Abstract: A tubing anchor apparatus has a plurality of slips supported on an inner housing, and a first fixed cone arrangement and a second movable cone arrangement, each of circumferentially spaced cone sections, supported at opposing ends of the slips. The cone sections have working faces sloped radially and longitudinally inwardly towards the slips such that actuating the second cone sections longitudinally towards the first cone sections displaces the slips radially outward to grip the wellbore casing. The cone sections are thus double acting so that the anchor tool both stops the tool from falling down the wellbore should the deployment tubing separate and stops the tool from coming up to allow the tubing to be tensioned. The spaced apart cone sections in lobes protects the slips from catching when inserting or removing from the wellbore, while providing a high-volume annulus flow through between the circumferential spaced cone sections.

Abstract: An apparatus for connecting a first wellsite tube to a second wellsite tube includes a collar configured to engage with outer conduits of the first and second wellsite tubes. A coupling is disposed inside the collar and includes a first end axially disposed from a second end. A first structure is configured to provide sliding engagement between the first end of the coupling and an inner conduit of the first wellsite tube. A second structure is configured to provide threaded engagement between the second end of the coupling and an inner conduit of the second wellsite tube. A plurality of radially extending ribs are disposed between the opposing ends of the collar and support the coupling inside the collar.

Abstract: An apparatus for connecting a first wellsite tube to a second wellsite tube includes a collar configured to engage with outer conduits of the first and second wellsite tubes. A coupling is disposed inside the collar and includes a first end axially disposed from a second end. A first structure is configured to provide sliding engagement between the first end of the coupling and an inner conduit of the first wellsite tube. A second structure is configured to provide threaded engagement between the second end of the coupling and an inner conduit of the second wellsite tube. A plurality of radially extending ribs are disposed between the opposing ends of the collar and support the coupling inside the collar.

Abstract: A tensioning tool assembly for supporting a string of oil production piping extending through a well bore includes an outer barrel and a telescoping inner mandrel slidably positioned within the outer barrel. The inner mandrel defines a plurality of axially-spaced slots configured to receive protruding members extending from the outer barrel to fix the relative axial position of the inner mandrel and outer barrel. In this manner, a string of production tubing may be axially displaced by moving inner mandrel to the desired axial position or tension and then rotating inner mandrel to lock the tensioning tool assembly and the attached production tubing. The inner mandrel may further define threaded features for attaching a pull rod and/or a central passageway for supplying fluid to control well pressures.