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:
Jun. 28, 2022
Filed:
Jun. 11, 2019
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/60 (2006.01); G01B 7/34 (2006.01); G01N 5/02 (2006.01); G01N 24/08 (2006.01); G01N 33/24 (2006.01); G01R 33/44 (2006.01);
U.S. Cl.
CPC ...
G01B 7/34 (2013.01); G01N 5/02 (2013.01); G01N 24/081 (2013.01); G01N 33/24 (2013.01); G01R 33/448 (2013.01);
Abstract
Measurements of a core sample at scales of measurement that differ by multiple orders of magnitude can be used to calculate a value that fairly represents surface roughness of the core sample. This surface roughness value can be used to determine petrophysical properties of the subsurface formation from which the core sample was obtained. The measurements can be nuclear magnetic resonance (NMR) diffusion-relaxation and gas-adsorption measurements. Surface relaxivities at the different scales are determined from the measurements and a ratio those surface relaxivities can be used to calculate the surface roughness value.