方思冬;程林松;李彩云;曹仁义;杨戬;何聪鸽;

• 1:中国石油大学(北京)石油工程学院

• 2:中国石油长庆油田公司勘探开发研究院

• 3:中国石油勘探开发研究院

摘要(Abstract)：

针对目前考虑应力敏感的多角度多段裂缝压裂水平井产量模型研究较少,基于摄动理论,结合源函数,建立拉普拉斯空间下求解压裂水平井产量的半解析方法,与成熟数值模拟软件对比验证模型正确性,绘制并分析应力敏感油藏多角度多段压裂水平井压力和产量动态曲线.结果表明:应力敏感油藏压裂水平井流动形态呈现较为明显的裂缝线性流与系统径向流动形态,而其双对数压力及其导数曲线在系统径向流阶段出现上翘;应力敏感效应减弱了缝间干扰作用,体现在不同裂缝条数与裂缝角度对产量的影响上,因此,裂缝条数等参数的优化需要考虑应力敏感,才能得到更合理的结果.

关键词(KeyWords)：应力敏感;压裂水平井;多角度裂缝;一阶摄动解;拉普拉斯变换;动态产量

Abstract:

Keywords:

基金项目(Foundation):北京市自然科学基金项目(3144033)

作者(Author):方思冬;程林松;李彩云;曹仁义;杨戬;何聪鸽;

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