Duggan, Catherine 1
(1)Tullow Oil, Dublin, Ireland.
Key to the thermal maturation of these basins is the nature and thickness of the underlying lithosphere. Several recent publications have focused on this topic and their results have been used to inform basin models of both the Lodwar Basin in Kenya and the Lake Albert Rift, Uganda. In addition, models have incorporated heatflow, temperature and vitrinite reflectance data. Burial histories are presented from the Loperot-1, Lowar Basin and a recent well in Lake Albert to illustrate the timing and extent of maturation in these basins.
Along with thermal maturity, the origin and behavior of the source rocks in these basins is an important factor in determining timing of expulsion of hydrocarbons. Both basins discussed have evidence of a working lacustrine source rock gathered from both lithological and hydrocarbon analysis. Geochemical signatures of these source rocks have also been incorporated to model generation and expulsion.
AAPG Search and Discovery Article #90135©2011 AAPG International Conference and Exhibition, Milan, Italy, 23-26 October 2011.