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Impact of detrital composition and diagenesis on the heterogeneity and quality of low-permeability to tight sandstone reservoirs: An example of the Upper Triassic Yanchang Formation in Southeastern Ordos Basin

文献类型：期刊论文

作者Wang, Zhongnan1,2,3; Luo, Xiaorong7; Lei, Yuhong1; Zhang, Likuan1; Shi, Hui7; Lu, Jiehe6; Cheng, Ming1; Liu, Naigui1; Wang, Xiangzeng5; He, Yonghong5
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2020-12-01
卷号195页码:18
关键词Low-permeability Tight sandstone Heterogeneity Reservoir quality Yanchang Formation Ordos basin
ISSN号0920-4105
DOI10.1016/j.petrol.2020.107596
英文摘要Reservoir quality is key to hydrocarbon exploration and often poses challenges for the production of low-permeability to tight sandstone reservoirs. In this paper the Yanchang Formation in the southern Ordos basin was characterized by different reservoir types and heterogeneity through comprehensive analysis of petrological features, petrophysical properties, diagenetic sequences and hydrocarbon charging. Eventually we identified the high-quality reservoirs, more importantly, the controlling factors on their petrophysical properties. This study reveals that low-permeability to tight sandstone reservoirs in the study area exhibit strong heterogeneity. Four types of sandstones were identified and classified as calcareous, dark lamiae-rich, oil-bearing and water-bearing ones. Prior to oil charging, dark lamiae-rich sandstones and calcareous sandstones experienced strong compaction and cementation, respectively. Therefore, they are typical of poor petrophysical properties and usually exist as interlayers. On the contrary, although the oil-bearing and water-bearing sandstones underwent complex diagenetic processes, they maintained good petrophysical properties and became high-quality reservoirs. Now that the sediments have different provenances, the high-quality reservoirs in the southern provenance have more ductile grains, typical of compactional porosity loss. As a result, their reservoir properties are relatively inferior. In comparison, as the high-quality reservoirs in the northeast suffered less from compactional porosity loss, they were developed with superior porosity and permeability. But on the downside, the presence of large amounts of authigenic chlorite cements caused some damage to the reservoir quality.
WOS关键词SOUTH CHINA SEA ; COMPACTION PROCESSES ; RELATIVE IMPORTANCE ; BURIAL DIAGENESIS ; OUTCROP ANALOG ; QUARTZ CEMENT ; POROSITY ; PREDICTION ; EVOLUTION ; FIELD
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 14010401] ; National Science and Technology Major Project[2017ZX05008-004] ; National Science and Technology Major Project[2017ZX05009-001]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000586002900054
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project
源URL[http://ir.iggcas.ac.cn/handle/132A11/99901]  
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Wang, Zhongnan
作者单位1.China Univ Petr East China, Sch Geosci, Qingdao 266580, Peoples R China
2.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China
3.PetroChina Qinghai Oil Field Co, Petr Explorat Div, Dunhuang 736202, Peoples R China
4.Shaanxi Yanchang Petr Grp Corp Ltd, Xian 710075, Peoples R China
5.Guangdong Tech Coll Water Resources & Elect, Guangzhou 510900, Peoples R China
6.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
7.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Zhongnan,Luo, Xiaorong,Lei, Yuhong,et al. Impact of detrital composition and diagenesis on the heterogeneity and quality of low-permeability to tight sandstone reservoirs: An example of the Upper Triassic Yanchang Formation in Southeastern Ordos Basin[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,195:18.
APA Wang, Zhongnan.,Luo, Xiaorong.,Lei, Yuhong.,Zhang, Likuan.,Shi, Hui.,...&Jiang, Tailiang.(2020).Impact of detrital composition and diagenesis on the heterogeneity and quality of low-permeability to tight sandstone reservoirs: An example of the Upper Triassic Yanchang Formation in Southeastern Ordos Basin.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,195,18.
MLA Wang, Zhongnan,et al."Impact of detrital composition and diagenesis on the heterogeneity and quality of low-permeability to tight sandstone reservoirs: An example of the Upper Triassic Yanchang Formation in Southeastern Ordos Basin".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 195(2020):18.

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来源：地质与地球物理研究所

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