邵仁杰;邸元;崔书岳;康志江;

• 1:北京大学工学院

• 2:中国石化石油勘探开发研究院

摘要(Abstract)：

碎屑岩和碳酸盐岩油藏的数值模拟需要处理几何形态较为复杂的裂缝,对碳酸盐岩缝洞型油藏还须处理形状各异的溶蚀孔洞。采用传统的嵌入式离散裂缝模型时,需要将复杂裂缝划分为细密的网格,计算量较大,且难以准确处理溶洞。建立一种裂缝/溶洞嵌入式计算模型,对基质系统进行结构化网格剖分以形成基质单元,根据需要把单个裂缝或一组裂缝划分为一个裂缝单元,将大型溶洞根据几何形状划分为一个或数个连通的溶洞单元;采用推导的半解析方法计算裂缝或溶洞单元同基质单元的传导率,实现裂缝或溶洞在结构化基质网格中的嵌入。交叉裂缝、含洞储层和三维复杂缝网算例数值模拟结果表明,裂缝/溶洞嵌入式方法计算效率较高,对于形态较为复杂的裂缝和溶洞有很好的适用性。

关键词(KeyWords)：裂缝性油藏;缝洞型油藏;嵌入式离散裂缝;裂缝/溶洞嵌入式模型;传导率

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51674010);; 国家科技重大专项(2016ZX05014)

作者(Author):邵仁杰;邸元;崔书岳;康志江;

Email:

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