Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects

doi:10.1016/j.petrol.2018.10.092

CORC > 地质与地球物理研究所 > 中国科学院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

	Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects
	Zhang, Yixiang 1,2,3; He, Jianming 1,2,3; Li, Xiao 1,2,3; Lin, Chong 1,2,3
刊名	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
	2019-02-01
卷号	173 页码:932-940
关键词	Hydraulic fracturing Shale Supercritical CO2 Anisotropic characteristic
ISSN号	0920-4105
DOI	10.1016/j.petrol.2018.10.092
英文摘要	Hydraulic fracturing using freshwater as fracturing fluid is regularly employed in commercial shale gas or oil production. Many problems are brought by the fracturing fluid of water, such as water shortages, swelling of clay mineral, and the pollution of flow-back water. Replacement of water by supercritical CO2 (SC-CO2) in the hydraulic fracturing treatment of shale reservoir has meaningful potential for the improvement of gas production. Hydraulic fracturing experiments, under different injection rate and stress state, were carried out for studying the SC-CO2 fracturing of shale considering anisotropy effects. Anisotropy of shale has a significant impact on the mechanical behavior and fracture propagation of shale in the experiment. There shows a downward tendency for breakdown pressure with the increase of bedding plane angle in general. Higher injection rate can lead to the higher breakdown pressure, while higher deviator stress can lead to the lower breakdown pressure instead. In addition, three patterns of fracture propagation can be observed in the experiment, relative to the bedding structures of shale specimen, including propagating along, propagating across and arresting. The maximum values of fracture width during experiment in shale with different bedding plane angle ranges from 0.29 mm to 1.05 mm, while the final fracture width after the fracturing experiment is kept within the range of 0.01 mm-0.04 mm under the injection rate of 0.3 ml/s.
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] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14040401]
WOS关键词	FLUID VISCOSITY ; CARBON-DIOXIDE ; GAS ; OIL ; WATER ; INJECTION
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000455118800079
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
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90200]
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
推荐引用方式 GB/T 7714	Zhang, Yixiang,He, Jianming,Li, Xiao,et al. Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2019,173:932-940.
APA	Zhang, Yixiang,He, Jianming,Li, Xiao,&Lin, Chong.(2019).Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,173,932-940.
MLA	Zhang, Yixiang,et al."Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 173(2019):932-940.