During the process of the deviation,it considers the effect of non Darcy flow and the anisotrophy of gas layers on the productivity of horizontal wells.

• 从表皮因子的概念出发,推导出非达西流下水平井裸眼完井表皮因子的解析模型,并用有限元法计算结果验证了所推导模型的正确性。