Patent · US Active

Apparatus for gripping a tubular on a drilling rig

US8567512B2 · kind B2 · utility

37Cited by

313References

19Claims

0Family size

Assignee

Weatherford/Lamb, Inc. · US

Inventors

Albert C. Odell, II · Kingwood, US
Richard L. Giroux · Cypress, US
Tuong Thanh Le · Houston, US
Gary Thompson · Katy, US
Karsten Heidecke · Houston, US
Joerg Lorenz · Burgwedel, DE
Doyle Frederic Boutwell, Jr. · Houston, US
Michael Hayes · Belleville, US

Key dates

Filing date	Jan 19, 2011
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Feb 25, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/0422
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Methods and apparatus are provided for running tubulars into and out of a wellbore. A tubular handling system having a tubular gripping apparatus having a gripping mechanism and a sensor adapted to track movement of the gripping mechanism, wherein the sensor sends a signal to a controller when the gripping apparatus is in a position that corresponds to the gripping apparatus being engaged with the tubular.

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