水平井开采底水油藏临界产量的计算

CALCULATION OF CRITICAL FLOW RATE FOR HORIZONTAL WELL IN BOTTOM-WA-TER OIL RESERVOIR

阐述了水平井开采过程中临界产量的概念，并对国内外几种常用的临界产量计算公式进行了评价介绍。特别对石油工程界使用较多的Chaperon的临界产量计算公式进行了分析，指出了该公式中存在的问题，对该公式进行了修正，同时进一步研究导出了适合水平井临界产量计算的广义预测公式。通过现场实例计算，证明了修正后的Chaperon公式和本文导出式均可在油藏工程计算中使用。

This paper expounds the concept of critical flow rate in horizontal well, andmakes evaluation and analysis on some calculation formulas of critical flow rate at home andabroad, and point out the problems in Chaperon formula, which is in common use at the moment. This paper makes a modification for Chaperon formula, and derives the generalizedprediction formula of critical flow rate for horizontal well. Field applications show that themodified Chaperon formula and the generalized prediction formula can be used practically.