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. 22, 2023
Filed:
Dec. 15, 2022
Hughes Tool Company Llc, Highlands Ranch, CO (US);
William James Hughes, Highlands Ranch, CO (US);
Hughes Tool Company LLC, Highlands Ranch, CO (US);
Abstract
Disclosed herein are various embodiments of an Annular Pressure Control Ram Diverter designed to be positioned below the conventional blowout preventer stack, and which will be activated during near balanced drilling operations to seal the annulus between the drill pipe and the casing. Returned drilling fluid and produced fluids are diverted up the annulus between the casing and intermediate casing and through a well head located below an all-inclusive BOP stack. The Annular Pressure Control Ram Diverter employs hydraulic rams to compress a flexible seal around the drill pipe. Some embodiments have an elliptical internal cavity which ensures that the elliptical seal elements cannot rotate. Other embodiments use ridges and grooves on the seal elements and housing to prevent rotation of the seal elements. Doors are provided on each side of the Annular Pressure Control Ram Diverter to permit changing of the seal elements.