Patent ID: 6591914
Filing Date: 2003-07-15
Classification: E21B

Abstract:
A hydraulic control system for controlling operation of multiple well tool assemblies interconnected thereto, the system comprising:multiple control modules, each of the control modules being interconnected to a corresponding one of the well tool assemblies, each of the control modules being interconnected between at least one first flowpath extending to a remote location and at least one second flowpath extending to the corresponding well tool assembly, and each of the control modules including a member which displaces in response to pressure on the first flowpath, each of the members being displaceable between a first position in which fluid communication is permitted between the first and second flowpaths, and at least one second position in which fluid communication between the first and second flowpaths is prevented, wherein in the second position of the member the second flow path is isolated from fluid communication therewith, thereby preventing actuation of the corresponding well tool assembly.