QQ客服 官方微博 反馈留言

	Influence of Grain Size Heterogeneity and In-Situ Stress on the Hydraulic Fracturing Process by PFC2D Modeling
	Han, Zhenhua1,2,3; Zhou, Jian1,2; Zhang, Luqing1,2
刊名	ENERGIES
	2018-06-01
卷号	11期号:6
关键词	hydraulic fracturing grain size heterogeneity in-situ stress particle flow code modified fluid-mechanically coupled model
ISSN号	1996-1073
DOI	10.3390/en11061413
文献子类	Article
英文摘要	A modified fluid-mechanically coupled algorithm in PFC2D was adopted in this article to study the influence of grain size heterogeneity and in-situ stress on hydraulic fracturing behavior. Simulated results showed that the in-situ stress and grain size heterogeneity significantly affect the initiation, growth, and spatial distribution of the hydraulic fractures: (1) the initiation and breakdown pressure are gradually reduced with the increase of the grain size heterogeneity; (2) with increased in-situ stress, the initiation and breakdown pressure increase, and the reduction effect of grain size heterogeneity on the breakdown pressure becomes more obvious; (3) in grain size homogeneous rock, the initiation pressure decreases with increasing in-situ stress ratio, however, the initiation pressure of grain size heterogeneous rock is almost unaffected by the in-situ stress ratio; (4) The in-situ stress ratio and grain size heterogeneity affect the spatial distribution of hydraulic fractures simultaneously. When the in-situ stress ratio is larger than 1, the hydraulic fractures propagate substantially along the direction of the maximum principal stress. When the in-situ stress ratio is 1, the initiation position and extension direction of hydraulic fractures are random and complex fracture networks can easily develop in a grain size homogeneous model.
WOS关键词	STATISTICAL TECHNIQUES ; COMPRESSIVE FRACTURE ; FLUID VISCOSITY ; ROCK ; RESERVOIRS ; PROPAGATION ; STIMULATION ; MECHANISM
WOS研究方向	Energy & Fuels
语种	英语
出版者	MDPI
WOS记录号	WOS:000436552700091
资助机构	National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; 41672321 ; 41672321 ; 41672321 ; 41672321 ; 41502307) ; 41502307) ; 41502307) ; 41502307) ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; 41672321 ; 41672321 ; 41672321 ; 41672321 ; 41502307) ; 41502307) ; 41502307) ; 41502307) ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; 41672321 ; 41672321 ; 41672321 ; 41672321 ; 41502307) ; 41502307) ; 41502307) ; 41502307) ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; National Natural Science Foundation of China(41572312 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10050202) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; China Postdoctoral Science Foundation(2018M630204) ; 41672321 ; 41672321 ; 41672321 ; 41672321 ; 41502307) ; 41502307) ; 41502307) ; 41502307)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88158]
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	Zhou, Jian
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, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Han, Zhenhua,Zhou, Jian,Zhang, Luqing. Influence of Grain Size Heterogeneity and In-Situ Stress on the Hydraulic Fracturing Process by PFC2D Modeling[J]. ENERGIES,2018,11(6).
APA	Han, Zhenhua,Zhou, Jian,&Zhang, Luqing.(2018).Influence of Grain Size Heterogeneity and In-Situ Stress on the Hydraulic Fracturing Process by PFC2D Modeling.ENERGIES,11(6).
MLA	Han, Zhenhua,et al."Influence of Grain Size Heterogeneity and In-Situ Stress on the Hydraulic Fracturing Process by PFC2D Modeling".ENERGIES 11.6(2018).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。