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The genesis model of carbonate cementation in the tight oil reservoir: A case of Chang 6 oil layers of the Upper Triassic Yanchang Formation in the western Jiyuan area, Ordos Basin, China

文献类型：期刊论文

作者Li, Shutong5; Li, Shixiang1; Zhou, Xinping1; Ma, Xiaofeng5; Guo, Ruiliang2,3,4; Zhang, Jiaqiang2,5; Chen, Junlin2,5
刊名OPEN GEOSCIENCES
出版日期2020
卷号12期号:1页码:1105-1115
关键词carbonate cementation Yanchang formation genesis model Ordos Basin tight oil reservoir
ISSN号2391-5447
DOI10.1515/geo-2020-0123
英文摘要Carbonate cementation is one of the significant tightness factors in Chang 6 reservoir of the western Jiyuan (WJY) area. Based on the observation of core and thin sections, connecting-well profile analysis as well as carbon and oxygen isotope analysis, it is found that ferrocalcite is the main carbonate cements in the Chang 6 reservoir of the WJY area. The single sand body controls the development of carbonate cements macroscopically. Both carbonate cements and calcite veins hold similar diagenetic conditions: the dissolution of plagioclase is the main calcium source and the de-acidification of organic acids is the main carbon source. The diagenetic stage is identified as the mesogenetic A stage. The sedimentary environment is of low salinity. Accordingly, the development model of carbonate cementation in Chang 6 reservoir is summarized into three types: "eggshell pattern," "cutting pattern," and "favorable reservoir pattern." The development degree of carbonate cementation affects the physical properties of reservoir.
WOS关键词QUALITY ; SANDSTONES
资助项目National Natural Science Foundation of China[41772142] ; National Natural Science Foundation of China[41802160]
WOS研究方向Geology
语种英语
WOS记录号WOS:000590074400001
出版者DE GRUYTER POLAND SP Z O O
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/98724]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Li, Shutong; Guo, Ruiliang
作者单位1.PetroChina Changqing Oil Field Co, Xian 710018, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China
4.Xian Shiyou Univ, Shaanxi Key Lab Petr Accumulat Geol, Xian 710065, Peoples R China
5.Chinese Acad Sci, Key Lab Petr Resources, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Li, Shutong,Li, Shixiang,Zhou, Xinping,et al. The genesis model of carbonate cementation in the tight oil reservoir: A case of Chang 6 oil layers of the Upper Triassic Yanchang Formation in the western Jiyuan area, Ordos Basin, China[J]. OPEN GEOSCIENCES,2020,12(1):1105-1115.
APA Li, Shutong.,Li, Shixiang.,Zhou, Xinping.,Ma, Xiaofeng.,Guo, Ruiliang.,...&Chen, Junlin.(2020).The genesis model of carbonate cementation in the tight oil reservoir: A case of Chang 6 oil layers of the Upper Triassic Yanchang Formation in the western Jiyuan area, Ordos Basin, China.OPEN GEOSCIENCES,12(1),1105-1115.
MLA Li, Shutong,et al."The genesis model of carbonate cementation in the tight oil reservoir: A case of Chang 6 oil layers of the Upper Triassic Yanchang Formation in the western Jiyuan area, Ordos Basin, China".OPEN GEOSCIENCES 12.1(2020):1105-1115.

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来源：地质与地球物理研究所

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