New method of in situ high-resolution experiments and analysis of fracture networks formed by hydraulic fracturing

doi:10.1016/j.petrol.2022.110849

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	New method of in situ high-resolution experiments and analysis of fracture networks formed by hydraulic fracturing
	Zheng, Siping 1,2; Lin, Mian 1,2; Jiang, Wenbin 1,2; Qiu, Xin 1,2; Chen, Zhuo 1,2
刊名	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
	2022-10-01
卷号	217 页码:11
关键词	Hydraulic fracturing In situ High-resolution Tight sandstone Fracture networks
ISSN号	0920-4105
DOI	10.1016/j.petrol.2022.110849
通讯作者	Lin, Mian(linmian@imech.ac.cn)
英文摘要	Hydraulic fracturing plays a key role in the oil and gas development of unconventional tight reservoirs. Therefore, it is important to study the fracturing mechanism of rocks. Thus far, the exploration of this problem through laboratory experiments has been regarded as the best method. However, the current laboratory ex-periments cannot achieve in situ high-resolution observation and analysis. Accordingly, an online scanning platform composed of hydraulic fracturing and micro-computed tomography (HFCP) was developed in this study. The in situ measurements obtained using the HFCP include three parts: a computed tomography (CT) system with a maximum imaging resolution of 7 mu m, a power system with a continuous changeable fluid pressure, and a post-processing system with rock reconstruction, grayscale calibration, threshold segmentation and efficient extraction of the fracture network. Furthermore, we carried out hydraulic fracturing experiments on tight sandstone samples using the HFCP, and the entire experimental process was conducted in situ. The statistics showed that under different confining pressures, the breakdown pressure and average fracture aperture increased with increasing injection rate, but the branch fracture volume fraction exhibited diverse characteristics. The HFCP provides a new method of studying the mechanism of the hydraulic fracturing of rocks, and it has the potential to reveal the in situ differences in fracture networks in tight reservoirs.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010304] ; National Natural Science Foundation of China[41872163]
WOS关键词	SHALE ; PERMEABILITY ; PROPAGATION ; WATER
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000843334700002
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89898]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Lin, Mian
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Siping,Lin, Mian,Jiang, Wenbin,et al. New method of in situ high-resolution experiments and analysis of fracture networks formed by hydraulic fracturing[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2022,217:11.
APA	Zheng, Siping,Lin, Mian,Jiang, Wenbin,Qiu, Xin,&Chen, Zhuo.(2022).New method of in situ high-resolution experiments and analysis of fracture networks formed by hydraulic fracturing.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,217,11.
MLA	Zheng, Siping,et al."New method of in situ high-resolution experiments and analysis of fracture networks formed by hydraulic fracturing".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 217(2022):11.