Geochemistry as the most useful tool for evaluating conventional and unconventional Plays

Dr. Wahid Rahman, Petroleum Geochemist,
Geoscience and Petroleum Research Inc, Irving, Texas

Who Should Attend?

Geologists, Geophysicist, Petrophysicists, Petroleum Engineers who are working both conventional and unconventional plays with any level of experience in the industry and Students


This is a one-day short course on application of petroleum geochemistry for geologists, geophysicists, petroleum engineers, and petrophysicists. This course will provide introduction and evolution on conventional and unconventional plays and the intent is to cover geochemical methods, concepts and basic definitions: total organic carbon (TOC), organic facies (kerogen/macerals types), vitrinite reflectance/thermal maturity (Ro) and its equivalent (VRoE) from bitumen, pyrolysis data (hydrogen index, Tmax,) and biomarkers (from produced oils or rock extracts), mud and produced gas chemistry, Level of Organic Maturation (LOM), prediction of hydrocarbon phase, API gravity, gas-to-oil ratio (GOR), condensate-to-gas ratio (CGR), and some basin modeling aspects of geochemistry data. It will also cover oil to oil and oil to source rock chemistry correlations through Source Rock (e.g. TOC, SRA, Rock-Eval) and produced hydrocarbon (oil and gas) chemistry data. There will be examples from different US onshore unconventional resource plays and conventional plays from published data. Course attendees will be able to learn the fundamentals and application of geochemistry to exploration, development and production of oil and gas in both conventional and unconventional plays.

Instructor's Bio

Dr. Mohammad “Wahid” Rahman is currently working as a Petroleum Geochemistry Consultant/Director at Geoscience and Petroleum Research Inc, Irving, Texas, USA. Dr. Rahman has 17+ years of industry (Devon Energy and Pioneer Natural Resources), academic, and research experience in the field of geochemistry and geology; provided geochemistry services for most of the North American onshore unconventional plays/basins, and conventional petroleum plays, basin modeling, behavior of reservoir fluids, petrophysical data calibration, and reservoir characterization. Wahid’s research interest include organic geochemistry, Isotope geochemistry, surface geochemistry, conventional and unconventional resource play evaluation, HC migration pathway analysis, thermal maturity of organic matter (OM) and hydrocarbons (oil and gas), relationship between OM maturity versus Gas Oil Ratio (GOR), pressure gradient, kerogen/OM density, formation water geochemistry to figure out reservoir continuity, water resistivity (Rw), water saturation (Sw), inorganic geochemistry, well completion geochemistry, stable isotope geochemistry, production allocation and reservoir geochemistry. Wahid has over 35 conference presentations, papers, and peer-reviewed journals in the field of geochemistry and geology. He received his Ph.D. in Organic Geochemistry from Southern Illinois University, Carbondale, IL; M.S. in Geology from Auburn University, Auburn, AL; M.S. and B.S. in Geology from University of Dhaka, Dhaka, Bangladesh.