Abstract: A practice apparatus for use in training a horse and rider for equine barrel racing. The practice apparatus is a barrel that uprights itself when tilted from a vertical position toward a horizontal position. The barrel has an internal assembly with a stretchable section that connects the barrel to a ground loop. This stretchable section allows for limited stretching of the internal assembly when the barrel is tilted whenever it is hit by a horse or its rider during practice.

Abstract: A practice apparatus is provided for use in training a horse and rider for equine barrel racing. The practice apparatus is a barrel that uprights itself when tilted from a vertical position toward a horizontal position. The barrel has an internal assembly with a stretchable section that connects the barrel to a ground loop. This stretchable section allows for limited stretching of the internal assembly when the barrel is tilted whenever it is hit by a horse or its rider during practice.

Abstract: Embodiments of the invention include a squeeze chute for temporarily confining an animal while it is being inspected or treated. Certain embodiments of the squeeze chute include side grippers, a rear pusher, and a sling that fits under the ventral section of the animal being confined. The side grippers and the rear pusher cooperate to restrain the movement of the animal within the squeeze chute and the sling ensures that the animal can not lay down. Certain embodiments of both the side grippers and the pusher are rotatable about the top rails of the chute as well as vertically extensible and retractable from the top rails on which they are mounted. The sling is typically a rectangular strip of flexible material that is attached on each end to an extension tube that is vertically extensible and retractable from the top rails.

Abstract: Embodiments of the invention include a squeeze chute for temporarily confining an animal while it is being inspected or treated, wherein the squeeze chute has a pair of side grippers and a rear pusher that cooperate to restrain the movement of the animal within the squeeze chute. Certain embodiments of both the side grippers and the pusher are rotatable about the top rails of the chute as well as vertically extensible and retractable from the top rails on which they are mounted.

Abstract: A system for positioning a trailer mounted coiled tubing tensioner either in a first stowed position on the deck of a transport trailer or in a second position resting on an elevated rig floor of a drilling rig is described. The system for selectably elevating a coiled tubing tensioner from its first stowed position to its second position on the rig floor of a drilling rig includes the cooperative operation of the coiled tubing tensioner and its frame, multiple pivotable swing arms attached to the trailer at one end and the tensioner frame at the other end, an elevatable mast, a crown block, a drawworks winch, a top drive, a pair of tensioner lifting winches and multiple lifting lines deployed from the mast and reeved through sheaves mounted on the tensioner frame and the top drive.

Abstract: A threaded tubing end assembly having a tubing with a transverse first end, a tubing through bore, and a longitudinal weld seam; a threaded adapter having an adapter through bore, and an adapter body having a threaded first end having a male thread and an opposed second end with an external transverse shoulder surrounding a reduced diameter elongated shank with an external longitudinal slot; a circumferential weld; and a longitudinal weld.

Abstract: A system for positioning a trailer mounted coiled tubing tensioner either in a first stowed position on the deck of a transport trailer or in a second position resting on an elevated rig floor of a drilling rig is described. The system for selectably elevating a coiled tubing tensioner from its first stowed position to its second position on the rig floor of a drilling rig includes the cooperative operation of the coiled tubing tensioner and its frame, multiple pivotable swing arms attached to the trailer at one end and the tensioner frame at the other end, an elevatable mast, a crown block, a drawworks winch, a top drive, a pair of tensioner lifting winches and multiple lifting lines deployed from the mast and reeved through sheaves mounted on the tensioner frame and the top drive.

Abstract: A simple threaded end connector is easily attached to the end of a tube.

Abstract: A simple flexible coiled tubing connector couples the ends of two separate sections of tubing so that mutual axial tensile forces can be transferred between the two sections. The tubing connector is intended for use with tubing which may be coiled on a storage reel and freely run through a coiled tubing straightener or tensioning device. The tubing connector is not required to contain pressure, transfer compressive axial loads, torsion, or loads transverse to the axes of the tubes.

Abstract: The combination workover and drilling rig of the present invention combines a capability to drill a well, as well as perform well maintenance and service, using either or both tubing with threaded tubular connections or coiled tubing. A mast and a coiled tubing injector are independently mounted to a support platform and can be operated independently of each other. The coiled tubing injector is selectably elevatable into a stowed position, a ready position, or an operating position.

Abstract: A device for training a user to dally having a horse assembly, a track assembly, a cow head assembly, a pulling mechanism and a release mechanism. Whenever the release mechanism is activated by the user, the cow head assembly moves away from the user along the track assembly. During the cow head's movement, the user can practice roping and dallying. The training device may optionally have a rewind mechanism to allow the user to return the cow head assembly to its initial location without the user having to dismount the horse assembly.

Abstract: The injector of the invention provides a means and method for injecting either coiled tubing or conventional stalked tubing into and from a well by developing axial forces in the tubing. The curvature of the coiled tubing is simultaneously selectably altered on the opposite side of the injector from the wellhead. To develop traction on the tubing, the injector relies upon an array of opposed pairs of annularly grooved driven rollers which are urged into contact with the tubing. The pairs of rollers are mounted in an alternating pattern 90° apart so that the tubing is well supported and urged into roundness. Integral with the injector, but deactivated when the injector is used with stalked tubing, is a selectably operable tubing straightener which serves to straighten the tubing before entry into the well and also to recurve the tubing when being withdrawn from the well to control its arcuate path between the injector and the tubing storage reel.

Abstract: The injector of the invention provides a means and method for injecting either coiled tubing or conventional stalked tubing into and from a well by developing axial forces in the tubing. The curvature of the coiled tubing is simultaneously selectably altered on the opposite side of the injector from the wellhead. To develop traction on the tubing, the injector relies upon an array of opposed pairs of annularly grooved driven rollers which are urged into contact with the tubing. The pairs of rollers are mounted in an alternating pattern 90° apart so that the tubing is well supported and urged into roundness. Integral with the injector, but deactivated when the injector is used with stalked tubing, is a selectably operable tubing straightener which serves to straighten the tubing before entry into the well and also to recurve the tubing when being withdrawn from the well to control its arcuate path between the injector and the tubing storage reel.

Abstract: A means and method for supporting and applying transverse loads to coiled tubing during its injection into and withdrawal from a well by using novel rollers having coaxial segmented arcuate faces. The arcuate faces have arcs with the same radius as that of the tubing to be supported and are mutually concentric, but are independently rotatable. The novel rollers may be both driven and undriven.