The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
Apr. 05, 1991
Macmillan M Wisler, New Haven, CT (US);
Teleco Oilfield Services Inc., Meriden, CT (US);
Abstract
The method evaluates borehole formations using corrected formation resistivity logs obtained from a formation evaluation tool. In accordance with the present invention the method corrects the error in the amplitude ratio resistivity curve R.sub.ar and the phase difference resistivity curve R.sub.pd thereby providing a more accurate formation resistivity log. The method of this invention employs a low frequency mixing law such as Archie's equation in combination with a high frequency mixing law such as Complex Refractive Index Method (CRIM) to correct the measurements of wave propagation type formation evaluation tools for the effects of the dielectric constant on the tool's measured parameters.