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.

Date of Patent:
Apr. 02, 2019

Filed:

Sep. 25, 2014
Applicant:

Schlumberger Technolgoy Corporation, Sugar Land, TX (US);

Inventors:

Andrea Valori, Dammam, SA;

Mohammed Badri, Al-Khobar, SA;

Reza Taherian, Missouri City, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 24/08 (2006.01); G01N 15/08 (2006.01); E21B 49/00 (2006.01); G01V 3/32 (2006.01); G01R 33/44 (2006.01); E21B 43/20 (2006.01);
U.S. Cl.
CPC ...
G01N 24/081 (2013.01); E21B 49/00 (2013.01); G01N 15/088 (2013.01); G01V 3/32 (2013.01); E21B 43/20 (2013.01); G01R 33/448 (2013.01);
Abstract

For a given medium, a property may be inferred based on nuclear magnetic resonance (NMR) data. NMR data that includes two or more different NMR signals are used. Differences between any particular two of the two or more different NMR decays are computed and a distribution is produced based on the computed differences. The property of the medium may be inferred using the produced distribution. The produced distribution features the change in a parameter. The NMR distributions may be Tdistributions, Tdistributions, diffusion, or any other type of NMR data. The NMR data may be acquired: at different times, for different levels of invasion, before and after water flooding, or for different saturation states. The inferred property may pertain to the oil and gas industry, material analysis, medicine, pharmaceuticals, the process industry, or the food industry. For example, the inferred property may be the porosity of a subsurface formation.


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