高英;朱维耀;岳明;李爱山;张燎原;宋洪庆;

• 1:北京科技大学土木与环境工程学院

• 2:中石化胜利油田分公司采油工艺研究院

摘要(Abstract)：

利用岩心实验,研究页岩油储层纳微米孔喉渗流规律.基于分形理论,采用双重分维(缝宽分维和迂曲分维),对体积压裂裂缝面密度、等效渗透率等参数进行表征.页岩油储层体积压裂开发过程中,流体的流动分为椭圆缝网内渗流区和主干缝内线性渗流区2个区域,建立二区耦合稳态渗流数学模型,推导页岩油体积压裂改造储层直井产能方程,模拟计算压裂井产能及分析压裂裂缝参数对产能的影响.结果表明:缝宽分形维数越大,裂缝面密度越大,基质—裂缝等效渗透率越大;当裂缝面密度较大时,增加储层改造宽度对产能提升有较大影响;次生缝导流能力越高,提高主干缝导流能力对产能影响越大,次生缝导流能力越小,影响越小.

关键词(KeyWords)：页岩油;非线性渗流;体积压裂;分形;椭圆渗流;产能模型

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05051);; 国家自然科学基金项目(11372033);; 提高油气采收率教育部重点实验室(东北石油大学)开发课题(NEPU-EOR-2012-003)

作者(Author):高英;朱维耀;岳明;李爱山;张燎原;宋洪庆;

Email:

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