Patent ID: 6715555
Filing Date: 2004-04-06
Classification: E21B

Abstract:
An assembly for operating a pressure responsive downhole function of a subsea well production system, comprising:a wellhead body having a vertical bore therethrough and a lateral fluid passageway for connecting the vertical bore with a remote source of pressure fluid; a tubing hanger adapted to be lowered into a landed position with the vertical bore of the wellhead body, the tubing hanger having a tubing vertical bore for communication with a tubing string suspended within a well bore, and a tubing fluid passageway which, when the tubing hanger is landed in the bore of the wellhead body, is oriented into a desired rotational position in which one end is in sealed fluid communication with the lateral fluid passageway in the wellhead body and an opposing end in fluid communication with the pressure responsive function; a poppet valve mounted in the tubing fluid passageway in the tubing hanger and adapted, when open, to permit fluid pressure from the remote source to be supplied to the pressure responsive function; a port connecting with the tubing fluid passageway with the pressure responsive function; an adapter body with an adapter bore therein and sealably and removably mounted on the tubing hanger to connect the adapter bore with the port, a valve member mounted on the adapter body for movement to selectively close and open the port to the adapter bore; an actuator for moving the valve member; the adapter body having an adapter port for connecting the port with another source of pressure fluid, so that, when the valve member is open, fluid from another source may be introduced into tubing passageway in the body hanger to test the sealing integrity of the closed poppet valve, and, when the valve member is closed, the adapter may be removed from the tubing hanger.