Analysis of Wellbore Instability Characteristics of Fractured Shale Formation under Thermal⁃Hydraulic⁃Mechanical⁃Chemical Coupling

Analysis of Wellbore Instability Characteristics of Fractured Shale Formation under Thermal⁃Hydraulic⁃Mechanical⁃Chemical Coupling

Wellbore instability is easy to occur when drilling fractured shale formation. Based on mechanical experiments, this paper investigated the weakening law of mechanical properties of shale soaked in drilling fluid.Considering the influence of stress⁃pressure⁃temperature⁃solute concentration disturban...

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Bibliographic Details
Main Authors: Pingtao SUN, Guochang DONG, Lile LI, Jiping DING, Songcai HAN
Format: Article
Language:zho
Published: Editorial Department of Journal of Liaoning Petrochemical University 2025-08-01
Series:Liaoning Shiyou Huagong Daxue xuebao
Subjects:
fractured formation
shale
wellbore instability
weakening of rock strength
multi⁃field coupling
Online Access:https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2025.04.005
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https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2025.04.005

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