�?�?t ε l ρ l v l + �?�?ε l ρ l v l v l = ε l �?�?τ l + ε l ρ l g �?ε l �?p �?β v l �?v s The organic fractures encountered in the actual drilling process will not be parallel fractures by using a uniform width together the length in the fracture. In the course of the loss process, once the fluid strain in the f