| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 07/15/1986 | US4600056 Method and apparatus for completing well |
| 07/15/1986 | US4600055 Tubular well tool receiving conduit |
| 07/15/1986 | US4600054 For use in a wellhead flange for a production oil well |
| 07/15/1986 | CA1207660A1 Well sealing assembly |
| 07/09/1986 | EP0186969A1 Rotating fluid manifold |
| 07/09/1986 | CN85108328A Subsea wireline lubricator |
| 07/08/1986 | CA1207227A1 Ram type blowout preventers |
| 07/03/1986 | WO1986003799A1 Electric power supplying well head assembly |
| 07/03/1986 | WO1986003798A1 Diverter/bop system and method for a bottom supported offshore drilling rig |
| 07/02/1986 | EP0186317A1 Casing high angle wellbores |
| 07/02/1986 | CA1206872A Method of and apparatus for cutting and recovering of submarine surface casing |
| 07/02/1986 | CA1206871A Annular blowout preventer |
| 07/02/1986 | CA1206869A Process for improving vertical conformance in a near wellbore environment |
| 07/02/1986 | CA1206738A Polyamine fluid loss additive for oil well cements |
| 07/01/1986 | US4598290 Fiber optic penetrator for offshore oil well exploration and production |
| 07/01/1986 | US4597448 Subsea wellhead system |
| 07/01/1986 | US4597447 Diverter/bop system and method for a bottom supported offshore drilling rig |
| 06/24/1986 | US4596375 Hydraulic control of subsea well equipment |
| 06/18/1986 | EP0184973A2 Supporting system for a riser |
| 06/17/1986 | US4595239 Oil recovery mining apparatus |
| 06/17/1986 | US4595063 Subsea casing hanger suspension system |
| 06/17/1986 | US4595062 Well casing jack mechanism |
| 06/17/1986 | US4595059 Method of providing a conductor pipe to an opening portion of a well |
| 06/17/1986 | US4595058 Turbulence cementing sub |
| 06/17/1986 | US4595053 Metal-to-metal seal casing hanger |
| 06/17/1986 | US4595052 Reperforable bridge plug |
| 06/17/1986 | CA1206091A1 Breech block hanger support |
| 06/11/1986 | EP0184013A2 Method for the measurement of hydrostatic and gas pressure in a sealed bore hole |
| 06/10/1986 | US4593937 Device for connecting and disconnecting a tubular pipe movable inside a fixed tubular pipe |
| 06/10/1986 | US4593914 Wellhead sealing system |
| 06/10/1986 | US4593765 Tubing resettable well tool |
| 06/10/1986 | CA1205741A1 Pipe string tie-back connector |
| 06/05/1986 | WO1986003254A1 Non-return valve for bore hole sleeves |
| 06/04/1986 | EP0183409A1 Subsea wireline lubricator |
| 06/03/1986 | US4592426 In a fluid connection system |
| 06/03/1986 | US4592422 Casing hanger apparatus and method of installation therefor |
| 05/27/1986 | US4590995 Retrievable straddle packer |
| 05/27/1986 | CA1205010A1 Cylindrical gate valve apparatus and method |
| 05/20/1986 | US4589625 Hydraulically operated valves |
| 05/20/1986 | US4589495 Apparatus and method for inserting flow control means into a well casing |
| 05/20/1986 | US4589493 Subsea wellhead production apparatus with a retrievable subsea choke |
| 05/20/1986 | US4589492 Subsea well submersible pump installation |
| 05/20/1986 | US4589485 Downhole tool utilizing well fluid compression |
| 05/20/1986 | US4589484 Deployment system |
| 05/13/1986 | US4588035 Down hole blow out preventer and method of use |
| 05/13/1986 | US4588030 Well tool having a metal seal and bi-directional lock |
| 05/13/1986 | US4588029 Expandable metal seal for a well tool |
| 05/13/1986 | CA1204383A1 Well tool |
| 05/10/1986 | CN85107489A Deployment system |
| 05/09/1986 | WO1986002696A1 Marine riser well control method and apparatus |
| 05/07/1986 | EP0180390A2 Plug container |
| 05/06/1986 | US4587283 Cement slurries for deep holes, with a copolymer content for reducing the water loss |
| 05/06/1986 | US4586567 Subterranean well tool with pressure-equalizing release |
| 05/06/1986 | US4586526 Arrangement for controlling communication between a tubular member and an inflatable element supported on the tubular member in a well bore |
| 04/29/1986 | US4585158 Method of welding using preheating insert for heavy wall pipe |
| 04/29/1986 | CA1203751A1 Mechanical wireline borehole packer |
| 04/23/1986 | EP0178835A2 Deployment system |
| 04/22/1986 | US4583746 Method and apparatus for sealing between two concentric members |
| 04/22/1986 | US4583593 Hydraulically activated liner setting device |
| 04/22/1986 | US4583590 Slip releasing apparatus |
| 04/22/1986 | US4583569 Wireline blowout preventer |
| 04/22/1986 | CA1203471A1 Flow diverter |
| 04/16/1986 | EP0177623A1 Method and apparatus for the establishment of, in particular, water producing drilled wells |
| 04/16/1986 | EP0046795B1 A low torque pack-off seal assembly with retrievable lower section |
| 04/15/1986 | US4582349 Plastically deformed seals in downhole tools |
| 04/15/1986 | US4582293 Hydraulically operated valves |
| 04/15/1986 | US4582135 Well packers |
| 04/15/1986 | US4582134 Well packer |
| 04/15/1986 | US4582132 Wellhead expansion assembly |
| 04/15/1986 | CA1203178A1 Device with hose, especially for expandable blowout preventer |
| 04/15/1986 | CA1203162A1 Method and apparatus for rotating and reciprocating well bore liner |
| 04/15/1986 | CA1203161A1 Retrievable inside blowout preventer valve apparatus |
| 04/15/1986 | CA1203160A1 Ram-type blowout preventer |
| 04/15/1986 | CA1203159A1 Ram-type blowout preventer |
| 04/08/1986 | US4580926 Foundation level and orientation tool |
| 04/08/1986 | US4580632 Well tool for testing or treating a well |
| 04/08/1986 | US4580630 Mudline casing hanger assembly |
| 04/08/1986 | US4580629 Method and apparatus for water flow stimulation in a well |
| 04/08/1986 | US4580628 Blowout preventer stacks and method of tensioning stack tie rods |
| 04/08/1986 | US4580626 Blowout preventers having shear rams |
| 04/08/1986 | CA1202890A1 Sandwich shaped piston seal |
| 04/08/1986 | CA1202889A1 Circular seal with integral backup rings |
| 04/08/1986 | CA1202888A1 Mudline casing hanger assembly |
| 04/08/1986 | CA1202886A1 Seal for an underwater connector |
| 04/08/1986 | CA1202885A1 Subsea wellhead system |
| 04/08/1986 | CA1202863A1 Flow control apparatus and method |
| 04/01/1986 | US4579350 Packless stuffing box for polish rods |
| 04/01/1986 | US4579314 Annular blowout preventer |
| 04/01/1986 | US4579176 Prevention of dissolution of sand or silicon compounds by salt formation with an aluminum compound |
| 04/01/1986 | CA1202564A1 Hydraulic running and setting tool for well packers |
| 03/27/1986 | WO1986001853A1 Oilfield closing device operating system |
| 03/27/1986 | WO1986001852A1 Underwater well equipment |
| 03/25/1986 | US4577696 Sequential inflatable packer |
| 03/25/1986 | US4577695 Sequential inflatable packer |
| 03/25/1986 | US4577693 Wireline apparatus |
| 03/25/1986 | US4577689 Method for determining true fracture pressure |
| 03/25/1986 | US4577687 Cable head catcher mechanism |
| 03/25/1986 | US4577686 Mudline support hanger assembly |
| 03/25/1986 | US4577614 Blowout preventor apparatus |
| 03/19/1986 | EP0174869A2 Jacquard fluid controller |