刘海龙;吴淑红;李华;李春涛;谈婷婷;

• 1:中国石油勘探开发研究院

• 2:提高石油采收率国家重点实验室

• 3:新疆油田公司勘探开发研究院

• 4:江南大学化学与材料工程学院

摘要(Abstract)：

针对合理井网密度确定方法的不足,应用渐进分析和积分变换,给出低渗透气藏考虑压敏效应的任意时刻、任意位置的流体压力解析解;应用压降叠加原理,给出低渗透气藏考虑压敏效应不规则井网多井同时开采的压力、产量求取方法;引入无量纲生产指数,揭示不同时刻的产量、累计产量与生产井井数的变化规律;结合经济评价净现值法,建立生产井井数与经济收益的关系函数,应用多元函数极值法,确立一种简单、可靠的求取经济合理井网密度的方法.实例分析和方法对比结果表明:随着生产井井数的变化,经济效益、累计产量存在最大值;同时,给出不同物性条件的合理井网密度优化图版,供其他类似气藏参考.该方法简单、可靠、方便,为油气藏开发方案的编制提供理论基础.

关键词(KeyWords)：低渗透气藏;压降叠加原理;无量纲生产指数;井网密度;压力分布;单井动态

Abstract:

Keywords:

基金项目(Foundation):北京市科委基金项目(z121100004912001);; 中国石油天然气股份有限公司科技重大专项(2011A-1010)

作者(Author):刘海龙;吴淑红;李华;李春涛;谈婷婷;

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