�?�?t ρ l k + �?�?x i ρ l k v l = �?�?x j μ + μ t σ k �?k �?x j + G k �?ρ l ε �?Y M Figure 7 exhibits the stress and velocity cloud map in the coupled wellbore–fracture process at this time of loss. The tension during the drill pipe and annulus won't improve appreciably, however the fluid tension during the fract