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. 21, 2022
Filed:
Feb. 02, 2018
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Larry DeLynn Chambers, Kingwood, TX (US);
Neelesh V. Deolalikar, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/06 (2006.01); E21B 4/02 (2006.01); E21B 34/06 (2006.01); E21B 47/024 (2006.01); F16K 11/074 (2006.01);
U.S. Cl.
CPC ...
E21B 7/068 (2013.01); E21B 7/062 (2013.01); E21B 4/02 (2013.01); E21B 34/06 (2013.01); E21B 47/024 (2013.01); F16K 11/0743 (2013.01);
Abstract
A drill string steering system includes a flow manifold and a rotary valve. An actuation flow channel and a backflow channel are rotatable with respect to piston flow channels of the flow manifold. The actuation flow channel is rotatable relative to the flow manifold to increase or decrease flow toward the piston for controlling actuation of the piston. The backflow channel is rotatable relative to the flow manifold to increase or decrease flow away from the piston to the annulus for controlling retraction of the piston.