Late Jurassic Safer Salt Member in the Al-Jawf sub-basin of NW Sabatayn Basin,Yemen: geochemical evaluation of organic-rich oil-source rock potential |
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| Authors: | Mohammed Hail Hakimi Abdulwahab S Alaug Hussain J Al Faifi Gamal A Alramisy Aref A Lashin |
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| Affiliation: | 1. Geology Department, Faculty of Applied Science, Taiz University, Taiz, Yemen;2. Department of Geology and Geophysics, College of Science, King Saud University, Riyadh, Saudi Arabia;3. Petroleum and Natural Gas Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia;4. Geology Department, Faculty of Science, Benha University, Benha, Egypt |
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| Abstract: | 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 Tmax data indicate that the analyzed shales are immature. |
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| Keywords: | Safer Salt Member shale geochemistry marine reducing conditions oil-generation Al-Jawf sub-basin Yemen |
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