水平井辅以压裂措施开发页岩气已成为世界趋势，但由于页岩气在页岩基质和人工裂缝中呈赋存状态，且具有独特的渗流性，其产能分析较为复杂。以常规压裂水平井产能研究理论为基础，考虑页岩气藏吸附、解吸作用，气体在裂缝中高速非达西流动以及裂缝与井筒的耦合，利用保角变换方法推导得到页岩气藏压裂水平井产能分析的半解析模型。实例分析表明，水平井筒压降对页岩气藏压裂水平井产能影响较小，产量较低时水平井筒压降可忽略不计，而随着储层厚度、裂缝半长、裂缝导流能力、裂缝条数以及基质内外浓度差的增大，页岩气藏压裂水平井产量逐渐增大，但是增大趋势越来越平缓，最终趋于稳定。因此页岩气开发过程中应优选裂缝参数，以达到开发效果最优化。

Development of shale gas by using horizontal well fracturing measure has become a trend in shale gas development all over the world. However, because shale gas presents an occurrence state in shale substrate and artificial fractures and has a unique seepage, its production capacity analysis is more complicated. On the basis of conventional fracturing horizontal well productivity research theory, conducted is analysis on shale gas reservoir adsorption, desorption, gas high-speed non-darcy flow in fractures and coupling of fractures with shaft and applied is the method of conformal transformation for derivation and obtained is the semi-analytical model for fracturing horizontal well productivity analysis. Example analysis results show that horizontal wellbore pressure drop has less effect on shale gas reservoir fracturing horizontal well productivity, horizontal wellbore pressure drop can be neglected if yield is low. Along with increase of reservoir thickness, fracture half length, fracture diverting capacity, number of fractures and substrate concentration difference inside and outside, shale gas reservoir fracturing horizontal well production will increase gradually, but increase trend will be more and more gentle and tend to be stable in the end. Therefore, fracture parameters shall he optimized in shale gas development in order to achieve the optimum development effect.