Dr Faruq Umar Z's research grant

Lead Researcher

Title Dr
Firstname Umar
Middlename Z
Surname Faruq
Phone 07031934949
Email ufzakigwandu@yahoo.co.uk

Research Grant Details

Research Topic Geochemical Evaluation and Mapping of the Potential Source Rock in Sokoto Basin in Nigeria
Benefit to Oil and Gas Geochemical Evaluation and Mapping of the Potential Source Rock in Sokoto Basin in Nigeria
Research Duration 2
University Usmanu Danfodiyo University
Abstract Hydrocarbon generating capacity of the potential source rocks in Sokoto Basin was investigated. A field work was conducted across the entire Basin where a total of 370 samples were collected out of which fifty four (54) samples were screened at different phases and analyzed using total organic carbon content (TOC), Rock-Eval Pyrolysis, bitumen extraction, soluble organic matter (SOM) determination, column chromatography, gas chromatography-mass spectrometry (GC-MS).Vitrinite reflectance and biomarker analysis and its diagnostic ratios were calculated. The results show that the rocks were deposited under suboxic conditions in a marine and lacustrine environment in Dukamaje Formation with terrestrial inputs in Taloka Formation. Good TOC values were obtained from Taloka Formation (9.6 wt%) and Dukamaje Formation (5.74wt%). High extractable organic matter content, and hydrocarbon yields exceeding 10,000 ppm were obtained from Dukamaje and Taloka formations. The Rock-Eval pyrolysis results indicated Type II/III and Type III kerogens for Dukamaje and Taloka/Dange Formations respectively. The evolutionary thermal maturity of the sediments from the shallow wells and borehole samples was deduced from the Tmax (°C), production index (PI), calculated vitrinite reflectance (Rc), bitumen extract parameters and biomarker diagnostic ratios. Thermal maturity of the studied areas indicated that Taloka Formation and Dange Formation are immature while Dukamaje Formation revealed some variations from immature to marginally mature levels. On the overall, these data revealed that the shallow samples collected are thermally immature to marginally sub-mature for hydrocarbon generation and expulsion. However, thermally matured rocks are expected at proper depth suggesting that that there exist conditions in the basin that favoured good to excellent organic matter production and preservation with excellent possible hydrocarbon generation and expulsions at proper burial depth especially for gas generation with poor to fair or lean liquid hydrocarbon generative potential.

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