Abstract: A wellhead system, connector, and method of assembling a wellhead system. The connector includes a member having a set of left-hand threads and a set of right-hand threads on its interior surface. The connector provides a quick connection to threads on wellhead components such as a tubing head and a casing head.

Abstract: A wellhead system, connector, and method of assembling a wellhead system utilizes a connector which includes a set of left-hand threads and a set of right-hand threads.

Abstract: A suspension nut for use in a wellhead assembly of an oil and/or gas well is provided. The nut includes a lower body portion threaded for connection to the wellhead assembly. It also includes an upper body portion adapted to support equipment in the well. The upper body portion is spaced from a surface of the wellhead assembly in the absence of force applied thereto when the lower body portion is connected to the wellhead assembly. The upper body portion is adapted to be forced into abutment with the surface in reaction to the weight of equipment supported by the upper body portion.

Abstract: A communication joint for use in a well is disclosed. The communication joint includes a one-piece tubular body having an exterior surface adapted to form a slidable fluid seal with a wellhead member of the well. The tubular body includes first and second fluid conduits extending axially along and positioned in the tubular body, each conduit providing a fluid passageway independent of the other fluid conduit. Preferably, the first and second fluid conduits extend axially above and below the exterior surface of the body.

Abstract: A pipe connector especially useful in tying back to a subsea wellhead with a marine riser. The connector comprises a body or sub, a collar surrounding the sub and carrying anti-rotation keys and a lock ring, and an actuator nut surrounding and threaded to the sub. The anti-rotation keys prevent rotation of the collar and the nut with respect to the receptacle into which the connector is run, and rotation of the sub with respect to the collar and nut locks the connector into the receptacle and establishes a metal-to-metal seal therewith.