Email this article New Method for Calculating Wellbore Collapse Pressure in Shale Formations
- Authors: Ma T.1, Chen P.1
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Affiliations:
- State Key Lab. of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
- Issue: Vol 52, No 4 (2016)
- Pages: 451-461
- Section: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/234626
- DOI: https://doi.org/10.1007/s10553-016-0729-7
- ID: 234626
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Abstract
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.
About the authors
Tian-shou Ma
State Key Lab. of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Author for correspondence.
Email: matianshou@126.com
China, Chendu
Ping Chen
State Key Lab. of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: matianshou@126.com
China, Chendu
