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:
Jul. 13, 1993
Filed:
Aug. 31, 1990
Applicant:
Inventor:
Ronald P Steiger, Houston, TX (US);
Assignee:
Exxon Production Research Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 38 ; 73794 ;
Abstract
Methods and apparatuses for quantitatively measuring the strengths, pore pressures, and mechanical properties of low permeability geologic materials, such as shales, including test specimen preparation apparatus for adjusting test specimen water content and test apparatus with an end cap having a pore pressure transducer channel disposed adjacent a test specimen filled with an immiscible, inert fluid which does not wet the test specimen, and controlling the deviatoric load on the test specimen during the test to prevent premature failure.