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The Exquisite Comparison of Shale Mineralogical-Geochemical Characteristics between Chang 7 Member and Chang 9 Member in Yanchang Formation, Ordos Basin

文献类型：期刊论文

作者Zhang, Wang4; Liang, Xinping3; Li, Peng1; Liu, Guoheng2; Qian, Jin
刊名GEOFLUIDS
出版日期2023-08-16
卷号2023页码:22
ISSN号1468-8115
DOI10.1155/2023/5039604
英文摘要Significant amounts of unconventional oil and gas resources have been discovered in the Yanchang Formation of Ordos Basin. Shale layers deposited in Chang 7 member (divided into Chang 7-2 submember (C7-2SM) and Chang 7-3 submember (C7-3SM) and Chang 9 member (C9M)) are the main source rocks. Based on the comparison of mineralogical and geochemical characteristics, it is concluded that (1) in terms of mineralogical characteristics, the C7-3SM shale possesses the largest content of illite/smectite mixed layer and reducing minerals and the least quantity of quartz. The C9M shale shows the highest percentage of quartz and illite and the least amount of K-feldspar and Kaolinite. In C7-2SM and C9M shale, amorphous silica surrounded tightly by clay minerals is easily observed by the scanning electron microscopy. Besides the drilling orientation, the small content of quartz contributed to the lowest porosity for the C7-3SM shale. (2) In terms of geochemical characteristics, the C7-3SM shale exhibits high productivity due to type II1 kerogen. The organic matter in the C7-2SM and C9M shale contains mainly type II2 and possibly type III kerogen. The C9M shale exhibits the highest organic thermal maturity. The C7-3SM shale was formed in a relatively higher salinity of sedimentary water.
WOS关键词SOURCE ROCKS ; LACUSTRINE SHALE ; BARNETT SHALE ; GAS ; MUDSTONES ; MECHANISM ; SYSTEMS ; CHINA ; SOUTH
资助项目This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; [33550000-22-ZC0613-0006]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:001054942100001
出版者WILEY-HINDAWI
资助机构This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; This work was performed under financial support of the State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development (Grant No. 33550000-22-ZC0613-0006). ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development
源URL[http://ir.iggcas.ac.cn/handle/132A11/111399]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Zhang, Wang
作者单位1.SINOPEC, State Key Lab Shale Oil & Gas Enrichment Mech & Ef, Beijing 100083, Peoples R China
2.China Univ Petr East China, Sch Geosci, Qingdao 266580, Peoples R China
3.Peking Univ, Inst Energy, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Wang,Liang, Xinping,Li, Peng,et al. The Exquisite Comparison of Shale Mineralogical-Geochemical Characteristics between Chang 7 Member and Chang 9 Member in Yanchang Formation, Ordos Basin[J]. GEOFLUIDS,2023,2023:22.
APA Zhang, Wang,Liang, Xinping,Li, Peng,Liu, Guoheng,&Qian, Jin.(2023).The Exquisite Comparison of Shale Mineralogical-Geochemical Characteristics between Chang 7 Member and Chang 9 Member in Yanchang Formation, Ordos Basin.GEOFLUIDS,2023,22.
MLA Zhang, Wang,et al."The Exquisite Comparison of Shale Mineralogical-Geochemical Characteristics between Chang 7 Member and Chang 9 Member in Yanchang Formation, Ordos Basin".GEOFLUIDS 2023(2023):22.

入库方式： OAI收割

来源：地质与地球物理研究所

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