Patent ID: 8499842

Claim:
A dual barrier plug system, for use with a wellhead having a first tubular member having a first interior bore, comprising: a second tubular member, having an upper and a lower end, associated with the first tubular member, the second tubular member having a second interior bore; a dual barrier plug, having an upper and a lower end, an outer wall surface, a third interior bore, and a valve associated with the lower end of the dual barrier plug, the valve, upon actuation, providing selective fluid flow to the third interior bore of the dual barrier plug, and the dual barrier plug being received within the second interior bore of the second tubular member; a valve selector member having an upper end and a lower end, and an outer wall surface, the valve selector member being received, and selectively moveable within the third interior bore of the dual barrier plug, the valve selector member including a valve actuator member to actuate the valve associated with the dual barrier plug; a lower seal associated with the lower end of the dual barrier plug adapted to provide a seal between the outer wall surface of the dual barrier plug and the first interior bore of the first tubular member; an upper seal associated with the upper end of the dual barrier plug, disposed between the outer wall surface of the dual barrier plug and the second interior bore of the second tubular member, and disposed between the outer wall surface of the valve selector member and the third interior bore of the dual barrier plug, whereby upward fluid flow from below the lower end of the dual barrier plug may be prevented by the upper and lower seals; and a running tool which moves the dual barrier plug and the valve selector member into the second tubular member, and which moves the valve selector member within the dual barrier plug to open the valve associated with the dual barrier plug.