Patent ID: 7322419

Claim:
A system for controlling a hydraulically operated downhole tool for use in a well bore, the hydraulically operated tool including a hydraulically operating mechanism controlled by fluid pressure, the system comprising: a control sub comprising a tubular assembly having an inner sleeve and an outer sleeve sealingly engaged to each other and a through passage between an inlet and a first outlet, the inlet being adapted for connection on a workstring, the first outlet being adapted for connection to the hydraulically operated tool, one or more radial outlets extending generally transversely of the tubular assembly, an obturating member moveable between a first position permitting fluid flow through the one or more radial outlets and a second position closing the one or more radial outlets, wherein the obturating member is moved from the first position to the second position by a compressive force applied from the hydraulically operated tool; and wherein movement of the obturating member regulates the fluid pressure from the first outlet to hydraulically control the hydraulically operated tool.