Fracture pressure prediction for layered formations with anisotropic rock strengths

doi:10.1016/j.jngse.2017.01.002

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

	Fracture pressure prediction for layered formations with anisotropic rock strengths
	Ma, Tianshou 1,2; Wu, Bisheng 3; Fu, Jianhong 1; Zhang, Qiangui 1; Chen, Ping 1
刊名	JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
	2017
卷号	38 页码:485-503
关键词	Fracture pressure Layered rocks Anisotropy Tensile strength Failure criterion
ISSN号	1875-5100
DOI	10.1016/j.jngse.2017.01.002
英文摘要	Strength anisotropy is one of the most distinct features of layered formations, but anisotropic tensile strength has received scarce attention in the prediction of fracture pressure. Therefore, the characteristics of anisotropic tensile strength of layered rocks were investigated, main anisotropic tensile failure criteria were reviewed and compared, and the fracture pressure models were deduced for three different anisotropic failure criteria. The results demonstrate that the tensile strength of layered rocks is strongly anisotropic. The Nova Zaninetti criterion is recommended for the characterization of the anisotropic tensile strength. The variation of the fracture pressure caused by anisotropic tensile strength is close to 10% (it even exceeds 10%), and the anisotropy has a greater influence on the fracture pressure with increasing anisotropic degree. The higher the degree of anisotropy is, the lower the fracture pressure is; the higher the horizontal stress ratio and pore pressure are, the higher the impact of anisotropy on the fracture pressure is. A low dip angle of the bedding plane is beneficial for the fracture of the vertical wellbore, and it is the worst when the minimum horizontal stress is perpendicular to the bedding planes. (C) 2017 Elsevier B.V. All rights reserved.
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000394062000038
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4008]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.CSIRO Energy
推荐引用方式 GB/T 7714	Ma, Tianshou,Wu, Bisheng,Fu, Jianhong,et al. Fracture pressure prediction for layered formations with anisotropic rock strengths[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2017,38:485-503.
APA	Ma, Tianshou,Wu, Bisheng,Fu, Jianhong,Zhang, Qiangui,&Chen, Ping.(2017).Fracture pressure prediction for layered formations with anisotropic rock strengths.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,38,485-503.
MLA	Ma, Tianshou,et al."Fracture pressure prediction for layered formations with anisotropic rock strengths".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 38(2017):485-503.