期刊
MARINE AND PETROLEUM GEOLOGY
卷 35, 期 1, 页码 28-40出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marpetgeo.2012.03.001
关键词
EVE; NDR; Oleananes; Khatatba Formation - Abu Roash-F; Member; Abu Gharadig Basin
资金
- Molecular Organic Geochemistry Industrial Affiliates (MOGIA) of Stanford University
The objective of this study is to establish the relationship between the hydrocarbons recovered from the Abu Gharadig Basin and Middle Jurassic Khatatba Formation, as well as the previously established Upper Cretaceous Abu Roash-F Member. A suite of fourteen crude oil and condensate samples from the Mesozoic reservoirs (Jurassic-Cretaceous) of the Abu Gharadig Basin (Western Desert, Egypt) was analyzed and geochemically compared with extracts from source rocks of the Middle Jurassic (Khatatba Formation) and the Upper Cretaceous (Abu Roash-F Member). Based on molecular indicators of organic source input, depositional environment and age-diagnostic biomarkers, at least two petroleum systems operate in the Abu Gharadig Basin; those derived from Late Cretaceous marine shales and Jurassic-Early Cretaceous non-marine organic-rich shales as source rocks and possibly a third system appears to be a mixture of them both. The correlation of some Abu Gharadig oils to a Late Cretaceous source establishes a petroleum system involving these marine Cretaceous source rocks. (C) 2012 Elsevier Ltd. All rights reserved.
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