Invention Grant
- Patent Title: Tubular handling apparatus
- Patent Title (中): 管状处理装置
-
Application No.: US12435346Application Date: 2009-05-04
-
Publication No.: US08365834B2Publication Date: 2013-02-05
- Inventor: Martin Liess , John D. Hooker, II , Reinhard Grosch , Thomas Kotschy , Andreas Carlsson
- Applicant: Martin Liess , John D. Hooker, II , Reinhard Grosch , Thomas Kotschy , Andreas Carlsson
- Applicant Address: US TX Houston
- Assignee: Weatherford/Lamb, Inc.
- Current Assignee: Weatherford/Lamb, Inc.
- Current Assignee Address: US TX Houston
- Agency: Patterson & Sheridan, LLP
- Main IPC: E21B19/16
- IPC: E21B19/16 ; E21B19/08 ; E21B19/06

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 and gripping elements operatively coupled to the mandrel; and a link assembly 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 having selectively actuatable seals. In yet another embodiment, the tubular gripping assembly includes a thread compensator 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.
Public/Granted literature
- US20090274545A1 Tubular Handling Apparatus Public/Granted day:2009-11-05
Information query