Selim S. Shaker is Director and Consulting Geologist for Geopressure Analysis Services Inc. (G.A.S). He received a B.Sc. (honor) in Applied Geology, M.Sc and Ph.D. (1973) in Geology from Assiut University, Egypt. He also received a diploma in Hydrogeology (1975) from Prague University (UNESCO).
With over 30
years in the oil industry,he started his career in Egypt as well-site,
stratigrapher and structural geologist. During his 20 years of domestic
service with Phillips Petroleum, his main function as Exploration Geologist
was prospects generation in offshore Gulf of Mexico and
onshore Coastal areas. He discovered and developed more than 200 MMBOE,
and also evaluated several exploration projects in Egypt, NW Australia,
Libya, Algeria, the North Sea and China.
After retiring in 2000,
Dr. Shaker established G.A.S. to focus on evaluating the impact of
geopressure compartmentalization, seal inegrity and salt interaction
on leads and prospects on the Shelf and Deep Water of the Gulf of
Mexico. Pre and Post drilling risk assessment of a prospect is his
specialty. As a pioneering geoscientist, his recent domain is building
the geological foundation for pore pressure prediction.
He
was the first to recognize:
• Geopressure transgression and regression
due compartmentalization
• The disparity between predicted pore pressure
and measured pore pressure
• Supra and subsalt geopressure models
•
Pitfalls of converting PP from psi to ppg mwe in reservoir rocks
• The qualification of centroid phenomenon in the subsurface geopressure
• Velocity cross over due geopressure and the impact on AVO assessments
His
new method of NCT (normal compaction trend) calculation will eliminate
a serious mistakes and mishandling of pore pressure prediction
modeling
Active Memberships: AAPG, Society of Exploration
Geophysicists (SEG), Houston Geological Society (HGS), Geophysical
Society of Houston (GSH), Geological Modeling Society of Houston (GMSH)
and AADE (American Association of Drilling Engineers)
Dr. Shaker has
published several papers and articles regarding pore pressure predictions
and the impact of geological settings on subsurface geopressure profile
and risk assessments (see list of publications on this website).
