提高薄层底水油藏注入水存水率室内研究

Shiyou Xuebao/Acta Petrolei Sinica(2007)

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Abstract
针对薄层底水油藏的注入水沿水平高渗透孔道易窜至油井和沿垂直高渗透部位进入底水层的问题,提出了提高薄层底水油藏注入水存水率的方法.该方法的原理是沿高渗透层建立层内隔板和沿油层与底水层界面建立底水隔板.为了建立层内隔板和底水隔板,研究了清洗液、密度调整液、隔板液和过顶替液4种工作液.并设计了清洗隔板液通道、局部提高底水密度、注入隔板液、过顶替和关井侯凝等施工工艺.通过合理选择工作液和建立施工工艺,可使层内隔板和底水隔板在一次施工中同时完成.隔板的建立由可视化物理模拟形象证实.
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Key words
Barrier,Net injection percentage of injected water,Thin-layer oil reservoir with bottom water,Visual physical simulation,Working fluid
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