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:
Aug. 23, 2022
Filed:
Sep. 23, 2016
Volker Peters, Niedersachsen, DE;
Andreas Peter, Celle, DE;
Christian Fulda, Lower Saxony, DE;
Heiko Eggers, Dorfmark, DE;
Harald Grimmer, Niedersachsen, DE;
Volker Peters, Niedersachsen, DE;
Andreas Peter, Celle, DE;
Christian Fulda, Lower Saxony, DE;
Heiko Eggers, Dorfmark, DE;
Harald Grimmer, Niedersachsen, DE;
BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US);
Abstract
An apparatus for drilling directional wellbores is disclosed that in one non-limiting embodiment includes a drive for rotating a drill bit, a deflection device that enables a lower section of a drilling assembly to tilt about a member of the deflection device within a selected plane when the drilling assembly is substantially rotationally stationary to allow drilling of a curved section of the wellbore when the drill bit is rotated by the drive and wherein the tilt is reduced when the drilling assembly is rotated to allow drilling of a straighter section of the wellbore, and at least one seal that isolates at least a surface of the member from outside environment. The at least one seal is lubricated by a sealed hydraulic unit