Patent · US Active

Tubular handling apparatus

US8752636B2 · kind B2 · utility

3Cited by

18References

22Claims

0Family size

Assignee

Weatherford/Lamb, Inc. · US

Inventors

Martin Liess · Seelze, DE
John D. Hooker, II · Houma, US
Reinhard Grosch · Geisa, DE
Thomas Kotschy · Burgdorf, DE
Andreas Carlsson · Skövde, SE

Key dates

Filing date	Jan 29, 2013
Grant date	Jun 17, 2014
Priority date	—
Expiry date	Jan 29, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/127
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

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. The tubular gripping assembly may also include one or more of a swivel having selectively actuatable seals, a thread compensator to facilitate tubular make-up, or a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.