Electrical geophysical apparatus for determining the density of porous materials and establishing geo-electric constants of porous material

摘要

The invention includes an apparatus for determining geo-electric data and the density of a porous material. A resistivity-measuring device applies an electrical current through an electrode array to that is part of a non-electrical conductive test cell that is used to measure the resistivity of the porous material that is the test cell. The test cell is a made of a rigid non-electrically conductive material and is a standard shape and dimension. The material that is the test specimen is compacted into the test cell using a standard technique so that the physical properties of the test specimen my calculated. In addition to making a set of standard physical measurement (material unit density and unit moisture content) the test cell is used to measure electrical properties of the test specimen so that a set of electrical constants can be determined for the material under test. The above data is applied with a general geophysical in-situ density equation to establish geo-electrical constants that are unique to the density characteristics of the porous material.