الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Integrated 1D basin modeling is applied to evaluate the thermal history of the sedimentary sequence in the Ras Budran Oilfield. Best accordance between measured and calculated present-day temperatures was achieved with present-day heat flows in the range of 49-53 mW/m2. The results of the 1D simulations show the differences in burial, thermal and maturity history. The burial history of the study area is represented by time-depth history plots that show the burial of different horizons traced through time, from deposition to present day. Oil generation window of Thebes-S2 after both the Oligocene Rifting Phase and its associated thermal subsidence that accompained the deposition of the Lower Rudeis Formation and before the maximum burial depth have been attained. Hydrocarbon generation is mainly related to basin evolution. Oil generation window of Thebes-S1 after both the Oligocene Rifting Phase and its associated thermal subsidence that accompanied the deposition of the Lower Rudeis Formation and before the maximum burial depth have been attained.The expulsion of the hydrocarbons of Thebes-S1 has occurred mainly during the Missinian Time Event and after the generation of the gas. Oil generation window of Duwi-S after both the Oligocene Rifting Phase and its associated thermal subsidence that accompained the deposition of the Lower Rudeis Formation and before the maximum burial depth have been attained. Hydrocarbon generation is mainly related to exchange of basin evolution at RB-A5, Rb-B1, RB-B3 and RB-B4 well and basin burial at RB-A1 well.Oil generation window of Wata-S after both the Oligocene Rifting Phase and its associated thermal subsidence that accompained the deposition of the Lower Rudeis Formation and before the maximum burial depth have been attained. Hydrocarbon generation mainly related to exchange of basin evolution and burial. The reservoir thermal history, based on a well-calibrated model, is more than 160°f and less than 360°f, since ~17.2 Mabp ”Burdigalian” where the first expulsion of the Wata-S, Duwi-S and Thebes-S2 has occurred at all wells allover the entire area except in RB-A2 and EE85-2 wells. This may suggest no biodegradation effect and suggests a thermodynamically stable crude oil without any possibility to secondary cracking gas generation.The generated hydrocarbon partially accumulated in the source rock and adsorbed by the organic matter. Not all expelled hydrocarbons has accumulated in the reservoir but mostly was lost through the migration pathways.