March Luncheon - Dr. Wahid Rahman, Impac Exploration

Geochemistry data (source rock maturity, maturity equivalent from oil, bulk molecular compositions (GC) and biomarker (GCMS) ratios) from the extracts of cored or cutting samples vs produced oil from well head have been compared to predict oil family types, migration, mixing of hydrocarbon between various reservoired oils, GOR (gas-to-oil ratio), and allocate production contribution to different reservoirs from different US on shore basins (e.g., Anadarko, Permian, Eagle Ford and Rockies basins). Furthermore, the predicted GOR (gas-to-oil ratio) values from the same oil chemistry data are well matched with the produced GOR and estimated GOR from the recombined fluid samples.

Molecular geochemistry data of rock cuttings collected during drilling can be a cost-effective way to provide a better understanding of hydrocarbon composition and production contribution within a lateral well. Studies have shown that molecular chemistry data can be used via many statistical techniques to identify the end member contribution from different…