Nelbett Marfisi
Geological Engineer
Bogotá,DC
Summary
Highly skilled Geologist with 23+ years of industry experience, focusing on sedimentology and stratigraphy in conventional and unconventional reservoirs. Demonstrated leadership, communication, adaptability, and teamwork abilities. Extensive background in reservoir characterization and resource optimization for drilling operations. Proficient in evaluating, modeling, and developing reservoirs using advanced technology and multidisciplinary analysis. Recognized for contributions to the geological field through international publications and global conference presentations. Organized and dependable successful at managing multiple priorities with a positive attitude.
Overview
26
26
years of professional experience
7
7
years of post-secondary education
5
5
Certifications
2
2
Languages
Work History
Sedimentologist for Reservoir Development
ECOPETROL
Bogotá, Bogota D.C.
01.2025 - Current
- Excellent communication skills, both verbal and written.
- Proven ability to learn quickly and adapt to new situations.
- Skilled at working independently and collaboratively in a team environment.
- Conducted sedimentological studies to support reservoir development projects.
- Analyzed core samples and geological data to assess reservoir quality and potential.
- Collaborated with engineers and geologists to design and implement development strategies.
- Provided technical expertise in sedimentology for optimizing reservoir performance.
- Worked well in a team setting, providing support and guidance.
- Passionate about learning and committed to continual improvement.
- Self-motivated, with a strong sense of personal responsibility.
Geologist/Sedimentologist of Reservoirs
ECOPETROL
Bogotá, Bogota D.C.
01.2023 - Current
- Developed drilling proposals and strategies based on subsurface geology fundamentals for primary, secondary, and tertiary oil reservoir recovery
- Conducted stratigraphic correlations and geological and mineralogical analyses to evaluate sedimentological properties
- Led projects to assess sedimentological characteristics, conducted knowledge research, and prepared reports, maps, and diagrams for presentation
- Utilized UNIX systems and software such as PETREL, TECHLOG (Schlumberger), and DionisosFlow (Beicip-Franlab) for data analysis and reservoir modeling
- Conducted detailed geological surveys and analyses to identify potential oil and gas reserves within sedimentary rock formations
- Interpreted well data and conducted field investigations to evaluate reservoir quality and recommend optimal well completion techniques
- Geólogist/Sedimentólogist of Reservoir
Sedimentologist for Unconventional Play Developmen
ECOPETROL
Bogotá, Bogota D.C.
04.2012 - 01.2023
- Conducted comprehensive sedimentological analysis to identify reservoir properties and depositional environments in unconventional plays
- Utilized advanced petrographic techniques to analyze sedimentary rocks and determine diagenetic processes impacting reservoir quality
- Collaborated with multidisciplinary teams to integrate sedimentological data with seismic interpretation and well log analysis for thorough reservoir characterization
- Developed and implemented innovative strategies to optimize drilling and completions in unconventional reservoirs based on sedimentological insights
- Conducted detailed analysis of unconventional reservoir sedimentary characteristics to optimize drilling and production strategies for oil and gas exploration projects
- Implemented advanced sedimentological techniques, such as core description and well logging interpretation, to assess reservoir quality and predict fluid flow behavior in unconventional formations
- Collaborated with cross-functional teams to interpret geologic data and recommend potential drilling locations based on sedimentological analysis of unconventional reservoirs
- Utilized software tools and modeling techniques to map sedimentary facies distributions and identify potential sweet spots for hydraulic fracturing in tight oil and gas reservoirs
- Managed time efficiently in order to complete all tasks within deadlines.
Sedimentologist in Regional Exploration
ECOPETROL
Bogotá, Bogota D.C.
01.2010 - 04.2012
- Led field expeditions to collect sediment samples and performed detailed analyses to determine depositional environments and sedimentary processes.
- Collaborated with geologists and geophysicists to interpret data and identify potential hydrocarbon reservoirs in regional exploration projects.
- Presented findings and recommendations to senior management and stakeholders, contributing to successful decision-making in regional exploration efforts.
- Conducted comprehensive sedimentological analyses of core samples to identify depositional environments and sequence stratigraphy in multiple regional exploration projects.
- Integrated sedimentological data into regional exploration models and interpreted the depositional history of target areas in collaboration with geologists and geophysicists.
- Presented findings from sedimentological investigations at regional exploration meetings and conferences, effectively communicating key insights and recommendations for future exploration efforts.
- Proven ability to learn quickly and adapt to new situations.
Geologist/Cluster Leader
PETROCEDEÑO
CARACAS, Distrito Capital
01.2007 - 01.2010
- Directed a team of geologists in conducting field surveys, collecting rock samples, and analyzing data to identify potential drilling sites for oil and gas exploration projects.
- Managed project timelines, budgets, and resources to ensure the successful completion of geological studies in compliance with industry standards and regulations.
- Spearheaded the development and implementation of innovative geological mapping techniques to enhance accuracy and efficiency in identifying mineral deposits and predicting underground formations.
- Collaborated with cross-functional teams, including engineers and environmental scientists, to integrate geological findings into comprehensive reports and recommendations for resource extraction projects.
- Conducted detailed geological analyses to identify and evaluate potential hydrocarbon reservoirs within clusters.
- Coordinated with multidisciplinary teams to integrate geological data into cluster development plans.
- Managed field operations and ensured the accurate collection and analysis of geological samples.
Geologist
SINCOR
CARACAS, Distrito Capital
01.2007 - 12.2007
- Conducted well log analyses and interpreted data to ascertain reservoir properties, including porosity, permeability, and water saturation.
- Managed geological and geophysical data to identify potential hydrocarbon-bearing formations and evaluate reservoir quality.
- Collaborated with multidisciplinary teams to integrate petrophysical data with seismic interpretations and geological studies for comprehensive reservoir characterization.
- Directed a team of geologists in conducting field surveys, collecting rock samples, and analyzing data to identify potential drilling sites for oil and gas exploration projects.
- Managed project timelines, budgets, and resources to ensure the successful completion of geological studies in compliance with industry standards and regulations.
- Spearheaded the development and implementation of innovative geological mapping techniques to enhance accuracy and efficiency in identifying mineral deposits and predicting underground formations.
Internship as a Prerequisite for Master's Degree
SINCOR
CARACAS, Distrito Capital
02.2006 - 12.2006
- Conducted a comprehensive sedimentological interpretation of the Lower Section, Units (D, E, F) of the Oficina Formation in the Sincor Area (Zuata-Junín) as part of Master's Degree Thesis in Geological Sciences
- Gathered geological samples and data through extensive fieldwork
- Delivered research findings at prestigious academic conferences
- Contributed to the writing of scientific papers intended for publication in peer- reviewed journals
Reservoir Development Geologist
PDVSA
CARACAS, Distrito Capital
06.2003 - 01.2005
- Conducted geological analyses to support the development and optimization of hydrocarbon reservoirs.
- Collaborated with multidisciplinary teams to integrate geological data into reservoir development plans.
- Utilized advanced geological modeling techniques to predict reservoir behavior and identify optimal drilling locations.
- Prepared detailed reports and presentations for stakeholders to inform development strategies and decision-making
- Developed drilling proposals, supervised geological drilling and wellbore navigation
- Validated maps of heavy crude oil fields
- Coordinated, executed, and monitored crude oil reserve incorporation program
- Conducted correlations and interpretations of 2D and 3D seismic data
- Utilized tools such as Sigemap, Oil Field Manager, and applied Economic
- Managed short and medium-term Opportunities Portfolio
Reservoir Development Geologist
GESCA
CARACAS, Distrito Capital
01.2002 - 12.2002
- Conducted detailed descriptions and analyses of physical data, including well logs, well histories, project reports, and production summaries, for wells in the Nipa and Nardo fields of UEY Mediano.
- Performed production validation using OFM and Centinela software to ensure data accuracy and reliability.
- Reviewed geological correlations and drilling proposals based on static reservoir engineering models to support exploration and development decisions.
- Analyzed and validated data using OFM, Siswell 1.0, Centinela software, and production books for each well zone to optimize reservoir management.
- Provided guidance and mentorship to undergraduate thesis projects in the fields of Geology and Sedimentology, fostering academic growth and research skills.
Engineering Technical Support
PDVSA - Intevep, CARACAS
CARACAS, Distrito Capital
11.1999 - 08.2001
- Conducted sedimentological and stratigraphic analysis of the core from well
- RG-231 in Santa Rosa Field, Anaco Major Area, Office Formation, Eastern Basin of Venezuela, Anzoátegui State
- Analyzed and described cores macroscopically and microscopically using thin sections
- Performed correlations in Stratwork (LANDMARK) software
- Generated facies maps of total thickness, net sand, and net oil sand in
- Mapview (LANDMARK)
- Defined a static model through sedimentological, stratigraphic, and petrographic analysis
- Supervised by Dr
- Argenis Rodriguez and Engineer Carlos Linares
- Undergraduate Thesis
- PDVSA-Intevep
Internship
PDVSA Intevep
CARACAS, Distrito Capital
08.1999 - 11.1999
- Systematically described core samples from well RG-231 in the Santa Rosa Field, Anaco Major Area, Oficina Formation, Eastern Venezuela Basin.
- Loaded and organized geological data using Apple Core software for efficient data management.
- Selected and processed core samples for specialized analysis techniques to enhance geological understanding.
- Developed effective improvement plans in alignment with goals and specifications.
Education
Master of Science - Master's Degree in Earth Sciences
Universidad Central De Venezuela
Caracas, Venezuela 05.2006 - 12.2006
Bachelor of Science - Geological Engineering
University of Oriente
Ciudad Bolivar, Venezuela 02.1995 - 12.2001
Skills
Committed
Willing to go the extra mile
Critical Thinking Skills
Attention to Detail
Core Analysis
Reservoir Characterization
undefinedProfessional Successes
- Co-directed and instructed the UEI FieldTrip Non-Conventional course: Recognition and Characterization of YNC Shales Plays in the Middle Magdalena Valley Basin - VMM 2015 with Universidad Ecopetrol.
- Co-directed and instructed the UEI Efficient Processes for Characterization and Development of Shale Plays. Basic Level 2022 course with Universidad Ecopetrol.
- Co-directed the thesis of ANDREA CAROLINA PÉREZ PARDO in the Department of Geosciences, Faculty of Sciences: 'Facial Analysis from Cores and Well Logs in the La Paz Formation, Yariguí Field - Cantagallo, Middle Magdalena Valley, Colombia' with Universidad Nacional de Colombia.
International Publications And Merits
- Felipe de la Parra, PhD, Camilo Higuera, PhD, Nelbett Marfisi, MSc, Rigo Ramírez, Lina Maria Maya, Sandra Cespedes, MSc, Angelica Carreno, Tatiana Juliao, PhD, Silvia Forero, 2023, Chronostratigraphy of the upper Cretaceous Formations in the Middle Magdalena Valley of Colombia (Northern South America)
- M. Florencia Segovia, M. Juliana Robayo, Nelbett K. Marfisi, Gabriela Dávalos, Erek Hutto, 2022, Organic porosity study from Upper Cretaceous source rocks in The Middle Magdalena Valley Basin, Colombia
- Felipe A. Lozano, Nelly P. Rubio, Maria F. Segovia1, Jose M. Marentes, Henry G. Suarez, Nelbett K. Marfisi, Ana M. Lopez, 2022, Regional Characterization of Caprock Seals Associated with Flowback Disposal Injection and Hydraulic Fracturing Barriers
- Segovia M.F, Juliao Lemus T., Marfisi N., Robayo M.J. (VNC Ecopetrol), Sanchez N. (ICP Ecopetrol), Montilla L. (VEX Ecopetrol), Hutto E. (Halliburton), 2022, Organic porosity study from Late Cretaceous source rocks in The Middle Magdalena Valley Basin, Colombia
- Sandra Cespedes, Paola Barrera, José Mauricio Marentes, Felipe Cardona, Henry Giovanni, Diego Venegas, Nelbett Marfisi, Tatiana Juliao, Maria Juliana Robayo, Felipe de la Parra, Iván Acosta, Salome Bonilla, Felipe Lozano, María Florencia Segovia, 2021, Formación Lidita Inferior: Objetivo de los Proyectos Piloto de Investigación Integral (PPII) de Yacimientos No Convencionales en el Valle Medio del Magdalena (Colombia)
- Sandra Cespedes, Felipe Cardona, Ivan Acosta, Paola Barrera, Salome Bonilla, Silvia Forero, Yohn Hernandez, Ana Maria Lopez, Maria Florencia Segovia, Jose Mauricio Marentes, Felipe Lozano, Nelbett Marfisi, Nelly Rubio, 2020, Integral Research Pilot Projects for Unconventionals: the state of the art of shale oil/gas prospectivity in the MMV basin (Colombia)
- P. Cabello1, C. Lopez2, N. Gamba2, M. I. Dussán2, E. Torres2, C. I. Ballesteros-Torres2, M. T. Cantisano2, N. Marfisi2, R. Calvo1, Y. M. Vázquez-Taset3, E. Ramos11, 2019, An integrated approach to define new plays in mature oil basins: the example from the Middle Magdalena Valley basin (Colombia)
- E. R. Pérez, A. Carreño, J. J Gomez, M. R. Pérez, N. Marfisi, Ecopetrol S.A, 2018, Organic porosity study from Upper Cretaceous source rocks in The Middle Magdalena Valley Basin, Colombia
- N. Marfisi, A López, S. Forero, S. Cespedes, P. Barrera, L. A. Barillas, 2016, Optimized Workflow for Electrofacies Characterization Through Heterogenous Rock Analysis and Model Population Using Drill Cuttings for Pilot Wells
- N. Marfisi, S. Forero, A.M. López, S. Cespedes, P. Barrera, R. Pérez, A.M. Carreño, M.R. Pérez, J.J. Gómez, M. Gonzalez, R. Marquez, L. F. Peña, 2014, Análisis Mineralógico En Yacimientos No Convencionales (YNC) Y Su Aplicabilidad En La Identificación De Intervalos Prospectivos Usando Cortes De Perforación
- Nelbett Marfisi, Luisa Ana Barillas, 2014, Optimized lithofacies definition through heterogeneous rock analysis and correlation with core and productivity potential
- Nelbett Marfisi, Edgar R. Pérez C., 2014, Probabilistic Facies Assignments in the La Luna Formation, Middle Magdalena Basin, Colombia, from Standard Well Logs Using Whole Core CT Scan Data as Initialization Input
- Nelbett Marfisi, Henry A. Galvis-Portilla, I. Camilo Higuera-Diaz, Sandra Cespedes, Cesar Ivan Ballesteros, Silvia Forero, Maria Cantisano, Edgar Pineda, Zarith Pachon, Roger M. Slatt, Rigo Ramirez, Georgina Guzman, Angela Torres, 2013, Regional Sequence Stratigraphy of the Upper Cretaceous La Luna Formation in the Magdalena Valley Basin, Colombia
- Elizabeth Diaz, Joel Walls, Nelbett Marfisi, Henry Galvis, Maria Cantisano, Dora Restrepo, 2013, Effective multi-scale rock characterization using digital rock physics applied to la Luna formation, middle Magdalena valley basin, Colombia
- N. Marfisi, S. Cespedes, C. Ballesteros, P. Barrera, M. Cantisano, J. Ceron, S. Forero, H. Galvis, I. Higuera, A. Hurtado, A. Lopez, D. Restrepo, C. Rodriguez, W. Zamora, 2013, Anotaciones Acerca De La Estratigrafía Del Intervalo Cenomaniano-Campaniano Atravesado Por El Pozo La Luna-1, Cuenca Valle Medio Del Magdalena
- Nelbett Marfisi, Edward Tovar, Elizabeth Diaz, Joel Walls, Ingrain Inc, 2014, Estimación de recursos potenciales asociados a lutitas petrolíferas y gasíferas del Valle Medio del Magdalena, Colombia
- Nelbett Marfisi, Maria Teresa Cantisano, 2014, Distribución de facies durante el Eoceno Inferior - Mioceno Inferior en el Sector Central de la Cuenca del Valle Medio del Magdalena, Colombia
- Nelbett Marfisi, Edward Tovar, Elizabeth Diaz, Joel Walls, Ingrain Inc, 2014, Propuesta Metodológica para la recolección y análisis de muestras de mano en Geología de superficie
- Nelbett Marfisi, Edward Tovar, Elizabeth Diaz, Joel Walls, Ingrain Inc, 1999, Levantamiento topográfico y Geoespeleológico de la Cueva de Camilo, San Agustín, Edo Monagas - Venezuela
Web
linkedin.com/in/nelbett-marfisi-71550052
Personal Information
- Date of Birth: 11/10/76
- Nationality: Venezolana
Certificates Courses Training
- 2012, Certificate in Team Player, Ecopetrol
- 2000, Mapas de Subsuelo, PDVSA-CIED
- 2000, Mejoramiento Interno en el Área de Estratigrafía, PDVSA-INTEVEP
- 2003, Oil Field Manager (OFM), CIED- San Tome
- 2003, Old Log Interpretation, ESP - OIL
- 2003, Pressure Transient Analysis, ESP OIL
- 2004, Planificación y Control de Ejecución de Proyectos, TECNOPETROLCA
- 2004, Ingeniería de Yacimientos, TECNOPETROLCA
- 2005, Tecnología Multilateral, HALLIBURTON
- 2005, Taller Básico de Petrofísica, PDVSA
- 2005, Generación de Vapor para Inyección de Yacimientos Petrolíferos, PDVSA
- 2006, Geoestadística, Congreso Venezolano de Geofísica
- 2005, EVALUATING AND DEVELOPING SHALE RESOURCE-SRE, Houston
- 2021, Introducción a la geoquímica y el modelamiento de sistemas, Ecopetrol
- 2021, Regulación de No Convencionales, Ecopetrol
- 2022, Petrophysical Evaluation Core, Ecopetrol
- 2022, Geonavegación en reservorios No Convencionales, Ecopetrol
- 2010, Liderazgo - Alineación de Equipos - Del Miedo a la Confianza, Ecopetrol
- 2013, Congreso AAPG INTERNATIONAL CONFERENCE, Cartagena, 40
- 2013, Congreso AAPG ICE (PONENTE), Cartagena, 40
- 2013, Congreso AAPG GEOSCIENCE TECHNOLOGY, Buenos Aires, 40
- 2013, Congreso Venezolano de Geofísica Curso de Geoestadística, Caracas, 8
Hiking and Trekking
Exploring geological formations and enjoying the outdoors.
Nature Photography
Capturing images of landscapes
Traveling
Visiting different regions
Certification
Unconventional Foundation - Technical by Ecopetrol
spanish
Used in daily communication and professional settings, including client interactions and team collaborations.
Timeline
Sedimentologist for Reservoir Development
ECOPETROL
01.2025 - Current
Fundamentals of Execution By Ecopetrol
11-2023
Geologist/Sedimentologist of Reservoirs
ECOPETROL
01.2023 - Current
Fundamentals of Innovation by Ecopetrol
11-2022
Fundamentals of Energy Transition by Ecopetrol
05-2022
Fundamentals of Agility by Ecopetrol
01-2022
Unconventional Foundation - Technical by Ecopetrol
10-2021
Sedimentologist for Unconventional Play Developmen
ECOPETROL
04.2012 - 01.2023
Sedimentologist in Regional Exploration
ECOPETROL
01.2010 - 04.2012
Geologist/Cluster Leader
PETROCEDEÑO
01.2007 - 01.2010
Geologist
SINCOR
01.2007 - 12.2007
Master of Science - Master's Degree in Earth Sciences
Universidad Central De Venezuela
05.2006 - 12.2006
Internship as a Prerequisite for Master's Degree
SINCOR
02.2006 - 12.2006
Reservoir Development Geologist
PDVSA
06.2003 - 01.2005
Reservoir Development Geologist
GESCA
01.2002 - 12.2002
Engineering Technical Support
PDVSA - Intevep, CARACAS
11.1999 - 08.2001
Internship
PDVSA Intevep
08.1999 - 11.1999
Bachelor of Science - Geological Engineering
University of Oriente
02.1995 - 12.2001
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