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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Detalhes bibliográficos

Principais autores:	Yaoran Wei, Yongcun Feng, Zhenlai Tan, Tianyu Yang, Xiaorong Li, Zhiyue Dai, Jingen Deng
Formato:	Artigo
Idioma:	Inglês
Publicado em:	Elsevier 2024-05-01
coleção:	Journal of Rock Mechanics and Geotechnical Engineering
Assuntos:	Borehole stability Naturally fractured rocks Weakening of fracture strength Discrete fracture network Distinct element method
Acesso em linha:	http://www.sciencedirect.com/science/article/pii/S1674775523002342
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