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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Tectonic-fluid evolution of an ultra-deep carbonate reservoir in the southern Halahatang Oilfield area, Tarim Basin, NW China

文献类型：期刊论文

作者Liu, Jiaqing1,4; Li, Zhong1,4; Wang, Xu3; Jiang, Lei3; Feng, Yunxian1,4; Wallace, Malcolm W.2
刊名MARINE AND PETROLEUM GEOLOGY
出版日期2022-11-01
卷号145页码:25
关键词Tectonic fluids Deeply burial carbonate reservoir Ordovician Tarim basin NW China
ISSN号0264-8172
DOI10.1016/j.marpetgeo.2022.105870
英文摘要Several giant oilfileds have been discovered during recent exploration in the Ordovician carbonates in zone between the Awati and Manjiaer depressions, Tarim Basin, China. These oilfields are deeply buried (> 7000 m), and most productive wells are found adjacent to fault zones, suggesting faults may play a crucial role in reservoir development. Here, we use petrographic, microanalytical and geochemical techniques on different stages of void-filling calcite cements to decipher the tectonic-fluid evolution history. Vugs are generally occluded by V1 and V2 calcite cements, which precipitated from marine and burial diagenetic fluids. Two major episodes of fluid in-vasion are evident in each set of fractures from Middle Ordovician strike-slip faults (F1) to Late Devonian to the Permian strike-slip faults (F2). The sub-horizontal fracture-filling F1 calcite cements show the involvement of near-surface marine to marine-evolved brines, given that delta(18)Ocarb, restored delta(18)Ow values and rare earth element and yttrium (REY) profiles of F1-1 calcite cements are comparable to Ordovician seawater. The F1-2 calcite cements are characterized by negative delta(18)Ocarb, positive restored delta(18)Ow, and apparent Ce positive anomalies. The sub-vertical fracture-filling ferroan F2-1 calcite cements with fluorescence show the highest restored T(delta(47)) (up to 125 ?C), high restored delta 18Ow values (up to +7.0%o VSMOW), and an enrichment in MREE, which is consistent with an origin from hot hydrocarbon-bearing basinal brines. The subsequent F2-2 calcite cements may have precipitated during the Late Permian from mixing of basinal brines and deeply circulated meteoric water, as suggested by significantly negative delta(18)Ocarb values, cooler restored T(delta(47)), negative restored delta(18)Ow values (down to-5.9%o VSMOW), and flat REY patterns. The Sr-87/Sr-86 ratios of calcite cements are similar to coeval seawater. This study highlights the importance of fault-related fluid circulation in the development of a hydrocarbon reservoir, and may be applicable to other deep carbonate-hosted reservoirs.
WOS关键词RARE-EARTH-ELEMENTS ; THERMOCHEMICAL SULFATE REDUCTION ; CLUMPED ISOTOPE ; HYDROTHERMAL ALTERATION ; DIAGENETIC PROCESSES ; FAULT SYSTEMS ; U-PB ; POROSITY ; ROCKS ; DOLOMITIZATION
资助项目Strategic Priority Research Program Grant of the Chinese Academy of Sciences[XDA14010201-02] ; National Science and Technology Major Project of China[2017ZX05008-003]
WOS研究方向Geology
语种英语
WOS记录号WOS:000862165300001
出版者ELSEVIER SCI LTD
资助机构Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/108332]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Zhong
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Melbourne, Sch Earth Sci, Parkville, Vic 3010, Australia
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jiaqing,Li, Zhong,Wang, Xu,et al. Tectonic-fluid evolution of an ultra-deep carbonate reservoir in the southern Halahatang Oilfield area, Tarim Basin, NW China[J]. MARINE AND PETROLEUM GEOLOGY,2022,145:25.
APA Liu, Jiaqing,Li, Zhong,Wang, Xu,Jiang, Lei,Feng, Yunxian,&Wallace, Malcolm W..(2022).Tectonic-fluid evolution of an ultra-deep carbonate reservoir in the southern Halahatang Oilfield area, Tarim Basin, NW China.MARINE AND PETROLEUM GEOLOGY,145,25.
MLA Liu, Jiaqing,et al."Tectonic-fluid evolution of an ultra-deep carbonate reservoir in the southern Halahatang Oilfield area, Tarim Basin, NW China".MARINE AND PETROLEUM GEOLOGY 145(2022):25.

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来源：地质与地球物理研究所

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