IGGCAS OpenIR  > 油气资源研究院重点实验室
Evaluation of pore-scale wettability in the tight sandstone reservoirs of the Upper Triassic Yanchang Formation, Ordos Basin, China
Wang, Zhongnan1,2; Luo, Xiaorong2; Liu, Keyu3,4; Lei, Yuhong2; Zhang, Likuan2; Cheng, Ming2; Wang, Xiangzeng5
2022-04-01
Source PublicationMARINE AND PETROLEUM GEOLOGY
ISSN0264-8172
Volume138Pages:13
AbstractWettability 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.
KeywordYanchang formation Ordos basin Tight sandstone Mixed wettability Oil charge Environmental scanning electron microscope
DOI10.1016/j.marpetgeo.2022.105528
Funding Organizationresearch 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
WOS KeywordPETROPHYSICAL PROPERTIES ; CAPILLARY-PRESSURE ; OIL LOSSES ; GAS-FIELD ; MIGRATION ; MICRO ; HETEROGENEITY ; PERMEABILITY ; COALESCENCE ; SATURATION
Language英语
Funding Projectresearch 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]
Funding Organizationresearch 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
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000753460100002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104910
Collection油气资源研究院重点实验室
Corresponding AuthorLuo, Xiaorong
Affiliation1.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
3.China Univ Petr East China, Sch Geosci, Qingdao 266580, Shandong, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China
5.Shanxi Yanchang Petr Grp Co Ltd, Xian 710075, Shaanxi, Peoples R China
First Author AffilicationKey Laboratory of Petroleum Resource Research, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Petroleum Resource Research, Chinese Academy of Sciences
Recommended Citation
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.
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