Maurice Nessim


Maurice Nessim, president of WesternGeco, is a member of the SEG Foundation Board of Directors and Board Member of the International Association of Geophysical Contractors (IAGC). He has a BSc and an MSc in physics, nuclear physics, and geophysics, and has won several prestigious awards and patents, including the Schlumberger Chairman’s Award.

He has authored and coauthored more than 25 technical papers that have been presented at various international conferences. He has been an SEG active member since 1991, and is a member of the European Association of Geoscientists and Engineers, Society of Petroleum Engineers, and American Association of Petroleum Geologists.

Nessim served as 2015–2016 SEG Director at Large and, in 2017, was elected board member of the SEG Foundation and chairman of the IAGC. In 2018, Nessim was appointed as a board member of the Houston-based Technology Collaboration Center, an organization that fosters collaboration across technology sectors — including space, medical, and energy — to address real-world problems.

Nessim has more than 35 years of oil and gas industry experience in various technical and management positions. He joined WesternGeco as a geophysicist in 1981 and has served as area vice president for the Middle East and Asia, area vice president for North and South America, and global vice president of operations. He was vice president of marketing and technology for the Schlumberger Reservoir Management group and president of Schlumberger PetroTechnical Services. He was also a cofounder of the Sea Exploration Association and founder of the Schlumberger Area Geophysicists program to develop petrotechnical expertise. He was named to his current position as WesternGeco president in 2015.

With Schlumberger’s foundation of the Geoscientists without Boarders® (GWB), Nessim has been one of the key drivers over the past decade championing GWB’s mission to support the humanitarian applications of geoscience around the world through promoting the message as well as through funding at both the personal and corporate levels. GWB also supports academia with more than 500 undergraduate, graduate, and continuing education students in countries around the world participating in global projects.

Participating Session:

Plenary Session: Fresh Ideas:

Embrace the Future - Doing Things Differently to Unlock Oil and Gas Potential

DAY 1 | 29 OCTOBER 2019
Plenary Theatre
More Details

Maurice Nessim

Date: 25 – 28 OCTOBER 2019


4-days pre-conference fieldtrip that provides the setting of modern reef systems of Pulau
Seribu. This fieldtrip will provide details of the sedimentology and components of carbonate
Sediment and reef building organisms specific to Kepulauan Seribu, which is typical reefs of the region.

Good understanding on depositional environment and facies variation in carbonate rock is an important aspect of the study. Carbonate reservoir’s properties are the direct results of their depositional fabric and diagenesis process. Hence, the proposed fieldworks aims to provide an opportunity for participants to enhance knowledge on carbonate depositional environments, sedimentary facies and related secondary processes that controlled and characterised the carbonate reservoir’s properties.


Kepulauan Seribu is a cluster of about 128 small islands in the Bay of Jakarta in the Java Sea.
Participants will be based at Pulau Putri Resort throughout the stay at Kepulauan Seribu. It is located approximately 45 km north of Jakarta and can be reached in one hour and a half by speed boat.

Study of carbonates in Kepulauan Seribu offers the opportunity to observe and investigate modern carbonate sediments, reef building processes and evolution, facies distribution, build-up geometries and early diagenetic processes. Carbonates in this area exhibit characteristics that can be associated with global trends for Oligocene – Miocene rocks and provide useful analogues for carbonate fields in Central Luconia region.

Othman Ali bin Mahmud Head,
Stratigraphy & Sedimentology Department, EGRS, PETRONAS


Delegate Registration:

Intan: +603 2171 3597 / +6012 342 2979
Rezza: +603 2171 3586 / +6012 624 3579

Exhibition Enquiries:

Nazharudin: +603 2171 3519 / +6012 276 2804
Faiz: +603 2171 3598 / +6012 698 5264

Sponsorship Opportunities:

Puteri: +603 2171 3584 / +6012 970 0885
Haziq: +603 2171 3456 / +6017 650 8136

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