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:
Jul. 10, 2018
Filed:
Sep. 14, 2012
Michael Boyd, Nisku, CA;
Michael Boyd, Nisku, CA;
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
The invention relates to a rotating flow control device and methods of using the same for controlling wellbore fluids at the head of a riser diverter for use in offshore drilling operations or the head of a blowout preventer stacks annular for conventional land-based drilling operations. The rotating flow control device comprises a stationary housing to be mounted on the head of a riser diverter or the blowout preventer stacks annular, an inner tubular shaft that permits the passage of a tubular, sealed bearing elements for supporting and permitting the axial rotation of the inner tubular shaft, and an elastomeric stripper element attached to the inner tubular shaft for sealing around the tubular.