Invention Grant
- Patent Title: Drilling rig
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Application No.: US14760440Application Date: 2014-01-13
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Publication No.: US09856705B2Publication Date: 2018-01-02
- Inventor: Michael Kannegaard , Allan McColl
- Applicant: Maersk Drilling A/S
- Applicant Address: DK Copenhagen K
- Assignee: MAERSK DRILLING A/S
- Current Assignee: MAERSK DRILLING A/S
- Current Assignee Address: DK Copenhagen K
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: DKPA201370017 20130111; DKPA201370604 20131022
- International Application: PCT/EP2014/050509 WO 20140113
- International Announcement: WO2014/108541 WO 20140717
- Main IPC: E21B19/00
- IPC: E21B19/00 ; E21B15/02 ; E21B19/14 ; E21B19/15

Abstract:
Embodiments of an offshore drilling rig including—a drill floor deck having a hole defining a first well center;—a first mast upwardly extending relative to the drill floor deck;—a first hoisting system supported by the first mast and configured for hoisting and lowering tubular equipment through the first well center; wherein the load bearing structure of the first hoisting system is displaced from and located on a first side of the first well center;—first pipe handling equipment for moving tubular equipment to the first hoisting system so as to allow the first hoisting system to hoist or lower the tubular equipment through the first well center; wherein the first pipe handling equipment is operable to move tubular equipment at least partly underneath the load bearing structure and/or through a gap formed in said load bearing structure.
Public/Granted literature
- US20150354293A1 DRILLING RIG Public/Granted day:2015-12-10
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