Study of Rock Conductive Mechanism Based on Pore Structure
详细信息
- 责任者：Liu Tangyan (State Key Lab. of Marine Geology ; Tongji University ; Shanghai 200092 ; China) ; Tang Tianzhi
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(8)
- 关键词：孔隙结构 ; pore structure ; 导电性 ; electrical conductivity
- 页码：p.2818-2826
- 图表：8 illus., 1 table, 16 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
The classic Archie′s Laws give solutions in quantitative logging analysis.Unfortunately,only in the reservoir with simple pore structure the Archie′s Laws are suitable.For many complex reservoirs appearing in oil exploration,the classic Archie′s Laws fail to provide right oil saturation in logging analysis.Based on the Sphere-Cylinder Model,in this paper we study rock resistivity and obtain the numerical simulation result for different pore structures and oil saturations.By means of the numerical simulation and analysis,we conclude that pore structure is the principal factor to cause experimental data scatter.After comparing the rock resistivity of different pore structures but the same oil saturation,we confirm that the complex pore structure leads to the low resistivity in oil-bearing zone.