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:
Nov. 07, 2023
Filed:
Dec. 12, 2017
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Carlos Junior Urdaneta, Houston, TX (US);
James Dean, Houston, TX (US);
Oscar Montemayor, Missouri City, TX (US);
Rajnarayanan Subbu Balsamy, Sugar Land, TX (US);
Dinh Quy Nguyen, Sugar Land, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 6/02 (2006.01); B28C 7/04 (2006.01); B28C 9/00 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
B28C 7/0418 (2013.01); B28C 9/004 (2013.01); E21B 33/13 (2013.01); G05B 6/02 (2013.01);
Abstract
Methods and apparatus for controlling a characteristic of a cement slurry at a cementing unit, including regulating a characteristic of the cement slurry employing a closed loop feedback arrangement in the cementing unit, and adjusting a gain of the closed loop feedback arrangement in response to sampling an error of the characteristic.