SEG LA RAC Newsletter Vol. 2, N°. 2 by seglaracnewsletter

SEG LA RAC Newsletter

July 2021 • Vol. 2, Nº. 2

SEG LA RAC Newsletter

July 2021 • Vol. 2, Nº. 2 SEG Latin America Regional Advisory Committee https://seg.org/About-SEG/Governance/Committees/ Latin-America-Regional-Affairs-Advisory-Comittee

In this Issue: Chair letter SEG Latin America Regional Advisory Committee - Increasing the presence in Latin America

3 Connect with us through our social networks :

Past Chair Letter What comes next for Latin American exploration geophysics after COVID-19 pandemic

SEG LARAC Vice Chair Election

instagram.com/seg_la_rac/ facebook.com/SEGLARAC/

LARAC Activities: News Chávez-Pérez approved as assistant editor of Geophysics

linkedin.com/company/seg/

Recognition to Vinicius Antunes as video editor volunteer support Welcome to new SEG LARAC members

facebook.com/SEGeophysicists/

Interview

Geophysics for Today and Tomorrow

Webinars

Calls

LARAC Activities Calendar

LARAC Technical Corner The importance of seismic anisotropy determination in an Unconventional reservoir: An example from the Neuquina Basin, Argentina

twitter.com/seg_org

instagram.com/segeophysicists/ youtube.com/channel/ UCoiDplSjsNwWoB2Mu24AcOA Newsletter organization Editorial Team Itzamna Gonzalez Juarez

Editor

Isabela Dantas de Albuquerque

Editor

Rocio Bernal Olaya

Co-editor

Karla Paola Bugarin Velazquez

Co-editor

Newsletter support Ana Curcio

Affiliated Societies Activities

Terrell Dhanpaul

Student Chapters Activities

Sergio Chavez

SEG | AAPG IMAGE

Upcoming Events

Chair letter SEG Latin America Regional Advisory Committee Increasing our presence in Latin America By Ana Curcio Chair of the SEG LARAC 2019-present During the March 2021 – July 2021 period the Latin

American

Regional

Advisory

library.seg.org/doi/pdf/10.1190/tle40020086.1, 2021),

Committee

which are Innvotation, Digitalization, Preservation,

(LARAC), continued working according to the SEG

Collaboration, Representation and Contribution

Strategic Pillars to accelerate the Geophysical Innova-

The LARAC contribution to those pillars was done

tion (Maurice Nessim, SEG President, https://

through the following activities:

1. Institutional Subcommittee  Vice Chair election promotion and candidates selection  IMAGE meeting LA luncheon topics determination  Contribution with the difusion of the new SEG programs:  ‘Sustainability Atlas’, Maria A. Capello, Anna Shaughnessy, and Emer Caslin

https://library.seg.org/doi/full/10.1190/tle40010010.1  ‘Member in Transition SEG Program, https://seg.org/Members-in-Transition  Working on improving communication with other committees.  Creation of a Task Force that has the objective of increasing the SEG presence in Latin

America. The task Force, led by Gustavo Carstens, Chair of the SEG Council, with the collaboration of 6 LARAC members: Sven Treitel, Paul Cunningham, Sergio Chavez, Sean Cardinez, Terrell Dhanpaul and Ana Curcio. This group will cooperate with Mayra Gonzalez, SEG Business Development Manager to grow the activitiy and members in the Region.

2. Technical Subcommittee  Organization of a Geothermal Webpanel  Technical Webinars, in collaboration with Sister Societies:  ‘Digital Architecture of the Subsurface’, Humberto Salazar Soto, Mexico.  ‘Sunset and Sunrise’, Victor Young On, Trinidad and Tobago.  ‘Sustainability Atlas’, Maria A. Capello, Anna Shaughnessy, and Emer Caslin,

https://library.seg.org/doi/full/10.1190/tle40010010.1  ‘Member in Transition SEG Program’, https://seg.org/Members-in-Transition

Chair letter 3. Students Subcommittee  Organization of the Second Latin American Virtual Students conference  My Path to a Career in Geophysics Webinar:  ‘My professional career… a reflection of the development of geophysics in Venezuela,

Jose Regueiro, Venezuela’  Continue contact with SEG Student Chapers, who also were invited to the April committee

meeting to present their activities, thougths and brainstorm ideas to facilitate networking among themselves and with the World of applied Geophysics  Collaboration with the Women Network Student Chapters in LA.

4. Volunteering Subcommittee  Worked together with the Translations committee in the organization of the translation to spa-

nish of ‘Digital Imaging and Deconvolution: The ABCs of Seismic Exploration and Processing”

written

Enders

Robinson

and

Sven

Treitel,

http://

dx.doi.org/10.1190/1.9781560801610  Kick off of the Translations project

The committee will continue to add valuable content for our regional members and others around the

husiasm to working together with you to achieve our goals.

globe through technical webinars and webinars that are

If you would like to help us grow, develop pro-

aimed to highlight the career challenges and excite-

grams throughout the region, and if you feel there are

ment by some of the region’s leading professionals.

specific partnerships we should be undertaking, please

We will continue to expand our impact throughout the

send an email to mgonzalez@seg.org. I speak for the

región by working more closely with professionals of

entire committee when I say, I hope you like what we

regional societies, and by developing with them

are doing, and decide to join us in our efforts. I look

meaningful activities The activities of the committee

forward to great things from this committee to help

continue to grow and we are looking forward with ent-

best represent this amazing region.

Ana Curcio Geophysical Consultant Proingeo SA Current Chair, SEG Latin America Regional Advisory Committee, and SEG District 6 Representative (Latin America)

Past Chair letter What comes next for Latin American exploration geophysics after COVID-19 pandemic Sergio Chávez-Pérez, LARAC Past Chair Mexican Petroleum Institute (IMP), Mexico City, Mexico

As a former (USA-Mexico) Fulbright scholar, last year I wrote a rather brief note on “What oil and gas

year that we have had to do as much as possible with limited home office resources.

exploration research after this pandemic could look

Concerning oil and gas exploration research,

like” (Chávez-Pérez, 2020). In retrospective, what a

we all are very concerned about providing, maintain-

naïve, perplexed, and confused feelings I had by

ing, and communicating with the best possible sup-

then. Weeks before the coronavirus outbreak, the

ply of practitioners, teachers, and applied research

Latin American oil and gas business world had al-

geophysicists, but we do not yet know how oil and

ready changed dramatically due to extremely low oil,

gas exploration practice, teaching, and research, nor

gas, and commodity prices. This got even much

of any other kind, could look like after these extreme

worse with the COVID-19 pandemic. In a nutshell,

circumstances and highly uncertain times.

everything changed and keeps changing. Nowadays,

As I described after my 2015 SEG Honorary

things have been getting even much more complicat-

Lecturer tour in Latin America (Chávez-Pérez,

ed and are still rather uncertain, despite international

2016): “Besides the food, coffee, and great drinks

vaccination efforts and public awareness about the

you can enjoy pretty much everywhere in the region,

pandemic.

coupled with the fascinating views and interaction

The problem is that my naïve, perplexed, and

with the locals while traveling, one easily becomes

confused feelings prevail. As, like most people I

impressed with the hunger for knowledge shown by

know, there are lots of times that I do not know

most students and young professionals. Is this due to

where things are going and what I should do to defy

the diversity of the people, their solid educational

my pandemic, professional, and personal demons,

background, and the highly heterogeneous cultures

and how to help others defy theirs.

found in these countries? I hope I could answer these

I am a research geophysicist working in Mexi-

questions, but I now understand the reason why most

co City for the Mexican government, past chair of

visitors and professionals become fascinated and fall

the SEG LARAC (SEG Latin American Regional

in love with these countries: it is due in no small part

Advisory Committee), and current chair of the SEG

to their educated, dedicated, motivated, and talented

Research Committee. My field of specialty is explo-

people.”

ration seismology. Working from home is not new

From my humble perspective, what we do

for me nor for most of my foreign and local peers. It

need for the coming years is plenty of perseverance,

does work fine when it comes to supervising, teach-

ingenuity, and guts to withstand all the stress, anxie-

ing, training, and providing professional service

ty, sadness, and mental health issues we have under-

(through peer review, webinars, and virtual discus-

gone so far. Our main weapon will be to carefully

sions and lectures), but it has now been over one

nurture ourselves, to be able to help our educated,

Past Chair letter dedicated, motivated, and talented people.

on-going pandemic, we are aware that the path will be

As BP (2021) launches its 70th Statistical Re-

arduous and it will require all of us being community-

view of World Energy, the company has also taken a

minded” (Novelli et al., 2021). Thus, let us be Latin

look at five of the biggest shocks to the energy system

American community-minded and help each other. It

over the past seven decades. It is relatively easy to con-

should help our survival. Amen.

clude that the combination of the current pandemic with ongoing carbon neutrality processes and policies

References:

will become shock to the system number 6 within a

BP, 2021, Shocks to the system. [Available at: https://www.bp.com/en/global/corporate/news-andinsights/reimagining-energy/five-shocks-to-the-energysystem-over-past-70-years.html] (Release date: 1 July 2021)

few more years. Nowadays, there is plenty of technical, and even more not so technical, literature on the topic in vogue: energy transition (e.g., França et al., 2020). We all have personal takes on science and society. Most people would agree that Latin America needs reliable energy infrastructure, not rich-world hypocrisy. Speaking as advocates for sustainability, many of us believe fossil fuels are still necessary (e.g., Ramachandran, 2021) and will be in high demand for the next decades, particularly for natural gas. However, this will have to be carried out in conjunction with carbon neutrality policies and processes. It is up to us, SEG Latin American members, to help with educational support, professional development, and professional service to sustain our local and international communities. In addition, we have to motivate not only ourselves, but students, and young and seasoned professionals as well, to defy the typically daunting realities in every corner of Latin America. And we must not forget that our talents and knowledge extend to other energy related matters including geothermal, carbon sequestration, rare-earth mineral mining, and geotechnical for offshore wind infrastructure. Finally, let me quote a rather recent paper as an alternative to conclusion of this note: “While every

Chávez-Pérez, S., 2016, Professional development: Communicating exploration-seismology fundamentals in Latin America, The Leading Edge 35, 378-379. [Available at: https://library.seg.org/doi/10.1190/ tle35040378.1] Chávez-Pérez, S., 2020, What oil and gas exploration research after this pandemic could look like [Available at: https://comexus.wixsite.com/covid-19/oil-and-gasexploration-research]. França, G., D. Freire, and U. Mignozzetti, 2020, Natural Resources and Policy Choices in Latin America, Supported and published by Regional Programme Energy Security and Climate Change in Latin America (ELKA) of the Konrad Adenauer Foundation (KAS). São Paulo, SP – Brazil. [Available at: https://www.kas.de/ documents/273477/11528153/ Natural+Resources+and+Policy+Choices+in+Latin+America.pdf /01c5ad74-1d04-a0f7-1fef-19449cb189d2? version=1.0&t=1612290449786]. Novelli, G., M. Biancolella, R. Mehrian-Shai, V. Luigi Colona, A. F. Brito, N.D. Grubaugh, V. Vasiliou, L. Luzzatto, and J.K.V. Reichardt, 2021, COVID-19 one year into the pandemic: from genetics and genomics to therapy, vaccination, and policy. Human Genomics 15, 27. (Published: 10 May 2021) [Available at: https:// doi.org/10.1186/s40246-021-00326-3 ] Ramachandran, B., 2021, Blanket bans on fossil-fuel funds will entrench poverty, Nature 592, 489. (Published: 20 April 2021) [Available at: https://www.nature.com/ articles/d41586-021-01020-z]

day we acquire more and more tools to deal with the

Sergio Chávez-Pérez Mexican Petroleum Institute (IMP), Mexico City, Mexico Email: sergio.chavezp@gmail.com

SEG LARAC Vice Chair Election Latin American Regional Advisory Committee Chair and Vice Chair Election LARAC, Institutional subcommittee

The Latin American Regional Advisory Committee (LARAC) is delighted to announce the first LARAC

interruption. 

Have shown commitment to LARAC and be

Chair and Vice Chair election for the period November

able to provide continuity of the short, medium

2021-November2023. The base of the election was

and long-term objectives as well as providing

determined by the LARAC Institutional subcommittee,

new ideas and integrate them into what we want

with the objective of have democratic procedures sup-

to achieve as a region and, by extension, the par-

ported by the SEG standards (https://seg.org/About-

ent SEG mandates.

SEG/Governance/Policies-and-Procedures).

b) Once the candidates are confirmed, the voting

LARAC is seeking committee nominations for Chair

procedure is:

and Vice-Chair positions. Self-nominations are wel-



The votes will be cast electronically.

come. Those interested should submit a short biog-



The voting will be performed only once.

raphy, and position statement that says why you would



The votes will be anonymous for LARAC mem-

like to run for chair or Vice-Chair and any items you

bers; i.e., only the SEG Staff liaison will manage

would like to champion while in LARAC leadership.

the vote and report results.

The Voting period will be 30 July to 31 August 2021



All LARAC members can vote (including student members).

Vice-Chair Election procedures a) The candidates must be a LARAC Member and

c) In case of a tie, the past Chairs will elect the candidate to assume the Vice-Chair role.

have an understanding of the structure, objec-



tives and operation of LARAC. Suggested can-

If you have any suggestion or question related to candi-

didates have to:

dates and if you want to join LARAC please write to

Belong to LARAC for at least 2 years without

Mayra Gonzalez magonzalez@seg.org

News

Sergio Chávez-Pérez approved as assistant editor of Geophysics

By mid-July, Sergio Chávez-Pérez was invited to

(UNAM), both in Mexico City. He became an SEG

serve as assistant editor of Geophysics. Chávez-Pérez

(Society of Exploration Geophysicists) member in

will begin that role on 1 August 2021. He has served

1981 during his undergraduate years in Mexico City,

on the Geophysics editorial team since 2003, as asso-

was a candidate for Vice-President in 2007, and cur-

ciate editor for Case Histories (since 2003) and Inter-

rently serves also as reviewer for Geophysics and

pretation Methods (since 2007). Chávez-Pérez is a

Interpretation, member of the Latin America Adviso-

research geophysicist working with the Mexican Pe-

ry (past Chair), Research (Chair), and Translations

troleum Institute (IMP), and an adjunct professor at

committees (past Chair), and reviewer, and session &

the National Autonomous University of Mexico

workshop organizer during SEG Annual Meetings.

Recognition to Vinicius Antunes as video editor volunteer support Vinicius Antunes, MSc. in Exploratory Geology Challenge from PDAC, where university’s team (2020), Federal University of Paraná, Brazil where reached the final phase by successfully recommending characterized the magnetic and radiometric responses of targets for exploration in British Columbia from analyzalkalic-carbonatitic rocks in south Brazil to assist in the ing a huge public dataset. His interests are potential phosphate and rare earth elements prospects in the area. field and radiometric interpretation alongside magnetic After graduating in Geology (2017) he worked at the modeling for geological mapping and mineral exploraGeological Survey of Paraná, Brazil, developing geo- tion. Vinicius is studying Programming and Data Scilogical maps and evaluating environmental licenses. ence since these topics are strongly related to Geology Vinicius also participated in the 2021 Frank Arnott and Geophysics nowadays.

News Welcome to new SEG LARAC members April to July 2021

The Latin American Regional Advisory Committee is very pleasure to inform about 7 new members, period April 2021- July 2021:

SEG SC WN Member 

Dr. Juan Soldo, Geophysical Manager, Pluspetrol, Argentina



Christy Nandlal, Chief Field Geophysicist, Marine Industry, Trinidad & Tobago



Mario Rivera Florez, Geologist, Universidad Industrial de Santander, Colombia



Dr. Óscar M. Romero de la Cruz, UANL, México



Dr. Sven Treitel, Please visit https:// wiki.seg.org/wiki/Sven_Treitel; Please watch https://youtu.be/Pg5BDefeUDk

María Fernanda Rueda Solano, Geologist, Universidad Industrial de Santander, Colombia



Mrs. Sofia Pannunzio, Geology student, Universidad de Buenos Aires, Argentina.

We hope the best in this new Experience and we hope to work very hard together to Connect the world of Applied Geophysics!!

Congratulations on SEG LARAC members graduations April to July 2021

The Latin American Regional Advisory Committee congratulates the recent graduates: 



Natalí Alejandra Barría Bachelor's Degree in Geology from the Universidad Nacional de Córdoba, Argentina

Lucas Guimarães Pereira Monteiro, Bachelor's Degree in Geology from the Universidade do Estado do Rio de Janeiro, Brazil

We hope the best in this new phase of your careers!!

Gastón Tommasone Bachelor's Degree in Geology from the Universidad Nacional de Córdoba, Argentina

instagram.com/seg_la_rac/ 9



facebook.com/SEGLARAC/

Interview Webinar: My professional career… a reflection of the development of geophysics in Venezuela José Regueiro the difficult decisions that he had to make during his career, and how these were part of his professional and personal learning process. Below the interview to José: - Natalí: What have been the challenges that you have faced through your professional experience? - José: The hardest challenges were make decisions. I consider that I had to take very easy decisions like accept scholarships and after don't have any problems with money. I had very good friends and advisors, so the biggest challenge was to overcome those decisions. - Natalí: In several parts of your presentation, you said that you had to make important decisions. What José Regueiro is a Ph.D. in Geophysics (1984) graduated from the University of Colorado, where he

variables do you consider that have to be taken into account when you make professional decisions?

previously obtained his B.Sc. (1978) and M.Sc.

- José: Every time you make a decision, you have

(1980) in Geophysical Engineering. José is specialist

to think about your near future. You have to define

in Seismic Technologies, AVO (Amplitude vs

your dreams and your goals. Once you make a

Offset), Seismic Inversion, Seismic Attributes,

decision you have to see how your goals are

Multicomponent Seismics and Integrated Seismic

achieved. I did things that I liked to do! Be happy!

Reservoir Characterization. Currently, he is Retired

Many people can't be happy because of circumstances

Full Professor in Applied Seismic Methods of the

but if you can manage your decisions of your career

Department of Earth Sciences of Simón Bolivar

and your future, the goal will make you a better and

University, President of Geociencias Virtuales C.A.

happier person. And whatever you do, do it happy,

(Consulting

that's the main thing.

and

Educational

Company)

and

International Instructor (Seismic Methodologies). The event was held the 29 of April and the talk

- Natalí: What are your best professional qualities and shortcomings?

was focused on motivating young people, students,

José: I would say perseverance even intuition and

and professionals within our profession so that they

creativity. Inventing things. Look for challenges. Do

are encouraged to make the decisions they deem

what you think is right and keep trying.

appropriate, which will lead them toward success in

- Natalí: What have you learned from your

their career and happiness at work. During the

professional/academic mistakes?

webinar, José told us about his past experiences and

- José: A lot of things. In my case it was not easy

Interview cause I had to share the hard work of the academy

Sometimes you don't get a job doing what you like,

with management projects related to the oil industry

so make a decision. If you are doing a job you don't

in parallel. For many years I dedicated to the

like, think about how to get out of it, how to diversify

students. If I had to go back in time, I would dedicate

it, how to make it a place you like. If it doesn't satisfy

much effort to the students because I had to make

you, change it to make it pleasant or look for

decisions on the time that I spend teaching and the

something else. Like I said before, we still have years

time of all other things/ideas to improve the

of oil but you can choose other areas that do not have

Engineering Geophysics Department.

much competition and follow your feelings.

- Natalí: What advice would you give to young professionals? - José: If you are a young professional at the end

“Value happiness above any other things”

try to see what you like to do and get a job.

José Regueiro

Free conference for undergraduate and graduate students in Latin American. More information on how to submit and who can participate:

Geophysics for Today and Tomorrow Digital Architecture of the Subsurface Humberto Salazar Soto, Mexico The Digital Architecture of the Subsoil refers to the art and technique of projecting, designing, and building digital models of the subsurface, which allow efficient and sustainable exploitation. It is to build a model that transforms data into information and information into knowledge for the decision -making process in the value chain of the oil business. For this purpose, the integration, classification, visualization, analysis, and decision-making based on the information is vital for the construction of the digital model that allows us to make the correct business decisions. In this webinar, Humberto presented in a simple way the procedures to be carried out for the construction of such a model. More information: https://seg.org/Events/SEG-Live/session/ digital-architecture-of-the-subsurface

Members in Transition, the new SEG program Maria Angela Capello and Lorenzo Izarra Through the Members in Transition (MiT) program, SEG provides support to its members who are in the in-between stages of their careers. A member in transition is a professional in geophysics who is looking for a new job or a change in her type of work. MiT aims to support recent graduates who are looking for their first job, those who have left the corporate work environment voluntarily or forcibly, to seek other opportunities, or who want to start their own entrepreneurship. Likewise, we want to support the changes implied by the energy transition, which often leads to changes in roles, focus, or activities. The aim is to support the employability of geophysicists in the world of work, which is constantly being renewed. What skills are needed? How can you succeed in the transition? These are the basics of the MiT program, which were explained in greater detail in the webinar. More information: https://seg.org/Events/SEG-Live/session/mit-the-new-seg-program

Webinars SEG Contribution to Trinidad & Tobago Sunset and Sunrise Victor Young On, Trinidad y Tobago Historically the SEG via its normal activities have

worked for for Dominion Oil in Trinidad in the

been contributing to the E&P effort in Trinidad since

1950s. Others are Kurt Marfurt and Alistair Brown.

the 1930s. Whenever geoscientists meet and talk

New collaborations may be possible in the form of

technologies and learnings are being transferred. We

joint

in T&T are certainly grateful to the SEG for their

applications in the region.

continued contribution. They provide the forum for continued innovation, leading edge technology (e.g. independent simultaneous source marine seismic acquisition applied by bpTT offshore T&T east coast) and new ideas for interpreting and resolving our complex geology that lead to new discoveries. For the SEG, opportunities for collaboration in the region are plentiful. Fruitful collaborations have come with the Geological Society of Trinidad and Tobago. Traditionally, the SEG and GSTT have collaborated on Continuing Education Courses and Schools since the 1980s and also the with SEG Distinguished Lecture Series. Bob Sheriff, who wrote the Encyclopedic Dictionary of Exploration Geophysics, was one of the notable ones. He had

Conferences

promote

Geophysics

SEG may also explore collaborations with active Geological Societies as these provide opportunities for the application of geophysics. The Caribbean Geological Conference occurs every 3-5 years. The 21 st Caribbean Geological Conference is being hosted by the Geological Society of Jamaica this year possibly. SEG assistance in the form of bursaries and scholarships for University Students and Career Guidance Information to high schools are needed as government assistance are no longer available through the GATE program. SEG may also develop fruitful collaborations through the UWI Seismic Research Unit, which is involved in monitoring volcanoes and earthquakes throughout the Caribbean.

Calls LARAC Technical Corner - Call for Content Hi Everyone, Following up on our last call for content, we are pleased to announce that our very own LARAC chairperson, Miss Ana Curcio has the honour for being the author of the first article for the technical showcase of our newsletter in this edition. As you would notice, we have recently renamed it the “LARAC Technical Corner or LTC”. Just to reiterate, this special section of our quarterly newsletter is dedicated to our regional professional community. We are welcoming articles, reviews and opinions on a topic of current interest specifically with a Latin American focus. Your contributions will be informally reviewed by the editorial team of the SEG LARAC Newsletter prior to its publication. In addition, the LTC will provide authors an opportunity to showcase any technical news or updates on current research, ongoing projects within their university, company or their respective country. The objective of the column is to provide a synopsis of your project or research study with some preliminary results. The submission format is an article of no more than 500 words along with a maximum of two

(2) pictures, figures or charts that are fully captioned. A short biography and picture of the author is required. We fervently wish that having seen the fruition of the first published article for the LTC that it encourages others to take advantage of this wonderful opportunity to share their work and have it available to our readership, albeit in an abridged version. We encourage you to utilize this avenue specifically for our region and take advantage of the “publicity”. We look forward to reading your future submissions. Please email your contributions to Terrell Dhanpaul and Ana Curcio and copy Mayra Gonzalez, our Director of Business Development. Just a reminder, our newsletter is published on 1 April, 1 August, and 1 December with all data submitted no later than the 10th of the previous month. So, please get in touch and submit your content for the next newsletter by 10 November 2021.

Regards, Terrell Dhanpaul Technical Sub-Committee SEG LARAC

Call for Volunteers – Translations New opportunity to contribute with the Latin American community! SEG LARAC is looking for volunteers to translate the “Digital Imaging and Deconvolution: The ABCs of Seismic Exploration and Processing” book. Interested parties should be fluent in English and Spanish, have Geoscience background, be able to invest 2 hours/week and commit for 6-9 months to work in teams. Certificates of contribution will granted to our volunteers. For more information or to sign up for this task please contact us at lastudent.conference@seg.org.

Latin American RAC Activities Calendar Activities 7

SEG Latin America RAC July Meeting Webinars Geophysics for Today and Tomorrow - Professional Edition

July

Exploring the Ortoire Block, Onshore SE Trinidad with Xavier Moonan, Senior Geoscientist at Touchstone Exploration in Trinidad & Tobago

Vice-Chair election

SEG Latin America RAC August Meeting

T&T Workshop Webinars Geophysics for Today and Tomorrow - Student Edition

Aug

Carreer in Geopshyics with Paul Cunhingham, Founder and Managing Partner at Amigos Energy Advisors, LLC, SEG Board member and SBGf member

SEG Latin America RAC September Meeting Honorary Lecturer Interview

22 Sep

The new paradigms in seismic inversion, 1st part Dr. Miguel Bosch, CEO at Info Geosciences Technology and Services

26-30 91° SEG AM 28

SEG LA Luncheon - Canceled (restart in 2022)

SEG Latin America RAC October Meeting

SEG AM lessons learned

Oct

Webinars Geophysics for Today and Tomorrow - Professional Edition, 21

Renewable Energies Speaker to be confirmed

1 9,10 15 Nov

SEG Latin America RAC November Meeting 2nd Virtual Student Conference Lessons learned SVC Webinar—Topic: Exploration in Bolivia , Daniel Peccuch

Honorary Lecturer

Vice-Chair Assumption

LARAC Technical Corner The importance of seismic anisotropy determination in an Unconventional reservoir: An example from the Neuquina Basin, Argentina By Ana Curcio, Proingeo SA 1. Motivation The characterization of seismic anisotropy is crucial for the exploration and development of unconventional reservoirs. It contributes to the reduction of risk due to the mis-positioning of seismic reflectors and angles, as well as, amplitude distortion from the target reservoir (amplitude versus offset or AVO) and microseismicity location. In addition, it assists with pore pressure and geomechanical studies. Moreover, natural fractures play a critical role for unconventional reservoirs yet information regarding their occurrence and characteristics is very limited. Their presence significantly affects hydraulic fracturing and any associated stimulation plans that are critical for economic success. VSP ( HARD DATA) ZVSP ISOTROPIC SETTING

WALK AWAY VSP

WALK AROUND VSP

POLAR ANISOTROPY

AZIMUTHAL ANISOTROPY

VTI ANISOTROPIC MODEL *

HTI- FRACTURES DETECTION**

Stifness tensor

MICROSEISMIC

would be the calibration for anisotropic seismic migration? How can the uncertainties of the microseismic location be reduced? Does it help in the interpretation of azimuthal AVO (AVOaz) and other seismic attributes studies related to fractures? The first step toward answering these key questions was to study seismic anisotropy from both 3C walkaway VSP (WAW) and walkaround VSP (WAR) data. This research presents the results of the following: 1. a walkaway VSP (WAW) analysis for overburden anisotropy and Thomsen parameters (δ, ε and γ) determination and 2. a walkaround VSP (WAR) to reduce fracture characterization uncertainties to be integrated with the amplitude variation with offset and azimuth (AVOaz) and polar anisotropy studies for a tight gas sandstone reservoir located in Neuquina Basin, Argentina.

VTI / HTI to ortorrombic stifness

3D SEISMIC - MIS-POSITIONING*

- SUBSEISMIC FAULTS

- STRUCTURAL MODELING*

- STRUCTURAL COMPLEXITY

- STRATIGRAPHIC MODELING* - AVO*

- NATURAL FRACTURES

- AVOAZ**

- ROCK RUPTURE MECHANISM

- ELASTIC INVERSION* ( ,P-impedance, S-impedance)

- HYDRAULIC FRACTURE COMPLEXITY - DRAINAGE MECHANISMS

POISSON´S CUBE

YOUNG´S CUBE

TRANVERSAL ELASTICITY

- HYDRAULIC FRACTURE GEOMETRY

LAMBDA-RHO LAMBDA-MU

MU-RHO ETC.

- PORE PRESSURE PREDICTION

3D GEOMECHANICS

Figure1: A proposed 3C VSP to geomechanics workflow illustrating the importance of understanding the 3C WAW and WAR as “hard data” for 3D seismic and its contribution to 3D geomechanics. We note the intrinsic relationship to the anisotropic parameters through the stiffness tensor.

The acquisition of high fold 3D surface seismic and microseismic data in Rio Neuquén field, Neuquina Basin, Argentina was critical in designing a workflow that also crucially integrated vertical seismic profile (VSP) data (Figure 1). The design of this workflow was motivated by the following questions: What

Figure 2. (Left) Study location map from the Neuquén province and Neuquina Basin (Ari 2013; Gonzalez Riga 2003). (Right) In yellow, the setup of WAW and WAR.

The units involved in this study are the Punta Rosada and Lajas Formations. The Punta Rosada is characterized by strong lateral and vertical facies changes as a result of important wide variations in relative sea level, sediment supply and tectonic influence. The Lajas formation comprises the transition from deltaic deposits in the basal section to sandy fluvial channelized bodies to the top. The total thickness of both units is approximately 1000 meters and its top is characterized by the presence of an important regional

LARAC Technical Corner unconformity. The structure under study is a pop-up structure, generated by a strike-slip fault (Figure 2). 2. Methodology. 2.a Survey Design. WAW survey includes two orthogonal walkaway VSP lines. One of these is parallel to the dip of a pop-up structure; it has a maximum offset of 3400 m (Line 1 in Figure 3). The second line is perpendicular to the dip of the pop-up structure (Line 2 in Figure 3) with a maximum offset of 5300 m. A total of 40 3C receiver levels spaced 15 m apart and covering a depth interval of 585 m (3425 to 4010 m depth) were acquired in the vertical section of the well. WAR survey design primarily consists of optimizing the shot and receiver positions to detect fracture-induced azimuthal anisotropy. The receivers are located along the formation of interest, with some located above it to detect any pattern differences. The ideal shot offset to generate converted S-waves at the top of the reservoir is defined by the Zoeppritz equation that utilizes the Vp/Vs relation and the densities for the top and bottom layers. Two 60,000 lbs. P-vibrators were used as the seismic source in a frequency range from 6 Hz to 96 Hz with sweeps of 12 seconds and a sampling frequency of 1 millisecond. 2.b. Thomsen parameters determination. The walkaway data was processed following a workflow that included 3C rotation of the data to the sourcereceiver plane and then picking first break arrivals on the radial component shot gathers. Thomsen parameters were estimated for each WAW line through an iterative travel-time inversion. The WAW had good quality data. As  parameter required another analysis, it was useful only with the determination of  and . First, a planar VP0 and VS0 model from the zerooffset VSP was built. Then, the velocity model was used to calculate travel-times for a range of Thomsen parameters using a 2D ray tracing technique. Next, the best-fit anisotropic parameters that match observed travel-times was determined. This process was applied in a stripping fashion for three depth zones: the overburden (from velocity datum to top of Punta Rosada formation), Punta Rosada formation, and Lajas formation (Figures 3 and 4). 2.c. Shear Wave analysis

Figure 3. (Left) Depth zones of the layered model: 1. Overburden section; 2. Punta Rosada Media Fm. section; 3. Lajas Fm. section. (Right) Scheme of the survey design.

The WAR had good quality data, and P-wave and mode-converted shear waves were recorded in the zone of interest. This provided key seismic events to analyze the azimuthal anisotropy of Punta Rosada Media and Lajas Formations. The data pre-processing consisted of trace header inspection, data editing and stacking, first break picking and tool orientation to the Cartesian system. The data was then rotated horizontally using the azimuthal polarization angle to maximize the direct Pwave energy in the radial component (HR), with the other horizontal component, transverse (HT), oriented 90° from the radial. A vertical rotation is then applied in the vertical-radial components. These rotations helped to isolate the compressional and shear wavemodes into different components and assisted in wavefield separation (Figure 5). The HT/VT RMS amplitude ratio was computed over a time window of 35 ms before and 35 ms after aligning the data on the S-wave event pick

Figure 4. (Left) Example of overburden P-wave anisotropy. RMS map error indicates that the best fit converges to to =0 and =6% (white circle) with RMS of 5.04 ms. (Right) Travel-time plot for common receiver gather. In blue, measured travel-time and in red calculated travel-time for the best fit.

LARAC Technical Corner

Figure 5: Example of VT and HT shot gather after 3-component rotations.

Results and Conclusion. The results show the following: Utilizing the WAW VSP, the parameters δ and ε values were estimated from two orthogonal walkaway VSP lines; the difference in δ value was found to be less than 3%, whereas the difference in ε is approximately 6%. Research on γ determination is currently being performed. These differences indicate that the area shows weak anisotropy and that the possibility of transverse isotropy (VTI) exists. A VTI symmetry means that the two axes perpendicular to the vertical have the same Thomsen parameters. The WAW analysis tested this hypothesis to determine whether or not line 1 and line 2 have the same (or approximate) anisotropy parameters, namely, δ and ε. With the WAR VSP data, horizontal transverse (HT) to vertical transverse (VT) amplitude ratios and VT-HT polarization hodograms are calculated from the down-going shear waves. These attributes may provide evidence of azimuthal anisotropy through transmission analysis. The analysis of different birefringence attributes showed weak evidence of azimuthal anisotropy on the depth range covered by the receiver array which suggests the weak presence of natural fractures in the study area. The theoretical background, geological setting, methodology and interpretation are provided and further described in Curcio et al. (2016) and Curcio

(2018). References Curcio, A., Grosso, A., Perez, R., Barrios, O., “Anisotropy study of deep unconventional reservoir inverting Walkaway VSP data, Argentina”, 2016, 86th Annual International Meeting, SEG, Expanded Abstracts, United States, 362-366. Curcio, A., Reducing Geomechanical Model Uncertainties: Anisotropy Study using a Multicomponent Walk-Away VSP and Walk-Around VSP, Neuquina Basin, Argentina', 2018, X Congreso de Exploración de Hidrocarburos, Mendoza, Argentina Grechka, V., 2009, “Applications of Seismic Anisotropy in the Oil and Gas Industry”, Education tour series No.3, EAGE. Liu, Y., S. Crampin, and I. Main, 1997, “Shear-wave anisotropy: spatial and temporal variations in time delays at Parkfield”, Geophysical Journal International, 130 (3), 771–785. Taylor, S. and Curcio, A., 2014, “Principals and Observations to effective microseismic mapping and derived studies. An example on Vaca Muerta Formation, Neuquina Basin”, Congreso de Exploración de Hidrocarburos, IAPG, CD Trabajos Técnicos, p. 307 – 325. Thomsen, L., 2002, “Understanding Seismic Anisotropy in Exploration and Exploitation”,

Affiliated Societies Activities

Affiliated Societies Activities Colloquium organized by AMGE, Mexico AMGE (Spanish acronym for the Mexican Association of Exploration Geophysicists) recently orga-

v=PN78yBoKJw8&amp;ab_channel=AMGENACIONAL

nized a colloquium, in Spanish, on “Professional

(Streamed live on Jun 30, 2021)

Service and Development in Exploration Geophysics.” Details and recording can be found at the following YouTube link:

https://www.youtube.com/watch?

Student Chapters Activities GeoCast By SEG Student Chapter of the National University of Tucumán From Tucumán, the smallest province in Argentina, a great proposal was born at the initiative of our Advisor, José Pablo López, PhD. Committed to scientific disclosure, in 2017 he published his first book on the subject: "Essential Geology", today he is carrying out an inspiring project, GEOCAST, a YouTube channel designed to spread geology in areas outside the academic environment. This initiative is aimed at the general public and aims to communicate, teach, and inspire students, to geosciences enthusiasts, and even to primary and secondary school teachers so that the content of the channel can be used as a trigger to develop the geoscientific interest and knowledge in schools. The premises are clear and simple: always base on scientific knowledge and approach it with academic rigor; transmite it in simple language and have fun with the creative process of GEOCAST, a channel where anyone can bring themselves to interpret a landscape, classify a rock or a ground, or simply understand what surrounds us and that many times has been presented as “incomprehensible”.

which it would be destined as well as the depth with which we should work. The rest was dare and experiment. Soon after, many colleagues from diverse specialties joined in and made their contribution therefore expanding the limits of our own knowledge. Personally, I hope GEOCAST will be a channel with much more than Geology, since Geophysics, for example, also has a lot to say, and as we grow, new ideas, new proposals and new horizons will emerge. If you ask me about my expectations, actually I like to imagine that GEOCAST can become a medium in which many of us can express ourselves, communicate and make a great contribution to the geoscientific knowledge of our time.” José Pablo López Biography: José Pablo López, PhD In Geology, Professor of the Petrology seat and member of the Postgraduate Career of the Faculty of Natural Sciences of the National University of Tucumán, researcher at the Higher Institute of Geological Correlation (INSUGEOCONICET), advisor of the student chapter (UNT) of the SEG, editor of "Essential Geology" and creator of the You Tube channel of scientific dissemination GEOCAST.

SEG Student Chapter UJAT Activities Summary

When asked how the idea came up? JP (pseudonym by which the university community knows him) told us: “With the pandemic, virtuality forced me (like all my colleagues) to explore beyond my comfort zone; I had to learn about "new-old" technologies, try new dynamics in my classes, learn from my students, younger and less structured ... That is how we came up with this idea and it started taking shape in talks with colleagues until, in mid-November 2020, we uploaded the first video. With colleagues and students we gave it the format, we agreed on the characteristics and the platform, we decided the audience to

As student chapter related to SEG and our responsibility to share information about Geophysicist to students, professors, workers of geosciences and the public, our chapter in collaboration to another chapters from Mexico decided to create activities with different specs that could be helpful to students and professionals to learn about new opportunities on geophysics in Mexico. To achieve our goal, we create and collaborate in these activities: Courses SEG UJAT promoted three different courses on April, May and June 2021, those courses as an introduction to our associates in these areas: Seismic data processing by our classmate and founder of our chapter Luis Oscar Ascencio Vera. Oil seismic interpreta-

Student Chapters Activities tion and piles integrity test, both imparted by professor Daniel Andres Damas Lopez, who is our CoAdvisor and professor of our University.

Conferences and Webinars Last months we organized a few conferences and webinars with finality to share a little we have learned our university. Some member of SEG-UJAT were on charge to share their experiences with geophysical methods to ARIGEM that is a company dedicated to oil services in Tabasco, Mexico. Our main project related to sharing information about geophysics and geology, named Geonoches, we have been working during this year in three different events (January, March and May 2021), where we invited researchers and professor from all Latin American to share their jobs through webinars.

Collaboration with other student chapters Our chapter had two collaborations. First one denominated GEOCARNAVAL were in collaboration with three chapters from two universities: Universidad Juárez Autónoma de Tabasco (UJAT) and Instituto Politécnico Nacional (IPN). The participant chapters were: EAGE-IPN, AEGGI-UJAT, SPE-IPN and SEG-UJAT. Eleven webinars were broadcasted by Facebook Live dated on May 3 – 5, 2021. Second collaboration occurred on May 2021 with SEG-CICESE from Centro de Investigación Científica de Educación Superior from Baja California, Mexico. We had an online meeting where we discussed the Geophysicist in Mexico and exchange points of view about postgraduate studies.

GWB Preparatory Course Federal University of Ouro Preto SEG Student Chapter - Sociedade de Geofísica Aplicada (SGA) Earlier this year, the Society of Applied Geophysics (SGA) had the project “Geophysics applied to geotechnical study in Ouro Preto, MG - Brazil” approved in the Geoscientists Without Borders (GWB) program, which proposes the use of geophysics in

Student Chapters Activities delimitation and characterization of risk areas in the city of Ouro Preto due to the potential for geotechnical risk for its inhabitants and its historical and cultural heritage. The project is coordinated by professors Maria Sílvia Carvalho Barbosa and Joney Justo da Silva from the Department of Geology at the Federal University of Ouro Preto (UFOP) and by geological engineer Luis Artur Souza Oliveira, with the participation of SGA members. In addition, it has the support of the Geological Service of Brazil (CPRM), Civil Defense and BOG Geophysics. The creation of a database for the GWB project was the starting point for the beginning of the work. For this, the project's supervisors started a moment of teaching and training the students, called “GWB Preparatory Course”. Throughout February so far, weekly meetings are being held to instruct participants to work with the knowledge necessary for the development of the project. Therefore, the course was divided into three strands: geoprocessing, geophysical methods and their applications and data processing at Oasis Montaj.

Data processing at Oasis Montaj

Scientific dissemination in times of pandemic By Isabela Albuquerque On May 6, the chapter had a chat with Katia Pinheiro, researcher at the National Observatory, about scientific dissemination and the difficulties generated by the pandemic. Katia works in several scientific dissemination projects as coordinator of the MOSAIC (Magnetic Observatories, Stations And Integrated researCh) Group. The chat recording can be watched here (in Portuguese).

GWB Preparatory Course

SEG Challenge Bowl Latin America Regional By Isabela Albuquerque

Introduction to Magnetometry

On May 22nd we had the 2021 SEG Challenge Bowl Latin America Regional, organized by the National Observatory Student Chapter.

Student Chapters Activities The event had the participation of 16 teams from Argentina, Brazil and Colombia and was presented by Peter Duncan, creator and organizer of the SEG Challenge Bowl.

The three teams with the best scores, from the Universidad Nacional de La Plata and Universidad Nacional de Tucumán, were the winners and will compete in the world final on October 23, 2021.

To prepare the students, we organized a chat with Peter Duncan before the event, in which he talked about the competition and runned a live test of the app to help students prepare. The chat recording can be watched here.

More information about the competition can be found on the official webpage.

Country Argentina

Participating student chapter

Finalist teams

Universidad Nacional de La Plata Geophysical Society

1st

Universidad Nacional de Tucuman SEG Student Chapter

Universidad Nacional de La Plata Francisco Ghersi María Dolores Corva 2nd

Universidad Nacional de San Juan Geophysical Society University of Campinas Geophysical Society State University of Rio de Janeiro Geophysical Society Brazil

Federal University of Bahia EAGE Student Chapter Federal University of Ouro Preto SEG Student Chapter Universidade Federal Fluminense Geophysical Society National Observatory Greenstone Belt Geophysical Society Universidad Nacional de Colombia Geophysical Society

Colombia

Universidad Industrial de Santander Geophysical Society Universidad de Caldas SEG Student Chapter

Universidad Nacional de La Plata Agustín Gómez Federico Bucher 3rd Universidad Nacional de Tucumán Ariana Dulci German Rodriguez

Student Chapters Activities SEG Women’s Network Student Chapters: Argentinian chapter By Natalí Barria SEG WN Argentina Student Chapter, is a project promoted by SEG Women's Network. The SEG WN Student Chapters have as mission develop a professional network that shows and supports globally the work of women who are starting a career in geosciences and related fields, promoting global diversity and equal opportunities. From SEG WN Argentina Student Chapter, we want to promote the design of activities that include regular meetings to establish a professional network, share opportunities of mutual interest, participate in webinars provided by Women's Network and SEG, as well as provide and receive advice for the preparation of CVs, scholarships and grants.

and Foreign Trade Analyst. She told us about her experiences related to the search of what she is passionate about and the difficult challenges she had to face in her career and how she solved them. The live can be watched on the SEG Women's Network Students on YouTube.

The activities we have carried out until now are: “Forum: Women in Geosciences” On April 28, we held our first activity called "Forum: Women in Geosciences" where the invited panelists Ana Curcio and Raquel Villegas shared their experiences about their professional development and their relationship in the field of research.

SEG Women’s Network Student Chapters: Brazilian chapter By Isabela Albuquerque SEG Women’s Network is a community part of the Society of Exploration Geophysicists (SEG). SEG WN is a social and civic, non-profit organization, founded in 2011 whose mission is to promote gender diversity and equality, amplify women's stories in geophysics and related fields; in addition to promoting positive examples for future generations of women, by celebrating their achievements and efforts. In early 2021, the Brazilian student chapter of the SEG Women's Network was founded. Our mission is to empower and highlight the profiles of geoscientist women in Brazil. So far, the SEG Women’s Network Brazil Student Chapter has organized the following activities:

“Coffee Talk” The June 8th we held our second activity called "Coffee Talk" in which our guest was Sofia Manusakis. Sofia is a student of Geological Sciences at the University of Buenos Aires (UBA), and a Speaker

Women in Geosciences On March 17th and 18th we had our first event, in honor of the women's month, Women in Geosciences, organized in partnership with the SEG chapters at UERJ and National Observatory, and with support

Student Chapters Activities from the Brazilian Geophysical Society (SBGf) and the NGO Cais Mentoria. The event had two round tables, the first on how the profession in geosciences has changed over the years and the second with professionals from academia and industry talking about the differences they found. At the tables, we had the participation of 10 fantastic women and professionals and the tables were mediated by the student chapter leaders, Odette Aragão e Isabela Albuquerque.

MSc students in Europe

PhD students in North America

Round table “How the profession has changed over the years”

PhD students in Europe

Round table “Different perspectives: industry and academia”

Study abroad: Opportunities in Geophysics The event Studying abroad: Opportunities in Geophysics brought together Brazilian graduate students who have studied or are studying in other countries to share their experiences and help other students who want to follow the same path. The event had four editions with masters and PhD students in Europe, North America and Oceania. More information about our events can be found on our website and Instagram profile.

PhD students in Oceania

SEG | AAPG IMAGE SEG and AAPG Combine Annual Meetings for next five years This year’s Society of Exploration Geophysicists (SEG) International Exhibition and 91st Annual Meeting is being held in conjunction with the American Association of Petroleum Geologists’ (AAPG) 2021 Annual Convention and Exhibition (ACE) and the Society of Sedimentary Geology (SEPM). The joint conference, renamed the International Meeting for Applied Geoscience & Energy (IMAGE), will be held in Denver from Sept. 26-Oct. 1 as originally planned for the SEG’s Annual Meeting. The two events will be fully integrated, online and inperson, with a comprehensive technical program featuring more than 20 concurrent technical sessions and a joint exhibition featuring the latest geoscience products and technologies. “We’re looking forward to bringing SEG and AAPG members together to exchange ideas and experiences,” said SEG President Maurice Nessim. “It will be geosciences week in Denver. Our focus on science, its applications, and our community is what unites us in purpose and makes this collaboration so powerful.” Better serving the needs of geoscientists in a rapidly changing energy landscape and achieving synergies in event operations drove the organizations’ decision to hold integrated annual conventions. The

hybrid event format will permit speakers, exhibitors, and attendees to participate at the Colorado Convention Center and online. The combined program will continue to feature many of the elements that attendees of both the AAPG and SEG conventions long have valued. One registration will give delegates access to the core technical sessions and exhibition and access to several ticketed training and social events. Exhibitors and sponsors will benefit from access to two audiences with a single engagement. “Combining our annual events answers the stated wishes of our members and our exhibition and sponsorship patrons,” said AAPG President Rick Fritz. “It also represents a strategic response to shifting industry conditions. I think our members and clients will enthusiastically embrace the benefits of one annual meeting to connect with fellow geoscientists.” The organizations’ leaders expect the combined conventions to further cement SEG’s and AAPG’s positions as the recognized global leaders in the dissemination of high-quality applied geoscience knowledge and data. Their agreement for the IMAGE conferences is for five years, covering the organizations’ annual meetings through 2025, all of which are being planned to be held in Houston, Texas, USA (https://imageevent.org/2021).

Upcoming Events

Offshore Technology Conference (OTC) 16 - 19 August 2021

Unconventional Resources Technology Conference (URTeC)

Houston, TX, USA and Virtual

26 - 28 July 2021

The Offshore Technology Conference (OTC) is where energy professionals meet to exchange ideas and opinions to advance scientific and technical knowledge for offshore resources and environmental matters.

Houston, TX, USA and Virtual URTeC is a premier event focused on the latest science and technology applied to exploration and development of unconventional resources, with special emphasis on integration of the multiple disciplines. Website: urtec.org/2021

SEG | AAPG International Meeting for the Applied Geoscience and Energy (IMAGE) 26 September – 1 October 2021 Denver, CO, USA and Virtual This event is the ultimate learning and networking event for geoscience and energy. IMAGE ’21 combines all the great elements from each society’s previous annual meetings to offer a better experience and increased value for the industry. Website:

Website: 2021.otcnet.org

2nd SEG Latin America Virtual Student Conference 9 - 10 November 2021 Virtual Conference The event is open to all undergraduate, masters, and PhD students and recent graduates (up to one year until the date of the event) from all Latin America universities who would like to share their research work with their peers and develop an international network. It provides a unique opportunity to learn how to write an abstract and develop presentation skills.

Call for Abstracts closes

imageevent.org/2021/

31 July 2021

2021 Latin America Honorary Lecturer: The new paradigms in seismic inversion

Website:

23 November 2021 Virtual

seg.org/Events/2nd-SEG-Latin-America-Virtual -Student-Conference

Check out more events in

Presenter: Dr . Miguel Bosch,

seg.org/Events/Events-Calendar

CEO at Info Geosciences Technology and Services

Website: www.knowledgette.com/p/the-new-paradigms-in -seismic-inversion

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