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:
May. 04, 2021
Filed:
Nov. 30, 2016
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/02 (2006.01); E21B 45/00 (2006.01); E21B 7/06 (2006.01); E21B 44/00 (2006.01); E21B 7/04 (2006.01); E21B 21/08 (2006.01); E21B 47/024 (2006.01);
U.S. Cl.
CPC ...
E21B 44/02 (2013.01); E21B 7/04 (2013.01); E21B 7/06 (2013.01); E21B 21/08 (2013.01); E21B 44/00 (2013.01); E21B 45/00 (2013.01); E21B 47/024 (2013.01); G05B 2219/45129 (2013.01);
Abstract
A downhole closed loop method for controlling a curvature of a subterranean wellbore while drilling includes controlling a direction of drilling such that the drilling attitude is substantially equal to a setpoint attitude. A setpoint rate of penetration is processed in combination with a setpoint dogleg severity to compute a setpoint attitude increment. The setpoint attitude may be adjusted by the setpoint attitude increment. The setpoint attitude may be incremented at some interval to control the curvature of the wellbore while drilling.