New Method for Calculating Wellbore Collapse Pressure in Shale Formations

被引：0
|
作者：
Tian-shou Ma
Ping Chen
机构：
[1] Southwest Petroleum University,State Key Lab. of Oil & Gas Reservoir Geology and Exploitation
来源：
Chemistry and Technology of Fuels and Oils | 2016年 / 52卷
关键词：
shale gas; collapse pressure; horizontal well; wellbore stability; bedding plane; weak plane;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We have developed a simple and accurate method for calculating the equivalent density of wellbore collapse pressure in shale formations, which can be used for well path optimization. The calculation takes into account in-situ stresses, occurrence of bedding planes (direction, dip), the strength of bedding planes, rock strength, wellbore trajectory (deviation, azimuth), and also the external stress caused by mud filtrate invasion. We consider the influence of bedding planes on the equivalent density.
引用
收藏
页码：451 / 461
页数：10
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