Valve control system

Details Valve control system Valve control system

E - Fixed Constructions

21

B

166/51.1

E21B 7/12 (2006.01) E21B 34/04 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1314807

ABSTRACT OF THE DISCLOSURE A hydraulic control system for controlling a retainer valve in an underwater well test system. The control system is contained in a housing in the test string above the retainer valve. The control system and valve are operated by a surface control manifold via control conduits extending between the manifold and control system housing. The system provides opening and closing and very quick closure of the retainer valve by eliminating the requirement for closing pressure to be conducted through a long conduit from surface and by utilizing well pressure to close the valve and lock the valve closed. One embodiment of the control system requires a pressure pulse from surface to start quick retainer valve closure. Another embodiment of the control system monitors control conduits for loss of pressure while the retainer valve is open and auto- matically closes the valve on loss of control pressure. This control system permits killing fluid to be pumped through the retainer valve into the well after automatic closure or control system operation to reopen the valve and monitor. (3690Y)

608375

Affiliated with

Also associated with

Rating

Valve control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1224491