Patent ID: 6276386
Filing Date: 2001-08-21
Classification: E21B,F16K,Y10T

Abstract:
An apparatus comprising:a body having a longitudinal axis, a first end and a second end, said body being formed from a sidewall defining a bore positioned along said longitudinal axis and extending therethrough, wherein said first end of said body forms a substantially flat face;a stem having a portion positioned within the bore of the body and being movably mounted in said body for movement from a first position to a second position with respect to said body;a port defined through the sidewall communicating with said bore;a valve means mounted outside of the sidewall and positioned in flow communication with said port, wherein said valve means is adapted to charge said bore with fluid;a valve coupler having a first end, a second end, a fluid line, and a second valve means disposed within said valve coupler and in flow communication with said fluid line, said first end of said valve coupler being configured to complement said flat face of said body, said valve coupler being connected to a down hole valve of a tubing hanger in a subsea environment;fastening means adjacent to said first end of said body for matingly attaching said substantially flat face of said first end of said body to said surface of said first end of said valve coupler;adjustment means attached to said stem for adjusting the position of said stem within said body in such a manner that activation of said stem further actuates said second valve means between an open and closed position in order to communicate fluid flow pressure through said second valve means to selectively charge a downhole valve.