�?�?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 If the dip angle in the fracture is 0.5, the coincidence degree in the indoor and field drilling fluid lost control effectiveness is higher, and the evaluation outcome is best Since the move chart offered in Determine 1, it is a