Patent ID: 7275591
Filing Date: 2007-10-02
Classification: E21B,F16L

Abstract:
1. A tubing hanger for use in a wellhead housing, said wellhead housing having an outer wall and a central bore in which the tubing hanger is sealed and supported, the tubing hanger comprising: a generally tubular body forming a vertical central bore which provides a production bore extending generally axially through the body; the lower end of the body being adapted for suspending a tubing string, and the upper end of the body being adapted for receiving a landing joint; a side stem port formed through the body intermediate its upper and lower ends providing access to the vertical central bore; seals on the exterior of the body above and below the side stem port for sealing the body in the central bore of the wellhead housing; a ball valve member having a spherical exterior surface sealed and seated from above and below within the central bore of the body, the ball valve member forming a through port extending therethrough axially aligned with the production bore, the ball valve member being rotatable in its seated position between open and closed positions with the through port being aligned with the production bore when in the open position, the ball valve member forming a slot in its exterior surface proximate the side stem port; and a ball stem assembly sealed for axial rotation in the stem port of the body, one end of the ball stem assembly providing a coupling for rotatably coupling to the slot in the ball valve member, the other end of the ball stem assembly extending through the outer wall of the wellhead housing and being coupled to an operator located exterior the wellhead housing for rotating the ball stem assembly, and thus the ball valve member, between open and closed positions.