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:
Jan. 03, 2012
Filed:
Feb. 17, 2006
Arvid Iversen, Nesttun, NO;
Arvid Iversen, Nesttun, NO;
AGR Subsea AS, Straume, NO;
Abstract
The invention relates to a centralization and running tool (CTR) in a subsea installation in connection with offshore related oil and gas exploration, where the subsea installation (SCM) is arranged to be placed on the ocean bottom or a drilling template and comprises a pipe-formed body (), at least partially open at the top and extended, arranged to receive and carry through a drill stem () from a drilling rig or a drilling vessel. The centralization and running tool () is arranged to surround the drill stem () and to be placed in the pipe-formed body (), and the centralization and running tool () comprises, together with the drill stem (), a rotary packing housing () with a number of seals () that lie against the drill stem (), and the packing housing (), in accordance with the movements of the drill stem (), is arranged for radial movement to take up angular deviations of the drill stem (). The invention also relates to a method to provide a fluid-tight seal against a drill stem () and against the surroundings in a subsea installation.