| Patent Number |
Title Of Patent |
Date Issued |
| RE31881 |
Setting tools and liner hanger assembly |
May 14, 1985 |
| A liner hanger and setting tool for use in oil well completions employing a liner hanger having a one piece body member and spring biased slips and a setting tool having a hydraulically actuated slip release mechanism normally retaining the slips in a retracted position and operable upon |
| 4601343 |
PBR with latching system for tubing |
July 22, 1986 |
| A liner hanger system for wellbores where the liner hanger includes a polished bore receptacle (PBR) with a releasable latching device. In use, a string of tubing with a sealing assembly adapted for cooperation with the PBR can be releasably latched to the PBR to limit upward travel of t |
| 4498534 |
Liner hanger assembly |
February 12, 1985 |
| A liner hanger for use in an oil well completion comprising a hanger assembly which can be passed through a tubular pipe and has a continuous bypass and a shaped area for passing through fluid and cuttings in the pipe. The hanger assembly has an inclined cam surface which is spirally |
| 4497371 |
Setting tool and retrievable landing assembly |
February 5, 1985 |
| Apparatus and method of positioning and seating a retrievable landing assembly within a packer bore receptacle in a well bore. Latching measure provided for releasably securing a landing assembly in the packer bore receptacle. The latching means which are normally in a retracted position |
| 4399873 |
Retrievable insert landing assembly |
August 23, 1983 |
| Apparatus and method of positioning and seating a retrievable insert landing assembly within a packer bore receptacle in a well bore. Means are provided for releasably securing a landing assembly in the packer bore receptacle by engaging an annular groove in the PBR with latching element |
| 4287949 |
Setting tools and liner hanger assembly |
September 8, 1981 |
| A liner hanger and setting tool for use in oil well completions employing a liner hanger having a one piece body member and spring biased slips and a setting tool having a hydraulically actuated slip release mechanism normally retaining the slips in a retracted position and operable upon |
