| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 07/08/1980 | US4211625 Impressed current cathodic protection system for submersible downhole pumping assembly |
| 07/01/1980 | US4210213 Kelly bushing guard |
| 07/01/1980 | US4209891 Apparatus and method for positioning one part relative to another part |
| 06/17/1980 | US4208285 Drill cuttings disposal system with good environmental and ecological properties |
| 06/17/1980 | US4208195 Device for dispersing a residual gas comprising a plurality of injection nozzles |
| 06/17/1980 | CA1079526A1 Organic amine process for sulfur removal from circulating oil used in sour gas wells |
| 06/10/1980 | US4207036 Subsurface pumping installation for handling viscous or sand-laden fluids |
| 06/03/1980 | CA1078599A1 Calcite control in an in situ leach operation |
| 05/27/1980 | US4205379 Position determining and dynamic positioning method and system for floating marine well drill platforms and the like |
| 05/27/1980 | CA1078112A1 Method and apparatus for erecting a bridge structure |
| 05/13/1980 | US4202427 Derrick escape system |
| 04/29/1980 | US4200152 Method for enhancing simultaneous fracturing in the creation of a geothermal reservoir |
| 04/15/1980 | US4197910 Jet device for use in wells |
| 04/08/1980 | US4196933 Safety wall cutting through method employed in long wall mining |
| 04/03/1980 | WO1980000590A1 Improved method of servicing wellbores |
| 04/01/1980 | CA1074695A1 Method and apparatus for recovering metal values from mineral ores by in-situ mining |
| 03/25/1980 | US4194857 Subsea station |
| 03/11/1980 | US4192383 Offshore multiple well drilling and production apparatus |
| 03/11/1980 | CA1073347A1 Method of completion of offshore oil wells and start up structure therefor |
| 03/11/1980 | CA1073224A1 Blow-out cover dome |
| 03/04/1980 | CA1072879A1 Process for water treatment in mobility controlled caustic flooding process |
| 02/26/1980 | US4190120 Moveable guide structure for a sub-sea drilling template |
| 02/12/1980 | US4188068 Apparatus for mixing gas and liquid at a downhole location |
| 02/12/1980 | CA1071533A1 Completing wells in deep reservoirs containing fluids that are hot and corrosive |
| 02/05/1980 | CA1070966A1 Subsea station |
| 01/22/1980 | US4184838 Igniter for oil and/or gas well drilling operation |
| 01/22/1980 | US4184545 Measuring and transmitting apparatus for use in a drill string |
| 12/18/1979 | CA1068253A1 Drilling shock sub |
| 12/11/1979 | CA1067820A1 Combination subsurface safety valve and chemical injector valve |
| 11/27/1979 | US4175626 Fluid-jet drill |
| 11/14/1979 | EP0005273A1 Apparatus and method for removing hydrocarbons from drill cuttings |
| 11/13/1979 | US4174011 Subsea drilling template with carousel guidance system |
| 11/13/1979 | US4173804 Floating installation connected to a stationary underwater installation through at least one flexible pipe |
| 11/06/1979 | CA1065624A1 Off-shore oil field production equipment |
| 10/16/1979 | US4171019 Apparatus and method for re-entering and cementing an underwater well |
| 10/09/1979 | US4170532 For underground metallic structures |
| 10/02/1979 | US4169483 Hydraulic jet drill stem and bit unplugging device |
| 09/11/1979 | US4167215 Guidelineless subsea wellhead entry/reentry system |
| 09/04/1979 | CA1061714A1 Method for selectively retrieving a plurality of well packers |
| 08/28/1979 | US4165738 Life support system for drilling rigs |
| 08/14/1979 | US4164257 Internal protection of well casing |
| 08/14/1979 | US4164195 Immersion apparatus carrying detachable and self-contained prospecting and submarine work units |
| 07/24/1979 | USRE30055 Apparatus for transmitting well bore data |
| 07/24/1979 | CA1059019A1 Crude oil burner |
| 07/03/1979 | US4160063 Method for preventing the adherence of oil to surfaces |
| 07/03/1979 | US4160060 Platform safety barrier |
| 06/26/1979 | US4159135 Flange protector |
| 06/26/1979 | CA1057186A1 Gas flare system for use in a body of water |
| 06/12/1979 | US4157732 Method and apparatus for well completion |
| 05/29/1979 | CA1055243A1 Fracturing subterranean formation |
| 05/15/1979 | US4154660 Ion selective electrodes, measuring electrochemical potentials |
| 05/15/1979 | US4154659 Ionic selective electrodes to ionic concentration, determining ion ratio |
| 05/08/1979 | CA1054268A1 Treatment of oil drilling effluents_ |
| 05/01/1979 | US4152088 Off-shore oil field production equipment |
| 05/01/1979 | US4151881 Apparatus for completing a well |
| 05/01/1979 | US4151875 EZ disposal packer |
| 04/17/1979 | US4149818 Submersible chamber arrangement |
| 04/03/1979 | US4147495 Waste gas dispersion stack |
| 04/03/1979 | US4147212 Control of hydrogen sulfide gas to reduce toxicity and corrosion due to exposures thereto |
| 04/03/1979 | CA1051678A1 Regeneration of boring sludges_ |
| 03/27/1979 | US4145987 Flare buoy |
| 03/06/1979 | US4142820 Pivotal connecting device for pivotally connecting an off-shore articulated column structure to a sea bottom |
| 02/27/1979 | US4141668 Method and apparatus for erecting a bridge structure |
| 02/13/1979 | US4139462 Method for thermally treating oil well drill cuttings |
| 02/13/1979 | US4139322 Equipment for removing and refitting resilient packing in a cardan joint |
| 02/06/1979 | US4138148 Split-ring riser latch |
| 01/30/1979 | CA1047243A1 Porous fe304 drilling mud additive |
| 01/16/1979 | US4134456 Sub-sea well heads |
| 01/11/1979 | WO1979000016A1 Process for erecting a flame supporting structure on an oil extracting platform |
| 01/02/1979 | US4132625 Sewage osmosis system |
| 01/02/1979 | US4132270 Method for protection of well equipment from particles of debris |
| 01/02/1979 | US4132269 Generation of electricity during the injection of a dense fluid into a subterranean formation |
| 01/02/1979 | US4132268 Method for insuring oil well treatment on a regular basis as scheduled |
| 12/26/1978 | CA1045022A1 Baffle |
| 11/28/1978 | US4127003 Production equipment for oil-fields at sea |
| 11/14/1978 | US4125361 Baffle |
| 10/31/1978 | CA1041420A1 Linking of a subsea well to a flexible conduit |
| 10/17/1978 | US4120362 Subsea station |
| 10/17/1978 | US4120171 Apparatus and method of connecting a flexible line to a subsea station |
| 10/10/1978 | US4119145 Column structure enabling handling appliances on the seabed, particularly for the assembly and maintenance of well-heads |
| 10/03/1978 | US4117688 Apparatus for working under water |
| 09/19/1978 | US4114701 Drill rod table bushing arrangement |
| 09/19/1978 | US4114691 Method for controlling sand in thermal recovery of oil from tar sands |
| 09/19/1978 | US4114687 Systems for producing bitumen from tar sands |
| 09/12/1978 | US4113085 Sealing arrangements for use under water |
| 09/05/1978 | CA1037862A1 System and apparatus for extracting oil and the like from tar sands in situ |
| 08/29/1978 | US4109715 System and apparatus for extracting oil and the like from tar sands in situ |
| 08/22/1978 | US4108318 Apparatus for offshore handling and running of a BOP stack |
| 08/08/1978 | US4105068 Apparatus for producing oil and gas offshore |
| 08/01/1978 | US4103963 Sodium hexametaphosphate |
| 08/01/1978 | US4103743 Method and means of treating water wells |
| 08/01/1978 | US4103707 Device for dispersing exhaust gases |
| 07/11/1978 | CA1034487A1 Method for branching a submarine well to a steel tube discharge conduit |
| 07/04/1978 | US4098088 Work arm system for submergible chamber |
| 07/04/1978 | CA1034037A1 Method of joining a central station to a well system and transfer ducts |
| 06/20/1978 | US4095649 Reentry system for subsea well apparatus |
| 06/13/1978 | US4094159 Submersible chamber |
| 06/06/1978 | US4092908 Fluidic seal |
| 05/30/1978 | CA1031971A1 Optimised installation of the dispersion of waste gases |
| 05/23/1978 | US4090366 Transit capsules |