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:
Aug. 18, 2015

Filed:

May. 01, 2012
Applicant:

Stephen Paul Fenton, Aberdeen, GB;

Inventor:

Stephen Paul Fenton, Aberdeen, GB;

Assignee:

Vetco Gray U.K. Limited, Bridge of Don, Aberdeen, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/035 (2006.01); E21B 33/03 (2006.01); E21B 33/076 (2006.01); E21B 41/10 (2006.01); E21B 33/043 (2006.01); E21B 34/14 (2006.01);
U.S. Cl.
CPC ...
E21B 33/035 (2013.01); E21B 33/043 (2013.01);
Abstract

A system for maneuvering a plug in and out of a tubing hanger mounts to a subsea wellhead assembly. The system includes a tractor and an end effector that are sheltered in a housing. A control cable spools from a reel mounted on the housing and attaches to the tractor. The control cable provides communication from a remotely operated vehicle (ROV) to the tractor and end effector so that commands from the ROV via the control cable control the tractor and end effector. After the housing connects to the wellhead assembly, control signals from the ROV activate the tractor to drive the end effector into the wellhead assembly and command the end effector to set the plug in the tubing hanger, or to remove the plug from the tubing hanger.


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