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.

Date of Patent:
Nov. 07, 2023

Filed:

Jun. 05, 2020
Applicant:

Itrec B.v., Schiedam, NL;

Inventor:
Assignee:

ITREC B.V., Schiedam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); E21B 19/09 (2006.01); B63B 35/44 (2006.01); B63B 3/14 (2006.01);
U.S. Cl.
CPC ...
E21B 19/09 (2013.01); B63B 35/4413 (2013.01); E21B 19/006 (2013.01); B63B 2003/147 (2013.01);
Abstract

The first aspect of the present invention relates to an offshore drilling system and a method for performing subsea wellbore related activities involving a riser extending between the vessel and a subsea wellbore. The offshore drilling system comprising a drilling vessel with a floating hull, a drilling tower and a tubular string main hoisting device. A vertically mobile working deck with a rig floor slip device is positioned above the moonpool. A telescopic joint and a diverter are provided, wherein the inner barrel of the telescopic joint is secured to the diverter via a flexible joint. Furthermore an integrated heave compensation system is provided such that said travelling block and the mobile working deck move synchronously in heave compensation.


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