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:
Feb. 11, 2003
Filed:
Feb. 21, 2001
Applicant:
Inventors:
Bengt Gunnarson, Hundvåg, NO;
Per Olav Haughom, Tonstad, NO;
Assignee:
Triangle Equipment AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/410 ;
U.S. Cl.
CPC ...
E21B 3/410 ;
Abstract
A device for mutually independent control of regulating devices for controlling fluid flow between a hydrocarbon reservoir and a well includes a flow controller and a hydraulic actuator. The actuator is flow-relatedly arranged in series with at least two associated control valves in a path between two hydraulic pipes. The control valves are controlled to open for the flow of hydraulic liquid to the actuator by the pressure in the two hydraulic pipes, and the combination of two hydraulic pipes which are connected to an actuator is different for independently controllable regulating devices.