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Natural gas migration and accumulation model and favorable exploration targets in Ordovician dolomite in Jingxi, Ordos Basin
Liu, JD; Jiang, YL; Liu, XS; Zhu, RW; Liujingdong@upc.edu.cn
2018
发表期刊ENERGY EXPLORATION & EXPLOITATION
卷号36期号:3页码:373-387
摘要The Ordovician dolomite reservoir in Ma5(5)-Ma5(10) sub-members in Jingxi in Ordos Basin is a newly discovered field with multiple natural gas pools. The gas accumulation patterns of the reservoir are unclear. Considering the geological background, the genesis, migration, and accumulation of natural gas in Jingxi were studied systematically, and favorable exploration targets were predicted. Natural gas in Ma5(5)-Ma5(10) sub-members is a mixture of Upper Paleozoic and Ordovician products. The Upper Paleozoic coaliferous gas was mainly expulsed downward through the hydrocarbon-providing window where the coal-bearing source rocks made contact with the dolomite reservoirs. The gas then migrated from west to east and accumulated under the condition of lithology variation. The Ordovician petroliferous gas mainly migrated from bottom to top through fractures and mixed with the coaliferous gas in Ma5(5)-Ma5(10) sub-members. The natural gas reservoir formation model was summarized as the migration of gas over a short distance and partial charging into the dolomite reservoirs from the Late Triassic to Middle Jurassic, and the migration of gas over a long distance and massive charging into the dolomite reservoirs during the Late Cretaceous. Ma5(5) and Ma5(6) sub-members are the focus of further exploration, and petroliferous gas in Ma5(7)-Ma5(10) sub-members deserves attention. The dolomite reservoirs of the hydrocarbon-providing windows and the east of these locations are the favorable exploration targets.
部门归属[Liu, Jingdong; Jiang, Youlu] China Univ Petr East China, Sch Geosci, Qingdao 266580, Peoples R China; [Liu, Xinshe] PetroChina Changqing Oilfield Co, Explorat & Dev Res Inst, Xian, Shaanxi, Peoples R China; [Zhu, Rongwei] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China
学科领域Energy & Fuels
关键词[WOS]Natural gas genesis ; natural gas migration ; favorable gas exploration targets ; dolomite reservoir ; Ordovician ; Ordos Basin
资助项目MSG
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17137
专题中科院边缘海地质重点实验室
通讯作者Liujingdong@upc.edu.cn
推荐引用方式
GB/T 7714
Liu, JD,Jiang, YL,Liu, XS,et al. Natural gas migration and accumulation model and favorable exploration targets in Ordovician dolomite in Jingxi, Ordos Basin[J]. ENERGY EXPLORATION & EXPLOITATION,2018,36(3):373-387.
APA Liu, JD,Jiang, YL,Liu, XS,Zhu, RW,&Liujingdong@upc.edu.cn.(2018).Natural gas migration and accumulation model and favorable exploration targets in Ordovician dolomite in Jingxi, Ordos Basin.ENERGY EXPLORATION & EXPLOITATION,36(3),373-387.
MLA Liu, JD,et al."Natural gas migration and accumulation model and favorable exploration targets in Ordovician dolomite in Jingxi, Ordos Basin".ENERGY EXPLORATION & EXPLOITATION 36.3(2018):373-387.
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