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. 06, 2003
Filed:
May. 10, 2000
Eddie E. Dore, Sugarland, TX (US);
Britt O. Braddick, Houston, TX (US);
TIW Corporation, Houston, TX (US);
Abstract
A subsea riser disconnect assembly may be actuated from a drilling rig DR by axial movement of an upper riser relative to a lower riser for disconnecting the upper riser from the lower riser A subsea riser valve assembly may be actuated from the drilling rig DR by axial movement of the upper riser relative to the lower riser for sealing an interior portion of the lower riser and well bore WB below the subsea riser valve assembly A drill pipe disconnect may be actuated from a drilling rig DR, either onshore or offshore, for disconnecting an upper portion of drill pipe from a lower portion of drill pipe The drill pipe disconnect may be actuatable by hydraulic and/or mechanical forces applied to the drill pipe disconnect from the drilling rig DR. The drill pipe disconnect may be compatible for use with or without the subsea riser disconnect assembly and/or the subsea riser valve assembly