دورية أكاديمية
Structural features and exploration targets of platform margins in Sinian Dengying Formation in Deyang—Anyue Rift, Sichuan Basin, SW China
| العنوان: | Structural features and exploration targets of platform margins in Sinian Dengying Formation in Deyang—Anyue Rift, Sichuan Basin, SW China |
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| المؤلفون: | Fuying ZENG, Wei YANG, Guoqi WEI, Haiyong YI, Yunxian ZENG, Gang ZHOU, Shiwei YI, Wenzhi WANG, San ZHANG, Qingchun JIANG, Shipeng HUANG, Mingyi HU, Cuiguo HAO, Yuan WANG, Xuan ZHANG |
| المصدر: | Petroleum Exploration and Development, Vol 50, Iss 2, Pp 306-320 (2023) |
| بيانات النشر: | KeAi Communications Co., Ltd., 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Sichuan Basin, Deyang—Anyue Rift, structural type of platform margin, mound-shoal complex on the platform margin, lithologic trap, Sinian Dengying Formation, Petroleum refining. Petroleum products, TP690-692.5 |
| الوصف: | Based on the seismic, logging, drilling and other data, the distribution, structural types and mound-shoal hydrocarbon accumulation characteristics of platform margins of the Sinian Dengying Formation in the Deyang—Anyue Rift and its periphery were analyzed. Four types of platform margins are developed in the Dengying Formation, i.e., single-stage fault-controlled platform margin, multi-stage fault-controlled platform margin, gentle slope platform margin, and overlapping platform margin. In the Gaoshiti West—Weiyuan East area, single-stage fault controlled platform margins are developed in the Deng 2 Member, which trend in nearly NEE direction and are shielded by faults and mudstones, forming fault-controlled—lithologic traps. In the Lezhi—Penglai area, independent and multi-stage fault controlled platform margins are developed in the Deng 2 Member, which trend in NE direction and are controlled by synsedimentary faults; the mound-shoal complexes are aggraded and built on the hanging walls of the faults, and they are shielded by tight intertidal belts and the Lower Cambrian source rocks in multiple directions, forming fault-controlled—lithologic and other composite traps. In the Weiyuan—Ziyang area, gentle slope platform margins are developed in the Deng 2 Member, which trend in NW direction; the mound-shoal complexes are mostly thin interbeds as continuous bands and shielded by tight intertidal belts in the updip direction, forming lithologic traps. In the Gaoshiti—Moxi—Yanting area, overlapping platform margins are developed in the Deng 2 and Deng 4 members; the mound-shoal complexes are aggraded and overlaid to create platform margin buildup with a huge thickness and sealed by tight intertidal belts and the Lower Cambrian mudstones in the updip direction, forming large-scale lithologic traps on the north slope of the Central Sichuan Paleouplift. To summarize, the mound-shoal complexes on the platform margins in the Dengying Formation in the Penglai—Zhongjiang area, Moxi North—Yanting area and Weiyuan—Ziyang area are large in scale, with estimated resources of 1.58×1012 m3, and they will be the key targets for the future exploration of the Dengying Formation in the Sichuan Basin. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Chinese |
| تدمد: | 1876-3804 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S1876380423603891; https://doaj.org/toc/1876-3804 |
| DOI: | 10.1016/S1876-3804(23)60389-1 |
| URL الوصول: | https://doaj.org/article/30681e36186c486880fed276b93e2b2f |
| رقم الأكسشن: | edsdoj.30681e36186c486880fed276b93e2b2f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18763804 |
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| DOI: | 10.1016/S1876-3804(23)60389-1 |