赖锦;王贵文;郑懿琼;李维岭;蔡超;

• 1:中国石油大学(北京)地球科学学院

• 2:中国石油大学(北京)油气资源与探测国家重点实验室

• 3:中国石油新疆油田公司新疆克拉玛依第一采油厂

• 4:中国地质大学(北京)能源学院

摘要(Abstract)：

为对比基于含水饱和度和汞饱和度2种方法计算低渗透碎屑岩储层孔隙结构分形维数的优劣性,分别采用2种方法对川中地区须家河组41块储集岩的毛细管压力曲线进行分形维数计算.结果表明:采用汞饱和度计算的孔隙结构分形维数与排驱压力、分选因数等表征储层孔隙结构的参数相关性较好.随着岩样分形维数增大,排驱压力增大、分选因数减小,相关性明显.采用含水饱和度计算的孔隙结构分形维数与排驱压力、分选因数等相关性较差.在条件许可时,可利用恒速压汞实验计算储集岩孔隙结构分形维数.

关键词(KeyWords)：孔隙结构;分形维数;分形特征;低渗透碎屑岩;压汞曲线;非均质性

Abstract:

Keywords:

基金项目(Foundation):国家大型油气田及煤层气开发科技重大专项(2011ZX05020-008)

作者(Author):赖锦;王贵文;郑懿琼;李维岭;蔡超;

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