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:
Sep. 03, 2019

Filed:

May. 24, 2017
Applicant:

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

Inventors:

Vivek Anand, Sugar Land, TX (US);

Ravinath Kausik Kadayam Viswanathan, Sharon, MA (US);

Tianmin Jiang, Bellaire, TX (US);

Erik Rylander, Frisco, TX (US);

Mansoor Ali, Sugar Land, TX (US);

Richard E. Lewis, Longmont, CO (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/32 (2006.01); G01N 24/08 (2006.01); G01R 33/44 (2006.01);
U.S. Cl.
CPC ...
G01N 24/082 (2013.01); G01N 24/081 (2013.01); G01R 33/448 (2013.01); G01V 3/32 (2013.01); Y02A 90/344 (2018.01);
Abstract

Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.


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