Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/07072018176 |
Geochemical characterization and classification of crude oils of the Permian Basin, west Texas and southeastern New Mexico | |
Simon Echegu; Adry K. Bissada; Louis Elrod | |
2021-01-15 | |
发表期刊 | AAPG Bulletin
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出版年 | 2021 |
英文摘要 | Fifty crude oils from reservoirs ranging in age from Cambrian to late Permian and distributed widely over the Permian Basin were geochemically characterized to assess their stratigraphic interrelationships and provenance. Detailed characterization using stable carbon isotopic composition and biomarker characteristics recognized five genetic groups. Genetic group I oils originate from a type II kerogen, Ordovician marine shale (Simpson Group) source rock deposited under anoxic conditions. Genetic group II oils, believed to be sourced from two kitchens, originate from type II/III kerogen Devonian marine shale (Woodford Shale) source rock deposited under anoxic to suboxic environments. Genetic group III oils are similar in many respects to group II oils. This group, however, shows evidence of significant terrigenous organic matter input. Genetic group III oils, single kitchen–derived oils, are inferred to be sourced from the Mississippian shale (Barnett Shale). Oils of genetic group IV are sourced from two kitchens and generated from the Cisuralian Wolfcamp shale source rock having type II/III kerogen deposited under anoxic–suboxic environments. Group V oils are derived from carbonate-rich shales (marls) of the Cisuralian Bone Spring Formation, having type II kerogen deposited under extremely anoxic environments. With the exception of Devonian- and Mississippian-sourced oils, which occur across a large stratigraphic interval (Cambrian–Ordovician to Permian), the rest of the genetic oil groups occur in close proximity to their candidate source rocks. Although no source rock samples were used in this study, the detailed geochemical study of oils has provided an understanding of the stratigraphic relationships between oils and their inferred source rocks. |
领域 | 地球科学 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/311280 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Simon Echegu,Adry K. Bissada,Louis Elrod. Geochemical characterization and classification of crude oils of the Permian Basin, west Texas and southeastern New Mexico[J]. AAPG Bulletin,2021. |
APA | Simon Echegu,Adry K. Bissada,&Louis Elrod.(2021).Geochemical characterization and classification of crude oils of the Permian Basin, west Texas and southeastern New Mexico.AAPG Bulletin. |
MLA | Simon Echegu,et al."Geochemical characterization and classification of crude oils of the Permian Basin, west Texas and southeastern New Mexico".AAPG Bulletin (2021). |
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