our site investigation business located in Yorkshire, we require experienced drillers to operate rotary drilling rigs AND to be flexible enough to undertake other drilling disciplines such as window sampling and concrete coring when required.
WIRELINE ATLAS COPCO CONSTRUCTION & MINING (see under Bits) JKS BOYLES UK LTD (see under Equipment)
FOR SALE
Essential Professional/Technical Skills & Qualifications • Maintain NVQ Level 2 Land Drilling for rotary and CSCS. • The post holder will be expected to attend and pass internal and industry recognised external training courses. These may include, PTS, NRASWA, CCNSG, CSCS, towing license, CAT, First Aid and manual handling training. • Carry out basic maintenance and checks of plant and equipment.
Your best medium for Drilling Sector Recruitment. Use GeoDrilling International to advertise your vacancies have you also considered advertising on our popular website – www.geodrillinginternational.com at no extra cost!!!
Call Linda Winfield on Tel: +44(0)1268 769666 Fax: +44(0)1268 769665
For more details please email your CV and cover letter to rmassey@central-alliance.co.uk www.central-alliance.co.uk
e-mail: linda.winfield@ geodrillinginternational.com
SPECIALIST VEHICLE SERVICES DRILLING RIGS AND EQUIPMENT REPAIRS RIG HIRE
Rotary & Shell and Auger Restricted Access S.A. Rigs Grout mixer - Pump Units
Tel 01924 898 555 Mobile 07710 02 58 58
Dando
shell and auger rig for sale please contact steve on 07799045184 GeoNor Piston Samplers with rods and sample tubes. Hydraulic power pack, 1 ton hydraulic jack down set. On site/Lab Sample extruder, in good working order. strata777@orangehome.co.uk Phone: 07860 316523
RECRUITMENT
Endeavour Drilling Ltd are looking for Cable Percussion drillers and Assistant drillers to expand its drilling division. Please reply with C.V. to enquiries@endeavourdrilling.co.uk
Highly specialised information on every aspect of drilling
Download the new GDI App Visit us at: www.geodrillinginternational.com
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KR 909-2 Engine power: 129 kW Weight: 14 t Rod loader: MAG 2.5 Max. capacity: 6 x 3 m (ø 89 mm)
UNSTOPPABLE! KLEMM drilling equipment stands for the latest, most sophisticated drilling technologies made in Germany. Because every detail is thought through and designed in a particularly robust way our systems stand for a unique, unstoppable DYNAMIC POWER! Benefit from excellent reliability and performance with the lowest total cost of ownership (TCO). We‘ll tell you how we can make you unstoppable – give us a call: +49 2761 705-0
www.KLEMM-BOHRTECHNIK.de
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DANDO DRILLING INTERNATIONAL Made in England since 1867
DANDO IBEX •
Dynamic sampling, SPT and rotary drilling on slopes of up to 55 degrees.
•
Hydraulically deployed walkway providing a safe working area and easy access to the work bench and drill mast
•
Computer controlled autolevelling with unique climbing winch and hydraulic anchors
www.dando.co.uk/slope-drilling/ dando-ibex
MULTITEC 4000 •
Lightweight, compact multipurpose rig for geotechnical, water well, mineral and GSHP drilling
•
4-speed rotary head with hydraulic side shift
•
Duplex soil sampling and SPT combined with rotary drilling system
www.dando.co.uk/ multipurpose/multitec-4000
www.dando.co.uk info@dando.co.uk +44 (0)1903 731312 geodrilling-july-15-ibex-m4000-2.indd 1
UK Representative for
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