Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes

doi:10.1017/S2045796018000793

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

	Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes
	Chen, Yulin ; Liu, Zhou ; Zhang, Xu ; He, Shiming ; Ma, Dexin ; Zhou, Jun
刊名	ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
	2019
期号	-页码:43847
关键词	Elliptical wellbore weak plane collapse pressure wellbore stability drilling
ISSN号	1556-7036
DOI	10.1017/S2045796018000793
英文摘要	Owing to stress concentration and anisotropy, the actual shape of a borehole is oval instead of what is usually treated - circular. In this study, a collapse pressure model for an elliptical vertical wellbore is established. The influences of ellipticity and weak planes on the wellbore collapse pressure are analyzed. The results reveal that the collapse pressure increases with the wellbore ellipticity and decreases as the weak planes' strength increases. Additionally, the collapse pressure depends strongly on the attitude of the weak planes. The present study achieves a more accurate prediction of the wellbore collapse pressure in a layered formation.
WOS研究方向	Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000469674400001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14996]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China; 2.CNPC Chuanqing Drilling Engn Co Ltd, Chuandong Drilling Co, Chongqing, Peoples R China; 3.COSL, Sanhe, Peoples R China; 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yulin,Liu, Zhou,Zhang, Xu,et al. Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes[J]. ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS,2019(-):43847.
APA	Chen, Yulin,Liu, Zhou,Zhang, Xu,He, Shiming,Ma, Dexin,&Zhou, Jun.(2019).Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes.ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS(-),43847.
MLA	Chen, Yulin,et al."Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes".ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS .-(2019):43847.