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Quantitative evaluation of hydrothermal fluids and their impact on diagenesis of deep carbonate reservoirs: Insights from geochemical modeling

文献类型：期刊论文

作者Dong, Yanhui1,3,4; Duan, Ruiqi1,3,4; Li, Zhong1,3,4; Lu, Xiuxiang2; Cai, Chunfang1,4; Liu, Jiaqing1,4; Wang, Liheng3,4
刊名MARINE AND PETROLEUM GEOLOGY
出版日期2021-02-01
卷号124页码:16
关键词Deep carbonates Hydrothermal dolomitization Reservoir porosity modification Geochemical modeling Quantitative evaluation Tarim basin
ISSN号0264-8172
DOI10.1016/j.marpetgeo.2020.104797
英文摘要Hydrothermal dolomitization is an important diagenetic process that affects the quality of carbonate reservoirs. While geochemical modeling is a useful tool to improve our understanding of this process, comparatively little research has been focused on producing reservoir intervals. This study examines deeply buried (over 4500 m deep), Lower Ordovician dolomitized limestones (more than 50 m revealed by the borehole) in an exploration well in the Tazhong Uplift, Tarim Basin. The well penetrated a fault zone that was affected by extensive hydrothermal activity during the Permian. Batch geochemical modeling and reactive transport modeling (RTM) were used to evaluate the potential sources of hydrothermal fluid and the associated mechanisms that resulted in a relatively restricted distribution of dolomitization in the study area. Simulation results show that the RTM, which can include geological heterogeneity, provides more reliable constraints for the volume of hydrothermal fluids required for the observed scale of dolomitization, compared to batch geochemical modeling. According to the simulation results, the interstitial fluids released from underlying Cambrian formations due to high pressure and high temperature are not the only source of hydrothermal dolomitization. Other mechanism like long-lasting recharge of seawater-derived basement brines may be took place. Scenario simulations also indicate that the patterns of hydrothermal dolomitization and porosity distributions are strongly related to permeability heterogeneity in the formation. This study shows the ability and feasibility of geochemical modeling as a tool to quantitatively evaluate and further understand hydrothermal dolomitization processes, which are also helpful for other similar geological process research. However, reliable and detailed geological information, geological constrains, especially geological heterogeneity distributions, are crucial to achieve beneficial conclusions.
WOS关键词TARIM BASIN ; MAESTRAT BASIN ; TAZHONG UPLIFT ; LOWER ORDOVICIAN ; PERMEABILITY ; DOLOMITE ; POROSITY ; AREA ; DOLOMITIZATION ; TRANSPORT
资助项目National Major Science and Technology Projects of China[2017ZX05008003-021]
WOS研究方向Geology
语种英语
WOS记录号WOS:000608738300002
出版者ELSEVIER SCI LTD
资助机构National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China ; National Major Science and Technology Projects of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/100039]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Dong, Yanhui
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.China Univ Petr, Coll Geosci, State Key Lab Petr Resource & Prospecting, Beijing 102249, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Dong, Yanhui,Duan, Ruiqi,Li, Zhong,et al. Quantitative evaluation of hydrothermal fluids and their impact on diagenesis of deep carbonate reservoirs: Insights from geochemical modeling[J]. MARINE AND PETROLEUM GEOLOGY,2021,124:16.
APA Dong, Yanhui.,Duan, Ruiqi.,Li, Zhong.,Lu, Xiuxiang.,Cai, Chunfang.,...&Wang, Liheng.(2021).Quantitative evaluation of hydrothermal fluids and their impact on diagenesis of deep carbonate reservoirs: Insights from geochemical modeling.MARINE AND PETROLEUM GEOLOGY,124,16.
MLA Dong, Yanhui,et al."Quantitative evaluation of hydrothermal fluids and their impact on diagenesis of deep carbonate reservoirs: Insights from geochemical modeling".MARINE AND PETROLEUM GEOLOGY 124(2021):16.

入库方式： OAI收割

来源：地质与地球物理研究所

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