【摘要】 运用保角变换和等值渗流阻力推得分支水平井（有公共点或没有公共点）产能公式。对分支水平井产能及影响因素进行较细致的研究，分析了井筒数、井筒长度、油层厚度、各向导性和水平井位置等因素对分支井产能的影响，得出了一些有意义的结论，对实际油藏的开发有重要的指导意义。更多还原

【Abstract】 The productivity formulas of branch horizontal wells which have or not have common joint are derived by applying conformal transformation and isopleth map of percolation resistance force. The paper gives a more detailed study on horizontal well productiyity and its influence factors such as the number of well bores, well length, formation thickness,formation anisotropy and horizontal well locations. The conclusion of the paper can be used to predict the productivity for a horizontal well with multi-branched boreholes in a practical reservoir development.更多还原