Title:
TUBULAR HANDLING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2009/135223
Kind Code:
A3
Abstract:
In one embodiment, a tubular gripping assembly for use with a top drive to handle a tubular includes a tubular gripping tool having a mandrel (110) and gripping elements operatively coupled to the mandrel; and a link assembly (113) attached to the mandrel, wherein a load of the link assembly is transferred to the mandrel. In another embodiment, the tubular gripping assembly includes a swivel (305) having selectively actuatable seals. In yet another embodiment, the tubular gripping assembly includes a thread compensator (540) to facilitate tubular make-up. In yet another embodiment, the tubular gripping assembly includes a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.
Inventors:
LIESS MARTIN (DE)
HOOKER JOHN D II (DE)
GROSCH REINHARD (DE)
KOTSCHY THOMAS (DE)
CARLSSON ANDREAS (DE)
HOOKER JOHN D II (DE)
GROSCH REINHARD (DE)
KOTSCHY THOMAS (DE)
CARLSSON ANDREAS (DE)
Application Number:
PCT/US2009/042753
Publication Date:
October 20, 2011
Filing Date:
May 04, 2009
Export Citation:
Assignee:
WEATHERFORD LAMB (US)
LIESS MARTIN (DE)
HOOKER JOHN D II (DE)
GROSCH REINHARD (DE)
KOTSCHY THOMAS (DE)
CARLSSON ANDREAS (DE)
LIESS MARTIN (DE)
HOOKER JOHN D II (DE)
GROSCH REINHARD (DE)
KOTSCHY THOMAS (DE)
CARLSSON ANDREAS (DE)
International Classes:
E21B19/16; E21B3/02
Domestic Patent References:
| WO2007070805A2 | 2007-06-21 |
Foreign References:
| US20080059073A1 | 2008-03-06 | |||
| US20020074132A1 | 2002-06-20 |
Attorney, Agent or Firm:
PATTERSON, William, B. et al. (LLP3040 Post Oak Blvd., Suite 150, Houston TX, US)
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