DIELECTRIC CONSTANT LOGGING A PROGRESS REPORT

Abstract

The recent evolution of equipment capable of measuring the relative dielectric constant of a formation has stimulated new approaches to the evaluation of water saturation. In many oil productive reservoirs, the formation water resistivities are either unknown or are very high; thus complicating conventional resistivity dependent solutions for water saturation.

By determining the relative dielectric constant of the formation and through application of the Lichtnecker and Rother equation for the dielectric constant of mixtures, the analyst may identify the presence of hydrocarbons and in many cases, quantify reserves. Additionally, a quick look overlay technique for qualitative evaluation can be utilized. These procedures can be of great help in both exploration and development environments where conventional methods have led to confusion.