Abstract
Owing to a lack of confidence and reliability in measured log temperatures, a simplified temperature correction was applied to compensate for the error at every measured temperature of about 13º F. Corrected temperatures and corrected burial depth were used to predict generation time for various locations and sites in Sirt Basin. Evaluation of collected data indicates that source rocks and maturation of the kerogens are restricted to central parts of Zallah, Al Kotlah, Hameimat, Ajdabiya, and southern Al Kotlah. Hagfa troughs. Generation time is estimated to be late Eocene to early Miocene and progressed forward as subsidence and sedimentation continued. Generation and migration are closely related time-wise, and faults are the main element that connected reservoirs to the source beds under consideration. Migration of hydrocarbon to the reservoirs within trough systems and to the adjacent platform is thought to be of short distance. Hydrocarbon accumulations prior to the late tilting (southeast) of the platforms of Sirt Basin reacted to the resulted structural configuration and formed the present accumulations.