Caledyne Limited Patent applications |
Patent application number | Title | Published |
20120312556 | Seal - An annular sealing element to seal between metal surfaces for use in flanges, joints, packers and the like, located in oil and gas exploration and production equipment. The sealing element has inner and outer metal deformable surfaces joined at ends, defining an interior volume which is entirely filled with a plastic deformable material. The surfaces are arranged such that on compression of the element from the ends, the element will deform in a controlled manner on a cantilever principle. The volume of filler and the interior volume remain substantially equal during compression so that delamination does not occur. Thus the sealing element provides a seal combining the flexibility of elastomer seals with the integrity of a metal to metal seal. | 12-13-2012 |
20110290507 | Communication Method and Apparatus for Insert Completions - A method of providing a communication conduit for a down-hole tool includes the steps of: forming a communication port at an existing portion of the down-hole tool located below the valves of the Christmas tree; and extending the communication conduit through the formed port. | 12-01-2011 |
20110037231 | SHAFT SEAL FOR DOWN-HOLE TOOLS - A sealing apparatus for a downhole tool having a movable member ( | 02-17-2011 |
20110036585 | ACTUATOR DEVICE FOR DOWNHOLE TOOLS - An actuator device for downhole tools comprising: indexing means for progressively moving a rupturing member ( | 02-17-2011 |
20090056948 | Safety Valve - There is disclosed a safety valve for use in well bore operations, for example, in cooperation with a progressive cavity pump or rodpump. In one embodiment of the invention, a safety valve ( | 03-05-2009 |