Wellbore stability analysis of layered shale based on the modified Mogi–Coulomb criterion

Borehole instability was frequently encountered during shale gas drilling. Most conventional models are not applicable to layered formation's wellbore stability analysis on account of anisotropic strength characteristic. In this study, an empirical equation for predicting anisotropic strength w...

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Bibliographic Details
Main Authors: Xu Yang, Xiangchao Shi, Yingfeng Meng, Xiaoyong Xie
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2020-09-01
Series:Petroleum
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405656119301063