Outer polyurethane layer Highly abrasion-resistant and UV-stable. Long-term environmental outer barrier.
Memory-enhanced polyamide reinforcing scrim During installation, these scrims create hoop tension forces sufficient to resist long-term creep, as well as one-hundred-year storms.
Inner polyurethane layer Polyester felt inner layer Active corrosion inhibitors or biocides are pre-blended into a range of hydrophobic and thixotropic gels. These gels are factory-applied to the absorbent felt inner layer in quantities calculated to provide a service life of more than 25 years.
Corrosion protection using induced-tension polymer Corrosion protection using induced-tension polymer wraps wraps How does Envirawrap work? Hoop tension imposed in the tough, resilient outer skin forces the inner layer against the surface of the substrate, thereby causing the sealant and its corrosion inhibitor to form a close association with the substrate. The thixotropic nature of the sealant allows it to be exuded into any surface irregularities, thereby providing a seal and preventing the contact of oxygenated water against the riser, pipe or pile. Since production began in 1985, Envirawrap has reached its fifth generation of product perfection.
HEADQUARTERS Via Piave, 20/11 20071 Vermezzo con Zelo (MI) Italy T +39 02 9440501 F +39 02 9449087
USA 10617 Jefferson Chemical Rd Conroe, TX 77031 USA T +1 936 441 5678 F +1 936 756 5566
info@tesigroup.com www.tesigroup.com
UAE Plot 1K-20#W-1 | PO Box 50865 Al Hamriyah Free Zone, Sharjah - UAE T +971 6 5667114 F +971 6 5668115 M +971 543 733958
Extra-large-diameter one-piece wraps on mooring monopiles, Yanbu, Saudi Arabia, January 2016
■ One-piece construction
■ Custom-designed
■ Totally UV-stable
■ Conforms to any size and shape
■ High abrasion resistance
■ Hot work permit not required
■ Facilitates substrate inspection
■ 10-year warranty
Steel H-pile
NEW PRODUCT LINE ENVIRA-H-WRAP Since the induced-tension wraps were first developed in 1985–87, the proven advantages have always been to reduce installation to its simplest possible form. Envira-H-Wrap continues this concept by utilizing a diver-friendly, gel-impregnated infill system as an alternative to the traditional rigid polystyrene blocks.
Infill expands to pre-shaped containment Thixotropic gel Tension jacket with closure flange
ENVIRAWRAP HD (Heavy-Duty)
BARGEWRAP
■ Multilayer, heavy-duty construction
Designed to provide simple high-speed installation for a multitude of subsea and onshore applications. Installation topside, underwater or in a pipeline trench is carried out with pneumatically or hydraulically operated tools, driving a reuseable closure caliper. Typical installation times for pipe diameters of 200–610 mm are 8 minutes per joint, depending on diameter. Cold-applied – no hot work permit required. Does not require shotblast substrate preparation.
Envirawrap HD is the heavy-duty, multi-scrim version of the STD. It is specifically designed to provide protection to offshore oil and gas risers or inshore applications subject to external impact damage.
■ Easy installation As with the STD, installation has been reduced to its simplest possible form, saving hours of diver and rigging time. Does not require substrate shotblast preparation.
■ Custom-made for tough conditions Supplied in interlocking modular lengths. Polyurethane provides the highest abrasion resistance.
■ Active protection
ENVIRAWRAP STD (Standard) ■ Easy one-piece installation
■ Corrosion rate monitoring
Full-length Geon™ closure flanges are factory-fitted with corrosion-resistant self-threading fasteners.
May be fitted with weight loss coupons or remote corrosion rate monitoring.
■ Minimal surface preparation
■ Custom-made to fit
Corrosion-inhibited gel flows to totally encapsulate and protect the substrate without the use of primers, fillers or tapes. The mechanical removal of marine growth and delaminated iron oxide is all that is necessary.
Suits any diameter from 50 mm to 3 meters. May be interlocked to accommodate any required protected length.
■ Tried-and-true technology
Withstands the degradative influences of environmental UV, ozone and temperature variations. Highly abrasion- and impact-resistant.
20+ years of providing inshore splash zone and underwater corrosion protection for piles, pipelines and risers. Projects have been conducted from northern waters to the tropics.
■ Environmentally safe Residual elasticity within the multilayer fabric safely maintains the wrap in position and prevents leaching of the corrosion inhibitor into the environment.
■ Built for the toughest environments
■ Inspections made easy The wrap can easily be opened and resealed to allow for substrate inspection.
■ Repairs In the unlikely event of exterior damage, the wrap can be repaired by fitting another wrap over the damaged area.
Available with unique anti-fouling outer layer. Provides active protection with environmentally safe corrosion inhibitors. Custom-built white wraps for heat-reflecting surface
■ Easy installation
■ Extreme performance Independently tested to operate in the temperature range of up to 120°C. Low-temperature versions are available for above-ground applications where ambient temperatures can be as low as –40°C.
■ Custom applications Bargewrap provides an ultrafast alternative field joint coating solution on the lay barge and tie-in coating stations, or it may be applied subsea by divers, when used as a coating repair method. High-temperature, hydrophobic corrosion-inhibiting gel prevents water entrapment during underwater applications.
■ Perfect fit Closure around the joint is via a thermally formed flange, designed to follow field joint contours. Hoop tension induced into the fabric during installation locks the system in place.
Steel H-pile
NEW PRODUCT LINE ENVIRA-H-WRAP Since the induced-tension wraps were first developed in 1985–87, the proven advantages have always been to reduce installation to its simplest possible form. Envira-H-Wrap continues this concept by utilizing a diver-friendly, gel-impregnated infill system as an alternative to the traditional rigid polystyrene blocks.
Infill expands to pre-shaped containment Thixotropic gel Tension jacket with closure flange
ENVIRAWRAP HD (Heavy-Duty)
BARGEWRAP
■ Multilayer, heavy-duty construction
Designed to provide simple high-speed installation for a multitude of subsea and onshore applications. Installation topside, underwater or in a pipeline trench is carried out with pneumatically or hydraulically operated tools, driving a reuseable closure caliper. Typical installation times for pipe diameters of 200–610 mm are 8 minutes per joint, depending on diameter. Cold-applied – no hot work permit required. Does not require shotblast substrate preparation.
Envirawrap HD is the heavy-duty, multi-scrim version of the STD. It is specifically designed to provide protection to offshore oil and gas risers or inshore applications subject to external impact damage.
■ Easy installation As with the STD, installation has been reduced to its simplest possible form, saving hours of diver and rigging time. Does not require substrate shotblast preparation.
■ Custom-made for tough conditions Supplied in interlocking modular lengths. Polyurethane provides the highest abrasion resistance.
■ Active protection
ENVIRAWRAP STD (Standard) ■ Easy one-piece installation
■ Corrosion rate monitoring
Full-length Geon™ closure flanges are factory-fitted with corrosion-resistant self-threading fasteners.
May be fitted with weight loss coupons or remote corrosion rate monitoring.
■ Minimal surface preparation
■ Custom-made to fit
Corrosion-inhibited gel flows to totally encapsulate and protect the substrate without the use of primers, fillers or tapes. The mechanical removal of marine growth and delaminated iron oxide is all that is necessary.
Suits any diameter from 50 mm to 3 meters. May be interlocked to accommodate any required protected length.
■ Tried-and-true technology
Withstands the degradative influences of environmental UV, ozone and temperature variations. Highly abrasion- and impact-resistant.
20+ years of providing inshore splash zone and underwater corrosion protection for piles, pipelines and risers. Projects have been conducted from northern waters to the tropics.
■ Environmentally safe Residual elasticity within the multilayer fabric safely maintains the wrap in position and prevents leaching of the corrosion inhibitor into the environment.
■ Built for the toughest environments
■ Inspections made easy The wrap can easily be opened and resealed to allow for substrate inspection.
■ Repairs In the unlikely event of exterior damage, the wrap can be repaired by fitting another wrap over the damaged area.
Available with unique anti-fouling outer layer. Provides active protection with environmentally safe corrosion inhibitors. Custom-built white wraps for heat-reflecting surface
■ Easy installation
■ Extreme performance Independently tested to operate in the temperature range of up to 120°C. Low-temperature versions are available for above-ground applications where ambient temperatures can be as low as –40°C.
■ Custom applications Bargewrap provides an ultrafast alternative field joint coating solution on the lay barge and tie-in coating stations, or it may be applied subsea by divers, when used as a coating repair method. High-temperature, hydrophobic corrosion-inhibiting gel prevents water entrapment during underwater applications.
■ Perfect fit Closure around the joint is via a thermally formed flange, designed to follow field joint contours. Hoop tension induced into the fabric during installation locks the system in place.
Case studies Turning dolphin
Preparation: The wraps have been removed from the shipping crate, factory-gelled, and are ready for installation.
Installation: Diver using compressed air closure tool in final stages of installation. Note, the design permits installation in seas where swells can exceed one meter.
Jetty
The Envirawrap is prepared ready for lifting into place via lifting lugs bonded to the outer surface layer.
In operations such as these, it is common to work from the underside of the deck to the lower splash zone.
LaGuardia Airport
Runway extension project was implemented to improve runway safety. The FAA required an additional 240 24” diameter piles, all protected with HD induced-hoop tension designed wrap. Corrosion Control Inc. and Strange Corrosion provided design, inspection and training services, as required by The Port Authority of NY & NJ.
Wraps are interconnected to provide any length of protection required by prevailing conditions.
Induced-tension wrap systems provide an effective retrofit method of corrosion or environmental protection of risers, piles, and certain specific sections of subsea pipe work.
PROJECTS 1st generation: Armawrap (manufactured by NICC, U.K.) 1985 1987 1988 1990
Ju’aymah jetty, Saudi Arabia: Preventing marine borer attack in concrete The Port Authority of New York & New Jersey: Protecting piles supporting runways at LaGuardia Airport Shell: Protecting offshore, underwater mechanical conductor joints BP, Total, Shell: Retrofitting offshore risers in the North Sea
2nd generation: Retrowrap (manufactured by NICC, U.K. and Corrosion Control International, U.S.) 1995 First utilization of textile-reinforced polyurethane composite in the U.S.
3rd generation: Retrowrap 2 (manufactured by Corrosion Control International, U.S.) 1996 Development of closure flange 1996 General Dynamics: Protecting piles in Groton, Connecticut 2000–2010 Petrotrin: Multiple projects involving wellhead support piles 2001 Autopistas de Puerto Rico: Protecting piles supporting the Teodoro Moscoso Bridge in San Juan, Puerto Rico 2003 Louisiana DOT: Protecting piles supporting Lake Pontchartrain Causeway, Louisiana 2004 Kuwait National Petroleum Company: Repairing failed coating on steel piles supporting new oil pier in Kuwait 2006 Kuwait National Petroleum Company: Repairing piles supporting North Pier 2006 Alcoa: Splash zone protection jackets for jetty, Jamaica 2007 The Kuwait Olefins Company: Splash zone protection 2007 Dow Chemicals: Protecting steel piles in Texas 2008 The Port Authority of New York & New Jersey: Third phase of protecting piles supporting runways at LaGuardia 2008 Atlantis: Protection of offshore conductors in Dubai 2009 ConocoPhillips: Repairing steel piles in Vietnam 2010 Port of Corpus Christi, Texas: Splash zone protection of turning dolphins 2011 Brisbane City Council: Holman Street jetty in Brisbane, Australia
4th generation: Envirawrap and derivatives (produced in the U.S. by licensed manufacturers) 2013 Addressing both inshore and offshore requirements by providing fixed or adjustable closure flanges, multiple closing fasteners and using latest developments in molecular polymeric engineering to provide the ultimate efficiency through speed of installation with long-term UV and environmental service enhancements. Designed to accommodate steel (circular, hex or H configuration), concrete (circular or square) and timber. 2013 Fluor, Mexico: Splash zone protection of jetty piles 2014 Motiva/Shell, Rhode Island: Splash zone protection of jetty piles (with Corrosion Control Inc., Georgia) 2014 Dow Chemicals, Freeport, Texas: Splash zone protection of jetty piles (with Corrosion Control Inc., Georgia) 2014 BP, Gulf of Mexico: Heavy-duty protection (HD) of riser field joints (with Corrosion Control Inc., Georgia) 2015 Costa Rica: Splash zone protection of jetty piles (with Coatsol Ltd, U.K.) 2016 SABIC, Saudi Arabia: Splash zone protection of jetty piles
Outer polyurethane layer Highly abrasion-resistant and UV-stable. Long-term environmental outer barrier.
Memory-enhanced polyamide reinforcing scrim During installation, these scrims create hoop tension forces sufficient to resist long-term creep, as well as one-hundred-year storms.
Inner polyurethane layer Polyester felt inner layer Active corrosion inhibitors or biocides are pre-blended into a range of hydrophobic and thixotropic gels. These gels are factory-applied to the absorbent felt inner layer in quantities calculated to provide a service life of more than 25 years.
Corrosion protection using induced-tension polymer Corrosion protection using induced-tension polymer wraps wraps How does Envirawrap work? Hoop tension imposed in the tough, resilient outer skin forces the inner layer against the surface of the substrate, thereby causing the sealant and its corrosion inhibitor to form a close association with the substrate. The thixotropic nature of the sealant allows it to be exuded into any surface irregularities, thereby providing a seal and preventing the contact of oxygenated water against the riser, pipe or pile. Since production began in 1985, Envirawrap has reached its fifth generation of product perfection.
HEADQUARTERS Via Piave, 20/11 20071 Vermezzo con Zelo (MI) Italy T +39 02 9440501 F +39 02 9449087
USA 10617 Jefferson Chemical Rd Conroe, TX 77031 USA T +1 936 441 5678 F +1 936 756 5566
info@tesigroup.com www.tesigroup.com
UAE Plot 1K-20#W-1 | PO Box 50865 Al Hamriyah Free Zone, Sharjah - UAE T +971 6 5667114 F +971 6 5668115 M +971 543 733958
Extra-large-diameter one-piece wraps on mooring monopiles, Yanbu, Saudi Arabia, January 2016
■ One-piece construction
■ Custom-designed
■ Totally UV-stable
■ Conforms to any size and shape
■ High abrasion resistance
■ Hot work permit not required
■ Facilitates substrate inspection
■ 10-year warranty