| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 11/18/1986 | US4623283 Method for controlling water influx into underground cavities |
| 11/18/1986 | US4623020 Communication joint for use in a well |
| 11/12/1986 | EP0201283A1 Dual tool spider for pipes |
| 11/11/1986 | US4621567 Beam pump |
| 11/11/1986 | US4621403 Apparatus and method for inserting coiled tubing |
| 11/06/1986 | WO1986006436A1 Mechanical drive packer |
| 11/05/1986 | EP0200453A1 Coupling device for submarine pipeline systems |
| 10/29/1986 | EP0198853A1 Marine riser well control method and apparatus. |
| 10/28/1986 | US4619326 In a well completion process |
| 10/28/1986 | US4619324 Wellhead connector locking mechanism |
| 10/28/1986 | US4619321 Method and apparatus for treating down hole equipment from corrosion in production well |
| 10/28/1986 | US4619319 Packer and actuation portion of tubing conveyed completion system |
| 10/28/1986 | US4619111 Oilfield closing device operating system |
| 10/22/1986 | CN85203342U Packer being able to be used repeatedly in oil well |
| 10/21/1986 | US4618314 Fluid injection apparatus and method used between a blowout preventer and a choke manifold |
| 10/21/1986 | CA1212899A1 Shearing type blowout preventer |
| 10/15/1986 | EP0197609A2 Preventing fluid migration around a well casing |
| 10/15/1986 | EP0197566A1 Method for the controlled withdrawal of the injection point of gasification agents in the seam during the underground gasification of coal |
| 10/14/1986 | US4616987 Internal bore impression tool |
| 10/14/1986 | US4616706 Apparatus for performing subsea through-the-flowline operations |
| 10/14/1986 | CA1212623A1 Arrangement to prevent premature expansion of seal means |
| 10/08/1986 | EP0196796A2 Retrievable straddle packer |
| 10/08/1986 | EP0196557A1 Fluid-tight coupling device for two sections of a conduit |
| 10/08/1986 | CN85204194U Hydrolic thermal sealing device |
| 10/08/1986 | CN85203350U Oil production pipe blockup tool |
| 10/07/1986 | US4615544 Subsea wellhead system |
| 10/07/1986 | CA1212316A1 Packer assembly valve |
| 10/07/1986 | CA1212315A1 Well packer |
| 10/07/1986 | CA1212314A1 Fire resistant connections and u-like sealing means therefor |
| 10/01/1986 | CN86100473A Permeability contrast correction employing propionate-sequestered chromium prepared by nitrite/dichromate redox |
| 09/30/1986 | US4614346 Inflatable unitary packer element having elastic recovery |
| 09/30/1986 | US4614148 Control valve system for blowout preventers |
| 09/30/1986 | CA1212043A1 Safety shear apparatus and method for production wells |
| 09/30/1986 | CA1212042A1 Down hole blow out preventer and method of use |
| 09/24/1986 | EP0160023A4 Inflatable cartridge assembly. |
| 09/24/1986 | CN85203348U Air pressure auto-packer |
| 09/23/1986 | US4613164 Misalignment tieback tool - rotating casing |
| 09/23/1986 | US4613162 Misalignment tieback tool - non-rotating casing |
| 09/23/1986 | US4613161 Coupling device |
| 09/23/1986 | US4613160 Remotely operable pipe length connector and compensator |
| 09/23/1986 | US4613159 Pressure-assisted dynamic seal apparatus |
| 09/23/1986 | US4613140 Self-aligning lubricating stuffing box |
| 09/23/1986 | US4612994 Device for connecting a collecting head input to the well head output by means of a mobile connector connected to a looped duct |
| 09/23/1986 | US4612985 Seal assembly for well tools |
| 09/23/1986 | US4612984 Apparatus for the running and pulling of wire-line tools and the like in an oil or gas well |
| 09/23/1986 | CA1211706A1 Retrievable straddle packer |
| 09/16/1986 | US4611829 Misalignment tieback tool - swivel connection |
| 09/16/1986 | US4611663 Casing hanger and running apparatus |
| 09/16/1986 | US4611661 Retrievable exploration guide base/completion guide base system |
| 09/16/1986 | US4611658 High pressure retrievable gravel packing apparatus |
| 09/16/1986 | US4611657 Pitless adaptor by-pass |
| 09/12/1986 | WO1986005106A1 Method for suppressing oil well fires |
| 09/10/1986 | EP0193596A1 In situ waste impoundment treating apparatus and method of using same |
| 09/09/1986 | US4610300 Tubing actuated retrievable packer |
| 09/09/1986 | CA1211046A1 Inflatable packer |
| 09/09/1986 | CA1211045A1 Subsea wellhead connection assembly |
| 09/09/1986 | CA1211044A1 Ram-type blowout preventer and packer therefor |
| 09/03/1986 | EP0192768A1 Underwater well equipment |
| 09/02/1986 | US4609304 Apparatus for enabling a self-contained submersible module including a length of conduit for connection to a collector to be repetitively put into place and removed |
| 09/02/1986 | US4609046 Production riser foot and a process for implementing same |
| 09/02/1986 | US4609042 Inflatable safety bladder |
| 09/02/1986 | CA1210688A1 Bore hole plug |
| 08/27/1986 | EP0192400A2 Gravel-packing a well |
| 08/27/1986 | EP0192399A2 Well treatment apparatus |
| 08/27/1986 | EP0192398A2 Liner setting device for wells |
| 08/27/1986 | EP0121566B1 Retrievable inside blowout preventer valve apparatus |
| 08/26/1986 | US4607865 Connector, ratcheting type |
| 08/26/1986 | US4607701 In a subsea completion tree for the injection |
| 08/26/1986 | US4607698 Pipe configuration compatible with CBL |
| 08/26/1986 | US4607694 Well plug quality testing |
| 08/26/1986 | US4607691 Non-orienting, multiple ported, cylindrical pressure transfer device |
| 08/26/1986 | CA1210326A1 Offshore well head protector and method of installation |
| 08/26/1986 | CA1210325A1 Safety valve apparatus and method |
| 08/26/1986 | CA1210318A1 Well completion system and process |
| 08/19/1986 | US4606557 Subsea wellhead connector |
| 08/19/1986 | US4606410 Subsurface safety system |
| 08/19/1986 | US4606408 Method and apparatus for gravel-packing a well |
| 08/19/1986 | US4606406 For use in a wellbore |
| 08/13/1986 | EP0190529A1 Remotely controlled flow-responsive actuating device, in particular for actuating a stabilizer in a drill string |
| 08/12/1986 | US4605195 Annular blowout preventer packing unit |
| 08/12/1986 | US4605067 Method and apparatus for completing well |
| 08/12/1986 | US4605062 Tool for use in a well bore for producing hydrocarbons |
| 08/12/1986 | US4605061 Apparatus for plugging a wellbore in high impulse fracturing |
| 08/12/1986 | CA1209470A1 Packer for separation of zones in a well bore |
| 08/12/1986 | CA1209468A1 Annular packing unit and insert |
| 08/05/1986 | CA1209033A1 Plug for blasting hole |
| 08/05/1986 | CA1209032A1 Hydraulically operated valves |
| 07/29/1986 | US4602796 Well conduit joint sealing system |
| 07/29/1986 | US4602794 Annular blowout preventer with upper and lower spherical sealing surfaces and rigid translation element |
| 07/29/1986 | US4602684 Well cementing valve |
| 07/29/1986 | CA1208676A1 Coupling device |
| 07/29/1986 | CA1208545A1 Inflatable packer with pressure equalized rib cavity |
| 07/23/1986 | EP0187782A1 Borehole plug and method |
| 07/22/1986 | US4601608 Subsea hydraulic connection method and apparatus |
| 07/22/1986 | US4601494 Nipple insert |
| 07/22/1986 | US4601339 With pumpable gel mixture which solidifies |
| 07/22/1986 | US4601333 Thermal slide joint |
| 07/22/1986 | CA1208123A1 Wellhead sealing system |
| 07/16/1986 | EP0187599A1 Apparatus driven by hydraulic pressure for conducting logging and work-over operations in a deviated well during injection or production |
| 07/15/1986 | US4600339 Shield for protecting a well head and functional modules of an under sea station |