分支水平井产能公式的优越性分析

The advantage analysis of branched horizontal well productivity formula

本文分析了分支水平井的7个典型产能公式。对比发现,王卫红公式、李璗公式均为程林松公式的特例;蒋廷学公式比程林松公式更加准确。通过理论分析和实例运算,验证了齐成伟公式在外部渗流阻力部分的重要突破。进一步分析发现,齐成伟公式的外部渗流阻力部分自相容,科学严谨。最后,考虑到各种附加阻力,得出了完整的产能公式。

Seven typical productivity formulas of branched horizontal well were analyzed in this paper. It can be easily found that Weihong Wang formula and Dang Li formula are special cases of Linsong Cheng formula, and Tingxue Jiang formula is more accurate than Linsong Cheng formula. The important breakthrough in external seepage resistance made by Chengwei Qi was verified through theoretical analysis and calculation test. Further analysis shows that the external seepage resistance made by Chengwei Qi is self-compatible and rigorous. Finally, taking various additional resistances into account, a complete productivity formula was obtained.