Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs

doi:10.1016/j.compgeo.2020.103652

	Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs
	Zou, Junpeng 1,2; Jiao, Yu-Yong 1; Tang, Zhicheng 1; Ji, Yinlin 2; Yan, Chengzeng 1; Wang, Jinchao 3
刊名	COMPUTERS AND GEOTECHNICS
	2020-09-01
卷号	125 页码:9
关键词	Hydraulic fracture Reservoir heterogeneity Numerical simulation XFEM
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2020.103652
英文摘要	The mechanical heterogeneity of unconventional gas reservoirs is a significant factor affecting the nucleation and propagation of hydraulic fractures. The ignorance of mechanical heterogeneity in the numerical calculation has been demonstrated to result in huge deviations from actual fracture propagation. In the present study, the eXtended Finite Element Method (XFEM) is used to simulate the propagation of a hydraulic fracture in a heterogeneous reservoir. The evolution of a hydraulic fracture encountering hard blocks at different positions near the initial fracture tip is investigated. The mechanical heterogeneity of reservoir rock leads to the redistribution of strength and stress, which eventually affects the evolution of hydraulic fracture. The effects of soft-hard rock interbedding and randomly distributed irregular blocks are also investigated. Generally, the hard blocks distributed in a reservoir promote the growth of hydraulic fracture in length, but limit the fracture growth in width.
资助项目	China National Natural Science Foundation[41731284] ; China National Natural Science Foundation[41920104007] ; China National Natural Science Foundation[41902293] ; International Postdoctoral Exchange Fellowship Program[20180077]
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000556345000010
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24593]
专题	中科院武汉岩土力学所
通讯作者	Jiao, Yu-Yong; Tang, Zhicheng
作者单位	1.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China 2.Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zou, Junpeng,Jiao, Yu-Yong,Tang, Zhicheng,et al. Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs[J]. COMPUTERS AND GEOTECHNICS,2020,125:9.
APA	Zou, Junpeng,Jiao, Yu-Yong,Tang, Zhicheng,Ji, Yinlin,Yan, Chengzeng,&Wang, Jinchao.(2020).Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs.COMPUTERS AND GEOTECHNICS,125,9.
MLA	Zou, Junpeng,et al."Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs".COMPUTERS AND GEOTECHNICS 125(2020):9.