Borehole stability in naturally fractured rocks with drilling mud intrusion and associated fracture strength weakening: A coupled DFN-DEM approach

Borehole instability in naturally fractured rocks poses significant challenges to drilling. Drilling mud invades the surrounding formations through natural fractures under the difference between the wellbore pressure (Pw) and pore pressure (Pp) during drilling, which may cause wellbore instability....

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Autori principali:	Yaoran Wei, Yongcun Feng, Zhenlai Tan, Tianyu Yang, Xiaorong Li, Zhiyue Dai, Jingen Deng
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	Elsevier 2024-05-01
Serie:	Journal of Rock Mechanics and Geotechnical Engineering
Soggetti:	Borehole stability Naturally fractured rocks Weakening of fracture strength Discrete fracture network Distinct element method
Accesso online:	http://www.sciencedirect.com/science/article/pii/S1674775523002342
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