ABSTRACT
a detailed geological and geochemical evaluation of source rocks and related crude oils in the Gulf of Suez basin, included investigation of 286 rock and 53 crude oil samples has been undertaken. The core and cutting samples were selected from 16 wells representing 10 off- and on-shore oilfields in the Gulf of Suez, Egypt. The rock samples were analysed using LECO Analyser for their organic carbon content and also by infrared spectroscopy for the classification of the type and thermal maturation of kerogen. Lithologic variations were determined based on X-ray diffraction and IR-mineral analyses. The results of screening analyses were used to select samples for subsequent, more detailed, organic geochemical analyses (GC, GC-MS and Py-GC). Successful oil/source rock correlation was only possible by the combination of various parameters and techniques. More than thirty biomarker parameters have been discussed and used to assess the source and maturity of oils. Different families of oil have been recognised (I-III and one subgroup IIA). Oil generation of some wells was modelled using a modified Lopatin approch.
