Multi-fractured horizontal well (MFHW) is commonly used in tight gas reservoirs to achieve commercial development, and the created hydraulic fractures are irregularly distributed and stress-sensitive in general. The Blasingame decline analysis method that can deal with the variable rate/BHP cases has attracted great interest. In this paper, a Blasingame decline analysis model of MFHW with irregularly distributed and stress-sensitive fractures in tight gas reservoirs is established. A novel method is adopted to solve the gas flow in stress-sensitive fractures. The Laplace transform, Stehfest numerical inversion, and an iteration method are employed to obtain the semi-analytical solution. Subsequently, the solution is validated with published solutions. Then, the effects of several key parameters (e.g., asymmetric fractures, fracture angle, stress-sensitive coefficient, the elastic storativity ratio) on the Blasingame decline curve are investigated. The results reveal that the stress-sensitive fracture conductivity is spatially variable. The stress-sensitive conductivity elevates with increasing distance to the wellbore. A negative influence of stress-sensitivity is found on the transient production rate. A larger γ_FD enhances the described negative influence. But when γ_FD is larger than 18, the reduction of production rate due to the increase of γ_FD becomes negligible. In addition, it is observed that the Blasingame decline type curve moves downward when fractures are asymmetric. When considering fracture asymmetry, a more significant pressure loss from the wellbore to the fracture tip is found in the fractures with a longer length. The proposed model provides some insights with regard to production optimization and reservoir parameter interpretation.

多裂缝水平井（MFHW）通常用于致密气藏中以实现商业开发，并且所产生的水力压裂裂缝分布不规则且通常对应力敏感。能够处理可变利率/ BHP病例的Blasingame下降分析方法引起了极大的兴趣。本文建立了致密气藏中不规则分布且应力敏感裂缝的MFHW的Blasingame衰减分析模型。采用一种新的方法来解决应力敏感型裂缝中的气流。拉普拉斯变换，Stehfest数值反演和迭代方法被用来获得半解析解。随后，该解决方案将通过已发布的解决方案进行验证。然后，几个关键参数的影响（例如，不对称断裂，断裂角度，研究了Blasingame下降曲线上的应力敏感系数，弹性储能比）。结果表明，应力敏感性裂缝的电导率在空间上是可变的。应力敏感的电导率随着到井眼距离的增加而升高。发现应力敏感性对瞬态生产率有负面影响。更大的γ _FD增强了描述负面影响。但是，当γ _FD是大于18，产率由于增加的减少γ _FD变得可忽略。另外，观察到当骨折不对称时，Blasingame下降型曲线向下移动。考虑裂缝不对称性时，在长度较长的裂缝中，从井眼到裂缝尖端的压力损失更大。该模型为生产优化和储层参数解释提供了一些见识。