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:
Oct. 27, 1992
Filed:
Nov. 19, 1990
Applicant:
Inventors:
Hui Xu, Baton Rouge, LA (US);
Robert Desbrandes, Baton Rouge, LA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; G01K / ;
U.S. Cl.
CPC ...
364422 ; 73154 ; 374136 ;
Abstract
A method for determining thermal characteristics of a geological formation from observations of temperature relaxation in a formation after a temperature perturbation, such as that resulting from circulation of drilling mud. A method of determining petrophysical properties from these thermal characteristics. A method of determining thermal characteristics from petrophysical properties.