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:
Jan. 26, 1988
Filed:
Jun. 09, 1986
Applicant:
Inventors:
Ernest L Muegge, Grand Prairie, TX (US);
Jorge J Faz, Dallas, TX (US);
Eve S Sprunt, Farmers Branch, TX (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01V / ;
U.S. Cl.
CPC ...
378-4 ; 378 51 ; 2502521 ; 250262 ; 250269 ;
Abstract
A core sample invaded by drilling mud is scanned with X-rays and computed tomographic images are produced. The images are calibrated to a density scale based on the barite content of the drilling mud. The mud solid volume in the pores of the core sample are determined from the density contrast created in the computed tomographic images by the presence of barite in the core sample. This mud solid volume is used to provide a corrected porosity measurement on the core sample.