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Multiple fracturing of horizontal well in shale gas productivity factors numerical simulation researching
Author(s): 
Pages: 34-39
Year: Issue:  5
Journal: Petrochemical Industry Application

Keyword:  页岩气水平井多段压裂裂缝产能数值模拟;
Abstract: 页岩气作为一种重要的非常规能源,具有资源潜力大,开采寿命长等优点.目前只在美国和加拿大取得了成功开发.由于页岩气储层物性差,自然压力低,开发难度大等特点,商业开发页岩气的关键在于水平钻井和压裂技术的突破.水平井多段压裂技术形成裂缝网络,增大了渗流面积,减少了渗流阻力,提高了水平井产能,能十分有效提高页岩气产能,取得工业开采成功.本文运用Eclipse数值模拟软件中煤层气、双重介质等模块建立了数学模型,对页岩气储层裂缝系统与产能关系进行研究.考察了裂缝系统的渗透率、裂缝传导率、裂缝间距、裂缝半长、裂缝条数对水平井压裂后产能的影响.能有效优化和指导页岩气水平井多段压裂施工,预测产能.
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