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:
Oct. 05, 2021
Filed:
Aug. 30, 2018
Applicant:
Subsea 7 Limited, Sutton, GB;
Inventor:
James Andrew Jamieson, Balmedie, GB;
Assignee:
Subsea 7 Limited, Sutton, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/035 (2006.01); E21B 34/04 (2006.01); E21B 41/04 (2006.01);
U.S. Cl.
CPC ...
E21B 33/0355 (2013.01); E21B 34/04 (2013.01); E21B 41/04 (2013.01);
Abstract
An auxiliary control system, having a method for controlling same, controls subsea equipment such as a tree or manifold, for example, in the event of failure of a control umbilical. A power unit is installed subsea, and then a control tool is coupled to the subsea equipment. Control signals from topside source are transmitted to the power unit, which powers and controls the control tool in response to the control signals to operate a control element of the subsea equipment, such as a valve.