%0 Journal Article
%T HYDROCARBON POTENTIAL OF THE UPPER CRETACEOUS COAL AND SHALE UNITS IN THE ANAMBRA BASIN, SOUTHEASTERN NIGERIA
%A Jude E. Ogala
%J Petroleum and Coal
%D 2011
%I Slovnaft V?RUP
%X The hydrocarbon potential of the Upper Cretaceous units (Maastrichtian Mamu Formation) of theAnambra Basin, Southeastern Nigeria was assessed by Rock-Eval pyrolysis. The total organiccarbon (TOC) values range from 0.07 to 61.42 wt. % (averaging 8.54 wt. %). The geneticpotential (GP) and hydrogen index (HI) values range from 0.05 to 332 mg HC/g rock and 40 to771 mg HC /g respectively. These values indicate that the sediments have gas and oil generatingpotential. The organic matter is predominantly gas prone (mostly type III and mixed type III/II).The level of thermal maturity deduced from the production index (0.02 to 0.63), calculatedvitrinite reflectance of 0.47 to 0.78 %Ro and Tmax values between 338 and 441oC suggest that thecoal and shale samples are thermally immature to marginally mature with respect to petroleumgeneration.
%K Production index
%K Coal
%K Hydrocarbon
%K Rock-Eval pyrolysis
%K Vitrinite reflectance.
%U http://www.vurup.sk/sites/vurup.sk/archivedsite/www.vurup.sk/pc/vol53_2011/issue1/pdf/pc_1_2011_ogala_089_1.pdf