A GRAIN CONDUCTIVITY APPROACH TO SHALY SANDSTONES

被引：88

作者：

DELIMA, OAL ^{[1
]}

SHARMA, MM ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT PETR ENGN,AUSTIN,TX 78712

来源：

GEOPHYSICS | 1990年 / 55卷 / 10期

关键词：

D O I：

10.1190/1.1442782

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The effects of clay conduction on the electrical behavior of shaly sandstones at low frequencies are analyzed by considering self-similar mixtures of conductive grains, as representative of these porous rocks. An essential step in this model is the representation of the surface conductivities of the clay platelets by an equivalent volume conductivity. The derived analytical expressions are successfully applied to describe a set of available experimental core and geophysical log data. The results clearly demonstrate the applicability of the equations to well-log interpretation, as a practical procedure for computing formation factors and shaliness of argillaceous sandstones. -from Authors

引用

页码：1347 / 1356

页数：10

共 26 条

[1]

[Anonymous], 1986, NUMERICAL RECIPES

[2] The electrical resistivity log as an aid in determining some reservoir characteristics [J].