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Characteristics of Fracture Propagation Induced by Supercritical CO2 in Inter-Salt-Shale Reservoir

文献类型：期刊论文

作者Zhang, Yixiang1,2,3; He, Jianming1,2,3; Li, Fengxia4; Fan, Xin4; Li, Xiao1,2,3
刊名GEOFLUIDS
出版日期2019
页码9
ISSN号1468-8115
DOI10.1155/2019/7132843
英文摘要Hydraulic fracturing using freshwater is difficult for the commercial exploitation of a shale oil reservoir in Jianghan Basin with a continental saline lake basin sedimentary background. Supercritical CO2 (SC-CO2) is a promising fracturing fluid under consideration for the reservoir stimulation, especially in the case of the presence of water sensible salt layers. In this study, SC-CO2 fracturing experiments on the inter-salt-shale and salt specimens, which were obtained from the drilling well, were carried out in the laboratory. The characteristics of fracture propagation, including morphology and width variation, were analyzed based on the observations of a stereoscopic microscope, X-ray micro-CT scanner, and 3D scanner. The existing weak planes in the shale can really impact the fracture propagation in SC-CO2 fracturing. Deflection, branching, and approaching can occur during the process of fracture propagation. The average width value of the reactivated natural fracture is bigger than that of a newly created fracture. In addition, the fracturing results indicate the greater breakdown pressure of rock salt if compared with the inter-salt-shale. The induced fractures in the salt specimen are compact and smaller in average width than those in the shale specimen. The higher breakdown pressure and relatively smaller fracture width of rock salt are real challenges for the fracturing of an inter-salt-shale oil reservoir.
资助项目National Natural Science Foundation of China[41572310] ; National Natural Science Foundation of China[41877270] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030301] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030304]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:000465269600001
出版者WILEY-HINDAWI
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 ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/91380]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者He, Jianming
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.SINOPEC Explorat & Prod Res Inst, State Key Lab Shale Oil & Gas Enrichment Mech & E, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yixiang,He, Jianming,Li, Fengxia,et al. Characteristics of Fracture Propagation Induced by Supercritical CO2 in Inter-Salt-Shale Reservoir[J]. GEOFLUIDS,2019:9.
APA Zhang, Yixiang,He, Jianming,Li, Fengxia,Fan, Xin,&Li, Xiao.(2019).Characteristics of Fracture Propagation Induced by Supercritical CO2 in Inter-Salt-Shale Reservoir.GEOFLUIDS,9.
MLA Zhang, Yixiang,et al."Characteristics of Fracture Propagation Induced by Supercritical CO2 in Inter-Salt-Shale Reservoir".GEOFLUIDS (2019):9.

入库方式： OAI收割

来源：地质与地球物理研究所

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