| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 04/23/1986 | EP0178962A1 Method and apparatus for the compression and transportation of a gas comprising a liquid fraction |
| 04/22/1986 | US4584358 Calcium-tolerant N-substituted acrylamides as thickeners for aqueous systems |
| 04/22/1986 | US4584002 Recirculating foam generator |
| 04/22/1986 | US4583784 Mining of minerals |
| 04/22/1986 | US4583602 Shaped charge perforating device |
| 04/22/1986 | US4583593 Hydraulically activated liner setting device |
| 04/22/1986 | US4583589 Subsurface radiating dipole |
| 04/22/1986 | CA1203470A1 Apparatus for operating a gas and oil producing well |
| 04/16/1986 | EP0177623A1 Method and apparatus for the establishment of, in particular, water producing drilled wells |
| 04/16/1986 | EP0177509A1 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content |
| 04/15/1986 | US4583170 Portable oilfield fluid management system and method |
| 04/15/1986 | US4582611 Soil decontamination with wick drains |
| 04/15/1986 | US4582452 Acrylamide, unsaturated sulfonates and carbonoxylic acids and salts copolymer; thiourea, sodium sulfite or sodium thiosulfate reducing agents |
| 04/15/1986 | EP0160032A4 Method and apparatus for separating gases and liquids from well-head gases. |
| 04/15/1986 | CA1203162A1 Method and apparatus for rotating and reciprocating well bore liner |
| 04/15/1986 | CA1203158A1 Vacuum insulated steam injection tubing |
| 04/15/1986 | CA1203144A1 Telescoping boom supported clustered service line |
| 04/09/1986 | EP0177324A2 Enhanced hydrocarbon recovery by permeability modification with phenolic gels |
| 04/09/1986 | EP0177135A2 Method of gravel packing a well |
| 04/09/1986 | EP0177098A2 Surfactant composition and process for the production of oil using such a composition |
| 04/08/1986 | US4581613 Submersible pump telemetry system |
| 04/08/1986 | US4581253 Sand coated with melted thermosetting resin; mixing before and during curing |
| 04/08/1986 | US4580955 Eccentric screw pump for the conveying of liquids from bore holes |
| 04/08/1986 | US4580926 Foundation level and orientation tool |
| 04/08/1986 | US4580636 Flow line pull in tool |
| 04/08/1986 | US4580634 Method and apparatus for distributing fluids within a subterranean wellbore |
| 04/08/1986 | US4580633 Increasing the flow of fluids through a permeable formation |
| 04/08/1986 | US4580631 Support apparatus for use in a well |
| 04/08/1986 | US4580629 Method and apparatus for water flow stimulation in a well |
| 04/08/1986 | US4580504 Method and apparatus for the recovery of hydrocarbons |
| 04/08/1986 | CA1202891A1 Method of limiting sand production in wells |
| 04/08/1986 | CA1202887A1 Setting tool |
| 04/08/1986 | CA1202884A1 Method for maximum in-situ visbreaking of heavy oil |
| 04/08/1986 | CA1202883A1 Thermal recovery method for optimum in-situ visbreaking of heavy oil |
| 04/08/1986 | CA1202882A1 Method of removing gas from an underground seam |
| 04/08/1986 | CA1202881A1 Solvent flooding to recover viscous oils |
| 04/01/1986 | US4579565 Heating, valve, mixing, high pressure separation, and gas compression means |
| 04/01/1986 | US4579511 Air lift pump system |
| 04/01/1986 | US4579480 Remotely controllable handling device for submerged structures, particularly for connecting underwater pipes |
| 04/01/1986 | US4579391 Drilling holes, insertion conductive devices, forming bath of melted material, and separation |
| 04/01/1986 | US4579372 Flowline connector seal |
| 04/01/1986 | US4579176 Prevention of dissolution of sand or silicon compounds by salt formation with an aluminum compound |
| 04/01/1986 | US4579175 Method of reducing water production |
| 04/01/1986 | US4579173 Magnetized drive fluids |
| 04/01/1986 | CA1202561A1 Oil recovery process |
| 04/01/1986 | CA1202559A1 Single-wire selective perforation system |
| 04/01/1986 | CA1202558A1 Perforating gun carrier and method of making |
| 04/01/1986 | CA1202557A1 Continuous flow perforation washing tool and method |
| 03/26/1986 | EP0175439A2 Shaped charge carrier assembly |
| 03/25/1986 | US4577908 Method for in situ shale oil recovery |
| 03/25/1986 | US4577691 Method and apparatus for producing viscous hydrocarbons from a subterranean formation |
| 03/25/1986 | US4577690 Method of using seismic data to monitor firefloods |
| 03/25/1986 | US4577688 Anionic ourfactants |
| 03/18/1986 | US4576236 Perforation and isolation apparatus |
| 03/18/1986 | US4576233 Method of backsurging a well |
| 03/18/1986 | US4576231 Method and apparatus for combating encroachment by in situ treated formations |
| 03/18/1986 | US4576041 Dynamic balancing means for an oil well pumping unit |
| 03/18/1986 | US4576005 Wellhead gas treatment and co-generation method and system |
| 03/18/1986 | CA1202147A1 Injection water viscosifier for enhanced oil recovery |
| 03/18/1986 | CA1201973A1 Apparatus and method for attaching a template at a subsea production site |
| 03/18/1986 | CA1201971A1 Apparatus for passing electrical current through an underground formation |
| 03/18/1986 | CA1201970A1 Method for removing undesired components from the soil |
| 03/11/1986 | US4575155 Pressure differential mining tool |
| 03/11/1986 | US4575154 Recovering uranium from subterranean deposits, ion exchanging |
| 03/11/1986 | US4574892 Tubing conveyed perforating gun electrical detonator |
| 03/11/1986 | US4574886 Combustion of hydrocarbon fuel in water emulsion, metal halide and diammonium phosphate |
| 03/11/1986 | US4574884 Drainhole and downhole hot fluid generation oil recovery method |
| 03/11/1986 | US4574880 For the metering/injection of tracer materials into fluids |
| 03/05/1986 | EP0173667A1 Process for recovering gases from landfills |
| 03/05/1986 | EP0172971A1 Production of hydrocarbon formations with reinjection of effluents into the formation |
| 03/04/1986 | US4573911 Heater treater economizer system |
| 03/04/1986 | US4573541 Multi-drain drilling and petroleum production start-up device |
| 03/04/1986 | US4573540 Method for drilling deviated wellbores |
| 03/04/1986 | US4573531 Drilling and inter connecting wells |
| 03/04/1986 | US4573530 Saturation with combustible gas, reinitiating combustion and injecting oxygen containing gas and steam |
| 03/04/1986 | US4573529 High flow injection anchor |
| 03/04/1986 | CA1201377A1 Advancing heated annulus steam drive |
| 03/04/1986 | CA1201376A1 Bar actuated vent assembly |
| 02/27/1986 | WO1986001147A1 Hollow microspheres made from dispersed particle compositions and methods and apparatus for producing them |
| 02/25/1986 | US4572582 Earth battery using veined material such as coal as first electrode, and placing second electrode in metal to be mined |
| 02/25/1986 | US4572581 In-situ recovery of mineral values |
| 02/25/1986 | US4572296 Inhibiting silica dissolution by adding ammonium compound as acid neutralizer or buffer |
| 02/25/1986 | US4572294 Enhanced oil recovery |
| 02/25/1986 | US4572288 Time-delayed ignition system for a down-hole explosive tool |
| 02/25/1986 | CA1201062A1 Pipe base well screen and system for joining a plurality of well screen segments |
| 02/25/1986 | CA1201060A1 Riser support system |
| 02/25/1986 | CA1201059A1 Method for consolidating formation surrounding borehole |
| 02/25/1986 | CA1201058A1 Actuation of a gun firing head |
| 02/19/1986 | EP0171406A1 A submersible liquid/gas separator apparatus |
| 02/18/1986 | US4570716 System and apparatus of liason between an underwater wellhead and a surface support |
| 02/18/1986 | US4570714 Gravel pack assembly |
| 02/18/1986 | US4570712 Carbon dioxide and hydrocarbon solvent flooding in a steeply dipping reservoir |
| 02/18/1986 | US4570711 Process for optimizing the noncondensible gas content of an oil-displacing steam-foam-forming mixture |
| 02/18/1986 | US4570710 Method for preventing wellbore damage due to fines migration |
| 02/18/1986 | US4570707 Releasable latch for downhole well tools |
| 02/18/1986 | US4570673 Fluid flow delivery system |
| 02/18/1986 | US4570656 Forming oil in water emulsion by adding a and dilvent |
| 02/18/1986 | CA1200827A1 Conduit tube of an electrode device for electrically heating underground hydrocarbon resources |
| 02/18/1986 | CA1200757A1 Back pressure valve for chemical injection line |
| 02/11/1986 | US4569763 Wire locking structure for a filter device |