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. 03, 2025
Filed:
Jul. 07, 2022
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Milan Subotic, Katy, TX (US);
Scott Richard Woolston, Spanish Fork, UT (US);
Christopher Paul Reed, West University, TX (US);
Pavel Annenkov, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/20 (2012.01); E21B 21/01 (2006.01);
U.S. Cl.
CPC ...
E21B 47/20 (2020.05); E21B 21/01 (2013.01);
Abstract
A flow regulation system for downlink communication includes a fixed flow valve and a variable flow valve on a discharge line. A pressure sensor is located between the fixed flow valve and the variable flow valve. A sinusoidal communication flow pattern in the drilling fluid is generated by adjusting the position of the variable flow valve based on measured valve pressures from the pressure sensor.