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:
Aug. 22, 2023

Filed:

Dec. 08, 2020
Applicant:

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

Inventors:

Reda Karoum, Houston, TX (US);

Yiqiao Tang, Belmont, MA (US);

Shin Utsuzawa, Sugar Land, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); G01N 33/28 (2006.01); G01N 24/08 (2006.01);
U.S. Cl.
CPC ...
E21B 49/0875 (2020.05); E21B 49/086 (2013.01); G01N 24/08 (2013.01); G01N 33/2823 (2013.01);
Abstract

An NMR sensor is configured to make NMR measurements of a fluid and includes a housing defining a chamber. A nonmagnetic cap is deployed in the chamber and divides the chamber into first and second regions. The cap is sized and shaped to define a fluid collector in the first region. A magnet assembly is deployed in the second region and is configured to generate a static magnetic field in the fluid collector. A radio frequency (RF) coil is interposed between the magnet assembly and the cap and is configured to generate an RF magnetic field in the fluid collector. Methods include using the sensor to make NMR measurements of multi-phase fluids such as drilling fluid.


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