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.

Date of Patent:
Jul. 21, 2020

Filed:

Oct. 07, 2016
Applicant:

Itrec B.v., Schiedam, NL;

Inventors:
Assignee:

ITREC B.V., Schiedam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/06 (2006.01); E21B 19/20 (2006.01); E21B 3/02 (2006.01); E21B 15/00 (2006.01); E21B 19/14 (2006.01); E21B 15/04 (2006.01); E21B 19/16 (2006.01); E21B 19/00 (2006.01); E21B 19/08 (2006.01); E21B 19/15 (2006.01); E21B 17/03 (2006.01);
U.S. Cl.
CPC ...
E21B 3/02 (2013.01); E21B 15/00 (2013.01); E21B 15/04 (2013.01); E21B 19/008 (2013.01); E21B 19/06 (2013.01); E21B 19/08 (2013.01); E21B 19/14 (2013.01); E21B 19/146 (2013.01); E21B 19/155 (2013.01); E21B 19/16 (2013.01); E21B 17/03 (2013.01);
Abstract

A method for servicing a top drive device of a wellbore drilling installation. The installation comprises a drilling tower, a drill floor having a well center through which a drilling tubulars string can pass along a firing line. A trolley is guided along a vertical trolley rail. A top drive device is attached to the trolley and comprises one or more top drive. A motion arm assembly comprises a base and an extensible and retractable motion arm, wherein the base is guided by a vertical motion arm rail. The motion arm has an operative reach that encompasses the firing line. The motion arm assembly is adapted to support at least one of a well center tool, e.g. an iron roughneck tool and a tubular gripper member, and allowing to bring said well center tool or tubular gripper member in the firing line. In order to remove a top drive motor from the top drive device whilst the rest of the top drive device remains attached to the trolley, the motion arm assembly and/or the trolley are operated so that the top drive motor is within the operative reach of the motion arm, the motion arm is operated to reach the top drive motor and the top drive motor is connected to the motion arm, and then the motion arm is used to support and/or lift, lower said top drive motor upon disconnection thereof from the rest of the top drive device.


Find Patent Forward Citations

Loading…