Journal
PETROLEUM SCIENCE AND TECHNOLOGY
Volume 37, Issue 6, Pages 645-654Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10916466.2018.1560325
Keywords
Safer Salt Member; shale; geochemistry; marine reducing conditions; oil-generation; Al-Jawf sub-basin; Yemen
Funding
- Petroleum Exploration and Production Authority (PEPA), Republic of Yemen
- Deanship of Scientific Research at King Saud University [RG-1437-041]
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Late Jurassic Safer shales in the Al-Jawf sub-basin are analyzed to evaluate the organic matter input, depositional conditions and petroleum generation potential. The shales have high organic matter, with TOC values of 1.0-13.5% and they contain predominantly Types II and III kerogen, referring to mainly oil- and gas-prone. These kerogens are indicative for dominate marine algal component and some terrestrial organic matter input as indicated from biomarkers. Moreover, the presence of the gammacerane also confirmed a high salinity stratification condition and suggests that the dominate Type II kerogen is rich-sulphur kerogen (Type II-S). The vitrinite reflectance (VRo%) and Rock-Eval pyrolysis T-max data indicate that the analyzed shales are immature.
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