Evaluation of pore-scale wettability in the tight sandstone reservoirs of the Upper Triassic Yanchang Formation, Ordos Basin, China
文献类型：期刊论文
| 作者 | Wang, Zhongnan1,5; Luo, Xiaorong5; Liu, Keyu3,4; Lei, Yuhong5; Zhang, Likuan5; Cheng, Ming5; Wang, Xiangzeng2 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 138页码:13 |
| 关键词 | Yanchang formation Ordos basin Tight sandstone Mixed wettability Oil charge Environmental scanning electron microscope |
| ISSN号 | 0264-8172 |
| DOI | 10.1016/j.marpetgeo.2022.105528 |
| 英文摘要 | Wettability is a key factor influencing multiphase fluid distributions and flow behavior in the reservoirs. The microscopic characteristics of the mixed wettability which is a special wettability type are unclear in sandstone reservoirs. An integrated study of petrographic, petrophysical and pore-scales wettability by Environmental Scanning Electron Microscope (ESEM) using the water condensation method were carried out on typical sand-stone samples in the Chang-6 interval of Yanchang Formation, southeastern Ordos Basin, and the characteristics of mixed wettability were investigated. It shows that the oil-free sandstones are water-wet in general, while the oil-bearing sandstones are apparently mixed-wet. In the mixed-wet sandstones, the walls of different pores or even the same one pore display different wetting states. The mixed wetting nature of the tight sandstones was probably caused by the early phase oil charge. After oil charged into the reservoir, chlorite surfaces in contacting with pores adsorbed the polar compounds in the crude oil, and their wettability was altered locally from water-wet to oil-wet states. However, pore walls surrounded by quartz and feldspars mainly remained water-wet after oil charge. |
| WOS关键词 | PETROPHYSICAL PROPERTIES ; CAPILLARY-PRESSURE ; OIL LOSSES ; GAS-FIELD ; MIGRATION ; MICRO ; HETEROGENEITY ; PERMEABILITY ; COALESCENCE ; SATURATION |
| 资助项目 | research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; National Natural Science Foundation of China[42102159] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000753460100002 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., 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 ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., 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 ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., 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 ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; research institute of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., China ; Fuxian oil production plant in the Yanchang Oil Field Corp. Ltd., 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/132A11/104910]  |
| 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 | Luo, Xiaorong |
| 作者单位 | 1.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 2.Shanxi Yanchang Petr Grp Co Ltd, Xian 710075, Shaanxi, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China 4.China Univ Petr East China, Sch Geosci, Qingdao 266580, Shandong, Peoples R China 5.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,Liu, Keyu,et al. Evaluation of pore-scale wettability in the tight sandstone reservoirs of the Upper Triassic Yanchang Formation, Ordos Basin, China[J]. MARINE AND PETROLEUM GEOLOGY,2022,138:13. |
| APA | Wang, Zhongnan.,Luo, Xiaorong.,Liu, Keyu.,Lei, Yuhong.,Zhang, Likuan.,...&Wang, Xiangzeng.(2022).Evaluation of pore-scale wettability in the tight sandstone reservoirs of the Upper Triassic Yanchang Formation, Ordos Basin, China.MARINE AND PETROLEUM GEOLOGY,138,13. |
| MLA | Wang, Zhongnan,et al."Evaluation of pore-scale wettability in the tight sandstone reservoirs of the Upper Triassic Yanchang Formation, Ordos Basin, China".MARINE AND PETROLEUM GEOLOGY 138(2022):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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