The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2018
Filed:
Mar. 28, 2014
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventor:
Kevin Wood, Houston, TX (US);
Assignee:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/07 (2006.01); E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
E21B 19/07 (2013.01); E21B 19/16 (2013.01);
Abstract
A method and apparatus for attaching tubulars to a tubular string in a well bore. The apparatus includes a drill rig elevator configured with a rotatable set of slips that grip the tubular to be added to the tubular string. As a result, the elevator can grip the tubular to pick up and position the tubular and can continue to grip the tubular as the tubular is spun to be threaded onto the tubular string in the well bore. The slips can also be moved axially to compensate for movement of the tubular toward the tubular string as the tubular threadingly attaches to the tubular string.