Open access
Aug 2026
Numerical Study on Drilling Fluid Loss in Fracture–Vuggy Formations Considering Multi-Medium Fluid–Solid Coupling
Structural fractures and karst cavities are widely developed in deep and ultra-deep carbonate reservoirs, providing preferential pathways for rapid fluid migration while increasing the risk of severe drilling fluid loss. To investigate the lost-circulation mechanism in fractured-vuggy formations, a hydro-mechanically c...
Jun Chen, Zhi-Ping Lu, Shi-Tao Zhang et al.
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