西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (5): 114-118.

• 石油与天然气工程 • 上一篇    下一篇

高孔高渗砂岩聚驱后的岩电参数变化影响因素

高建   

  1. 中国石油勘探开发研究院采收率所,北京海淀100083
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-10-01 发布日期:2012-10-01

Influencing Factars of Rock-electrical Parameters Alternation Causes afterPolymer Flooding in High Porosity and High Permeability Sand Rock

Gao Jian   

  1. Department of Enhanced Oil Recovery,Research Institute of Petroleum Exploration & Development PetroChina,Haidian,Beijing 100083,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-10-01 Published:2012-10-01

摘要: 储层的岩电参数随着油藏开发逐渐发生变化。通过实验研究聚合物采油后储层的岩电参数变化,结果表明:
岩电参数明显受到聚合物驱替浓度和配制方式的影响,驱替浓度大,储层泥质含量低,孔隙结构好,相应a 值变大,m
和n 变小,b 值稳定;实验证实阿尔奇公式依然适用聚驱后储层,沉积微相直接控制产出聚合物浓度,可以分相带选取
岩电参数进行饱和度解释。

关键词: 高孔高渗储层, 聚合物驱, 岩电实验, 岩电参数, 解释方法

Abstract: Rock-electrical parameters are studied through many experiments and saturation interpretation are made in the
geological condition. The study is show that polymer solution have low mobility and conductivity;polymer Concentration
have effect on rock-electrical parameters,and shale content is lower and pore texture is better when concentration becomes
higher. Correspondingly,a is bigger and m and n are smaller. Sedimentary microfacies control product polymer concentration
directly. The Archies formula is suitable for polymer flooding reservoir,and saturation interpretation are made by using of
different rock-electrical parameters.

Key words: high porosity and permeability reservoir, polymer flooding, rock-electric experiment, rock-electrical parameters, interpretation method