Experimental and numerical study on the non-planar propagation of hydraulic fractures in shale

doi:10.1016/j.petrol.2019.04.054

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Experimental and numerical study on the non-planar propagation of hydraulic fractures in shale
	Heng, Shuai ; Liu, Xiao ; Li, Xianzhong ; Zhang, Xiaodong ; Yang, Chunhe
刊名	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
	2019
卷号	179 期号:-页码:410-426
关键词	Shale Bedding plane Hydraulic fracturing Non-planar propagation Fracture network
ISSN号	0920-4105
DOI	10.1016/j.petrol.2019.04.054
英文摘要	To better understand the non-planar propagation and geometry of fracture networks, hydraulic fracturing simulation tests on shale specimens were conducted using an established true triaxial hydraulic fracturing simulation test system. A two-dimensional numerical model of hydraulic fracturing was developed to clarify the evolution of hydraulic fractures and their non-planar behaviour at bedding planes. The numerical model with the alternating rock matrix and bedding planes considered the coupling effect of stress, fluid flow, and damage. The mechanisms by which hydraulic fractures penetrate or become arrested/deflected at bedding planes were then revealed as per the physical and numerical simulation results. The results revealed that the typical severe fluctuation of the injection pressure, which is closely related to the growth of sub-fractures along bedding planes or natural fractures, is a clear characteristic of the non-planar propagation of hydraulic fractures. The mechanical properties of the bedding primarily determine whether a hydraulic fracture penetrates or is deflected at the bedding. Strong beddings favour hydraulic fracture penetration; whereas, weak beddings favour hydraulic fracture deflection along the beddings. The hydraulic fractures typically extend along the path of least resistance, and therefore, induce the non-planar propagation behaviour at bedding planes. Tensile failure is a major fracture mechanism of the hydraulic fractures that penetrate or deviate at bedding planes. The experimental and numerical findings provide a basis for the optimum design of hydraulic fracturing and control of the fracture growth geometry in shale gas reservoirs.
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000470109500034
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14939]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Henan Polytech Univ, Sch Energy Sci & Engn, Jiaozuo 454000, Henan, Peoples R China; 2.Collaborat Innovat Ctr Coalbed Methane & Shale Ga, Jiaozuo 454000, Henan, Peoples R China; 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	Heng, Shuai,Liu, Xiao,Li, Xianzhong,et al. Experimental and numerical study on the non-planar propagation of hydraulic fractures in shale[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2019,179(-):410-426.
APA	Heng, Shuai,Liu, Xiao,Li, Xianzhong,Zhang, Xiaodong,&Yang, Chunhe.(2019).Experimental and numerical study on the non-planar propagation of hydraulic fractures in shale.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,179(-),410-426.
MLA	Heng, Shuai,et al."Experimental and numerical study on the non-planar propagation of hydraulic fractures in shale".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 179.-(2019):410-426.