Abstract: A method and apparatus for sealing a well annulus, the apparatus comprising a resilient sealing element molded in a upwardly oriented frustro-conical form affixed to a packer body. A running tool is mated with the packer body, the running tool having an internal bore adapted to collapse the sealing element to the diameter of the internal bore. The packer body is mated with a tubing screen by right hand threads and the running tool, packer body and tubing screen lowered into a well casing at the end of a pipe string. The well seal is activated when the pipe string is rotated in a clock-wise direction, disengaging and withdrawing the running tool and releasing the skirt which expands to seal with the internal walls of the casing.

Abstract: A well sealing apparatus, and method of use, which seals between tubular goods and a well casing without the use of a sealing tool run separately. The apparatus has a resilient skirt which is sealed against the well casing by split rings which are released from containment by the assembly as the assembly is released from the drill pipe.

Abstract: A device for the support of elongate members, such as tubing in a well bore, by a stationary gripping jaw and a movable gripping jaw. The movable gripping jaw is moved by a threaded shaft which pivots about one end into and out of engagement with a partially threaded nut to facilitate rapid movement of the movable gripping jaw relative to the stationary gripping jaw while maintaining the movable gripping jaw substantially vertical at all times. The stationary gripping jaw may be selectively positioned to accommodate a range of selected tubing sizes.