| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 01/15/1985 | CA1181001A1 Production casing tieback connector assembly |
| 01/09/1985 | EP0130713A2 Multihardness connector and method for manufacturing the same |
| 01/08/1985 | US4492383 Inflatable well bore packer with pressure equalized rib cavity |
| 01/08/1985 | US4492359 Valve assembly |
| 01/02/1985 | CA1180271A Method and apparatus for placing a cement thermal packer |
| 01/02/1985 | CA1180270A Permanent thermal packer |
| 01/02/1985 | CA1180269A Frangible cup thermal packer assembly for cased wells |
| 01/02/1985 | CA1180268A Seal assembly |
| 01/02/1985 | CA1180267A Geothermal well head |
| 01/02/1985 | CA1180266A Foam and particulate material with steam for permeability alteration in subsurface formations |
| 01/01/1985 | US4491346 Apparatus for releasably connecting tubular members in end-to-end relation |
| 01/01/1985 | US4491345 Marine conductor coupling |
| 01/01/1985 | US4491178 Through tubing bridge plug |
| 01/01/1985 | US4491177 Ball dropping assembly |
| 01/01/1985 | US4491176 Electric power supplying well head assembly |
| 12/27/1984 | CA1179938A Dome-type packoff wellhead |
| 12/25/1984 | US4489959 Underwater connector |
| 12/25/1984 | US4489784 Well control method using low-melting alloy metals |
| 12/25/1984 | US4489780 Wellhead lubricator |
| 12/25/1984 | US4489472 Connection-disconnection device between one rigid pipe, inside well-tubing connected to a base by an articulated coupling, and another rigid pipe fixed to this base |
| 12/19/1984 | EP0128206A1 Flow diverter. |
| 12/18/1984 | US4488740 Breech block hanger support |
| 12/18/1984 | US4488703 Valve apparatus |
| 12/18/1984 | US4488595 Well tool having a slip assembly |
| 12/18/1984 | CA1179597A1 Wellhead connector with check valve |
| 12/18/1984 | CA1179596A1 Geothermal wellhead packing assembly |
| 12/11/1984 | US4487527 Subsea wellhead assembly |
| 12/11/1984 | US4487263 Cement staging apparatus for wells and including well casing and a process therefor |
| 12/11/1984 | US4487261 Well completion and testing system |
| 12/11/1984 | US4487258 Hydraulically set well packer |
| 12/11/1984 | CA1179255A1 Heat resistant sealing assembly |
| 12/11/1984 | CA1179254A1 Subsea caisson |
| 12/11/1984 | CA1179253A1 Ram-type blowout preventer |
| 12/04/1984 | US4486025 Stripper packer |
| 12/04/1984 | US4485876 Method of controlling fluid pressure |
| 11/27/1984 | US4484633 Safety joint |
| 11/27/1984 | US4484626 Pneumatic packer |
| 11/27/1984 | US4484625 Well casing perforated zone washing apparatus |
| 11/27/1984 | CA1178534A1 Slack adjustment for slip system in downhole well apparatus |
| 11/27/1984 | CA1178533A1 Apparatus for forcing tubular elements into and out of boreholes |
| 11/27/1984 | CA1178532A1 Method of preventing muddy water loss in boring hole in ground |
| 11/27/1984 | CA1178531A1 Pressure actuated vent assembly for slanted wellbores |
| 11/20/1984 | US4483545 Fire resistant connections and double ribbed sealing means therefor |
| 11/20/1984 | CA1178196A1 Well blowout preventer, and packing element |
| 11/13/1984 | US4482086 Expandable packer assembly for sealing a well screen to a casing |
| 11/13/1984 | US4482013 Mechanical wireline borehole packer |
| 11/13/1984 | CA1177762A1 Inflatable packers |
| 11/07/1984 | EP0124304A1 Tubular joint |
| 11/06/1984 | US4480944 Offshore drilling of large diameter holes in rock formations |
| 11/06/1984 | US4480843 Polymeric annular snubbing apparatus |
| 11/06/1984 | US4480842 Self-aligning stuffing box |
| 11/06/1984 | US4480703 Drilling head |
| 11/06/1984 | US4480690 Accelerated downhole pressure testing |
| 11/06/1984 | US4480688 Method and bridge plug for sealing off a well |
| 11/06/1984 | CA1177390A1 Method and apparatus for completing diverless subsea large diameter flowline connections |
| 11/06/1984 | CA1177389A1 Releasable latching apparatus |
| 10/30/1984 | US4479545 Well-cementing stage collar |
| 10/30/1984 | US4479544 Pressure actuated pack-off and method |
| 10/30/1984 | US4479537 Power tubing hanger and tubing string lifting assembly |
| 10/30/1984 | CA1177059A1 Tool forming a hole in macroporous compressible soil and a method of forming a hole by the same tool |
| 10/30/1984 | CA1176977A1 Inflatable flowing hole plug |
| 10/30/1984 | CA1176976A1 Non-extruding inflatable packer assembly |
| 10/30/1984 | CA1176974A1 High pressure wellhead seal |
| 10/25/1984 | WO1984004130A1 Annular packing unit and insert |
| 10/24/1984 | EP0122708A2 Annular blowout preventer |
| 10/24/1984 | EP0122259A1 Pipe string tie-back connector |
| 10/23/1984 | US4478287 For use with a floating drilling vessel |
| 10/23/1984 | US4478279 Retrievable inside blowout preventer valve apparatus |
| 10/16/1984 | US4477104 Releasable latching apparatus |
| 10/16/1984 | US4477093 Fire resistant connections and T-like sealing means therefor |
| 10/16/1984 | US4477092 Fire resistant connections and dovetail-like sealing means therefor |
| 10/16/1984 | US4477091 Fire resistant connections and U-like sealing means therefor |
| 10/16/1984 | US4477085 Fire resistant connections embodying heat transfer means |
| 10/16/1984 | US4476936 Jacking mechanism supported by a wellhead |
| 10/16/1984 | US4476935 Safety valve apparatus and method |
| 10/16/1984 | US4476933 Lubricator valve apparatus |
| 10/16/1984 | US4476924 For use with a wireline extending into a well for trapping gas in the well |
| 10/16/1984 | CA1176154A1 Method for preventing annular fluid flow |
| 10/11/1984 | WO1984003910A1 Composition for blowout preventer |
| 10/09/1984 | US4475847 Process for consolidation and sealing of geological formations and artificial beds of rock, earth, and coal |
| 10/09/1984 | US4475600 Subsea well completion apparatus |
| 10/09/1984 | US4475591 Method for completing and monitoring a well |
| 10/02/1984 | US4474409 Method of enhancing the removal of methane gas and associated fluids from mine boreholes |
| 10/02/1984 | US4474381 Metal pipe joint seal ring with port to control erosion |
| 10/02/1984 | US4474380 Inflatable packer assembly with control valve |
| 10/02/1984 | US4474249 Kelly seal |
| 10/02/1984 | US4474243 for use in conducting offshore drilling operations |
| 10/02/1984 | US4474236 Method and apparatus for remote installations of dual tubing strings in a subsea well |
| 10/02/1984 | CA1175463A1 Tubular connector |
| 09/25/1984 | US4473230 Tension hanger embodying fire resistant sealing means |
| 09/25/1984 | CA1174966A1 Packing assembly |
| 09/25/1984 | CA1174864A1 Method of pressurizing and stabilizing rock by periodic and repeated injections of a settable fluid of finite gel strength |
| 09/19/1984 | EP0118994A1 Cementing tool for wells |
| 09/18/1984 | US4471965 High-pressure fire-resistant metal seal |
| 09/18/1984 | CA1174589A1 Method and apparatus for injecting fluid into a well |
| 09/12/1984 | EP0118018A1 Fire resistant connections and double ribbed sealing means therefor |
| 09/12/1984 | EP0117989A1 Fire resistant connections embodying heat transfer means |
| 09/11/1984 | US4470468 Offshore drilling of large diameter holes in rock formations |
| 09/11/1984 | US4470462 Foam and particulate material with steam for permeability alteration in subsurface formations |
| 09/11/1984 | US4470458 Well tool |