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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
Modeling Petroleum Generation in the Southern Muglad Rift Basin,
Sudan1
1Manuscript received April 13, 1998; revised manuscript received April 5, 1999;
final acceptance May 30, 1999.
2Department of Geology and Petroleum Geology, University of Aberdeen, King's
College, Meston Building, Aberdeen AB24 3UE, Scotland, United Kingdom. Address in Sudan:
Oil Exploration and Production Authority, Ministry of Energy and Mining, Khartoum, Sudan.
3Corresponding author. Department of Geology and Petroleum Geology, University
of Aberdeen, King's College, Meston Building, Aberdeen AB24 3UE, Scotland, United Kingdom;
e-mail: [email protected]
4Department of Geology and Petroleum Geology, University of Aberdeen, King's
College, Meston Building, Aberdeen AB24 3UE, Scotland, United Kingdom.
5PGS Tigress, PSTI Technology, Exploration Drive, Aberdeen AB23 8GX, Scotland,
United Kingdom. Present address: Integrated Interpretation Center, Exploration and
Production Technology, Conoco Inc., Houston PR3036, P.O. Box 2197, Houston, Texas
777252-2197.
ABSTRACT
bottom
-hole temperatures indicates present heat flows around 60 mW/m2
in the well control areas. Using measured vitrinite data as calibrant, maturity can be
modeled equally well with a constant paleoheat flow similar to the present day or with a
complex heat flow pattern related to rifting. A geologically realistic complex heat flow
model was employed to calculate the timing of generation and expulsion from the Lower
Cretaceous lacustrine source rocks of the Abu Gabra and Sharaf formations. Kinetic (Easy%
Ro) calculation of vitrinite maturity indicates a projected oil preservation
depth limit around 4000 m shallowing to around 3500 m northeast of Unity near the basin
margin.
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