Marcos Zavala
Geologist
Houston,TX
Summary
Accomplished Reservoir Geologist adept at leveraging expertise in oil and gas exploration and production to enhance reservoir characterization and drive operational success. Skilled in integrating geological, petrophysical, and geophysical data to construct comprehensive 3D models using advanced software tools. Proficient in optimizing reservoir performance through history matching and identifying new opportunities for reserve growth. To seek and maintain full-time position that offers professional challenges utilizing interpersonal skills, excellent time management and problem-solving skills.
Overview
27
27
years of professional experience
Work History
Reservoir Geologist
CBM, ENGINEERING, EXPLORATION AND PRODUCTION
05.2014 - 07.2024
- Led geological analysis and mapping efforts for the Ximin-Xu reservoir, contributing to field development planning and new well proposals
- Optimized well drilling proposals through thorough risk analysis and geological assessment.
Reservoir Geologist
EGV SOLUTIONS LLC
01.2019 - Current
- Spearheaded production pilot project in Ecuador, refining geological data and developing 3D reservoir model to optimize oil extraction via steam injection.
- Generated geologic maps, well correlations, and cross sections to identify high-potential areas for further development.
- Conducted reserve evaluations to support prospective studies in mature fields.
Independent Consulting Geologist/Geomodeler
Freelance
01.2018 - 01.2019
- Provided technical support for 3D structural and facies modeling projects for AURA Energy Solutions in Argentina, ensuring accuracy and validation of seismic interpretations
- Supported PETROLERN in global geological modeling initiatives, including data validation and 3D model construction.
Software Application Support III
PARADIGM GEOPHYSICS
01.2014 - 01.2018
- Delivered expert support for SKUA-GOCAD and Strat-Earth applications, both locally and remotely, with focus on improving modeling workflows and customization managing about 20 incoming calls and emails per day.
- Facilitated construction of structural and property models for reservoir simulations, enhancing reservoir characterization.
Reservoir Geologist
Schlumberger
08.2008 - 03.2014
- Spearheaded application support for Petrel users, directing creation of 3D Models for Sanchez Magallanes field and overseeing existing model enhancements.
- Coordinated production enhancements in Sanchez Magallanes field, elevating output from 4.6k bpd to 10k bpd.
- Provided geological expertise in design and execution of highly deviated and horizontal wells, optimizing trajectories for Tertiary field of Sanchez Magallanes with Petrel.
- Evaluated and managed subsurface data to develop subsurface maps, well plans, correlations, and structural cross-sections.
- Supported workover, recompletion, and reentry operations, constructing well correlations and producing structural and properties maps to boost reservoir production.
- Provided comprehensive support in construction of reservoir 3D models for Abkatun-Pol-Chuck Asset, including data management and EOR tasks.
- Led efforts in upscaling 3D models for reservoir simulation, ensuring increased reliability and accuracy.
- Evaluated subsurface geological data for constructing structural and property maps and well correlations for various reservoirs.
- Developed 3D models for identifying sand bodies in Dos Bocas and Puerto Ceiba fields for hydrogeological management.
Education
Data Sciences Certification - Data Sciences
University of Texas At Austin, McCombs School of Business
Austin, TX01.2024
MSc, Geology - Geology
Colorado School of Mines
Golden, COBachelor of Science - Geological Engineering
Universidad De Los Andes
Mérida, Venezuela04.1995
Skills
- Petrel
- Skua-Gocad
- G-Verse
- Microsoft Office Suite
- Interactive Petrophysics (IP)
- Python
- Power BI
- SQL
- Interpersonal Communication
- Friendly, Positive Attitude
- Team building
Citizenship
U.S.A Citizen
Professional Development
- Geotectonic interpretation of well logs
- Stratworks
- Petrel
- GOCAD-SKUA
- G-Verse
- Geosteering
- Fracture Modeling
- Python
Languages
English
Full Professional
Spanish
Native or Bilingual
Timeline
Reservoir Geologist
EGV SOLUTIONS LLC
01.2019 - Current
Independent Consulting Geologist/Geomodeler
Freelance
01.2018 - 01.2019
Reservoir Geologist
CBM, ENGINEERING, EXPLORATION AND PRODUCTION
05.2014 - 07.2024
Software Application Support III
PARADIGM GEOPHYSICS
01.2014 - 01.2018
Reservoir Geologist
Schlumberger
08.2008 - 03.2014
Data Sciences Certification - Data Sciences
University of Texas At Austin, McCombs School of Business
MSc, Geology - Geology
Colorado School of Mines
Bachelor of Science - Geological Engineering
Universidad De Los Andes
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