Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
11/1979
11/13/1979US4174011 Subsea drilling template with carousel guidance system
11/13/1979US4173804 Floating installation connected to a stationary underwater installation through at least one flexible pipe
11/13/1979CA1066184A1 Mining oil sand by induction heating
11/13/1979CA1066132A1 Well head gas counter balanced and operated actuator for oil well pumps
11/13/1979CA1066041A1 Flooding with micellar systems to solubilize equal volumes of hydrocarbon and water
11/06/1979US4173255 Low well yield control system and method
11/06/1979CA1065758A1 Method of recovering viscous petroleum from thick tar sand
11/06/1979CA1065757A1 Recovery of oil and gases from carbonaceous minerals, like oil sands and oil shales
11/06/1979CA1065624A1 Off-shore oil field production equipment
10/1979
10/31/1979EP0005030A2 Low calcium xanthan gums
10/30/1979US4172421 Fluid desensitized safe/arm detonator assembly
10/30/1979CA1065248A1 Oil recovery fluids selected using nuclear magnetic resonance measurements
10/30/1979CA1065246A1 Apparatus and method for well repair operations
10/23/1979US4172041 Composition for acidizing subterranean formations
10/23/1979US4171922 Process for positioning and joining ducts of a block
10/23/1979US4171674 Fairing for pipes
10/23/1979CA1064820A1 Processes for producing bitumen from tar sands and methods for forming a gravel pack in tar sands
10/23/1979CA1064819A1 Steam injection apparatus and method
10/23/1979CA1064818A1 Miscible drive in heterogeneous reservoirs
10/23/1979CA1064816A1 In situ leaching process for recovering uranium values
10/17/1979EP0004692A2 Method for forming channels of high fluid conductivity in formation parts around a borehole
10/16/1979US4171187 Air injection sub
10/16/1979US4171146 Combustion, leaching, heat exchanging
10/16/1979US4171018 Tubing hanger assembly and method of landing and locking
10/16/1979US4171017 Method of gas production from geopressurized geothermal brines
10/16/1979US4171016 Water removal system for gas wells
10/16/1979CA1064334A1 Floating island for extracting or processing gas
10/09/1979US4170266 Apparatus and method for offshore drilling at great depths
10/09/1979CA1063929A1 Multiple zone preparation of oil shale retort
10/09/1979CA1063928A1 Process for plugging permeable earth formations with wax
10/02/1979US4169797 Cellulose ether, compound of a polyvalent metal capable of reduction causing gelation
10/02/1979US4169506 In situ retorting of oil shale and energy recovery
10/02/1979US4169503 Apparatus for generating a shock wave in a well hole
10/02/1979CA1063367A1 Oil blowout retaining device
09/1979
09/25/1979US4168752 Flexible conduit for effecting lateral channelling in coal or oil shale beds
09/25/1979US4168746 Single well surfactant test to evaluate surfactant floods using multi tracer method
09/25/1979CA1232197B Apparatus and method for in situ heat processing of hydrocarbonaceous formations
09/25/1979CA1063017A1 Riser set-aside system
09/25/1979CA1063016A1 Apparatus and method for in situ heat processing of hydro-carbonaceous formations
09/25/1979CA1063015A1 Secondary recovery of oil by steam stimulation plus the production of electrical energy and mechanical power
09/25/1979CA1063014A1 Method of injecting fluids into underground formations
09/25/1979CA1063012A2 Method of recovery of tar sands material
09/25/1979CA1063011A2 Method of recovery of tar sands material
09/25/1979CA1063010A1 Control system for oilwell pumping installation
09/25/1979CA1062924A1 Method of and device for forming a fluidtight duct transition through a wall
09/20/1979WO1979000701A1 Improved petroleum sulfonates
09/18/1979US4167972 Well screen mounting arrangement
09/18/1979US4167971 Hanger apparatus for suspending pipes
09/18/1979US4167970 Hanger apparatus for suspending pipes
09/11/1979US4167292 Method of using a low temperature freezing softening and abrasion fluid
09/11/1979US4167291 Method of forming an in situ oil shale retort with void volume as function of kerogen content of formation within retort site
09/11/1979US4167213 Method for determining the position and inclination of a flame front during in situ combustion of a rubbled oil shale retort
09/11/1979CA1062152A1 Apparatus for cryothermal fracturing of rock formations
09/11/1979CA1061997A1 Composition containing a polyvinylpyrrolidone and method for stimulating well production
09/11/1979CA1061996A1 Method for removing elemental sulfur in sour gas wells
09/04/1979US4166721 Monitoring concentration of component at selected locations
09/04/1979US4166504 High vertical conformance steam drive oil recovery method
09/04/1979US4166503 High vertical conformance steam drive oil recovery method
09/04/1979US4166502 High vertical conformance steam drive oil recovery method
09/04/1979US4166501 High vertical conformance steam drive oil recovery method
09/04/1979CA1061772A1 Method and means for effecting lateral channelling in coal or oil shale beds
09/04/1979CA1061713A1 Recovering bitumen from subterranean formations
09/04/1979CA1061712A1 In situ recovery of shale oil
09/04/1979CA1061711A1 In situ processing of oil shale
09/04/1979CA1061710A1 Method and system for recovering subsurface earth substances
09/04/1979CA1061709A1 Subterranean mining apparatus and method
09/04/1979CA1061708A1 Aquifer-plugging steam soak for layered reservoir
09/04/1979CA1061532A1 Method for recovering high asphaltene content petroleum using surfactants
08/1979
08/28/1979US4165784 Casing perforator
08/28/1979CA1061249A1 Subterranean drilling and slurry mining
08/28/1979CA1061248A1 Selective firing system
08/28/1979CA1061247A1 Treating subterranean formations with resin coated particles
08/21/1979US4164979 Reservoir stabilization by treating water sensitive clays
08/21/1979US4164978 Oil extraction method
08/21/1979US4164886 Sealing projectile
08/21/1979CA1060788A1 Fire flood process
08/21/1979CA1060787A1 Coal or lignite field development by underground high pressure gasification
08/21/1979CA1060786A1 Arrangement for recovering viscous petroleum from thick tar sand
08/21/1979CA1060785A1 Recovery of oil by a vertical miscible flood
08/21/1979CA1060784A1 Method of in situ recovery of viscous oils and bitumens
08/21/1979CA1060783A1 Multiple level preparation of oil shale retort
08/21/1979CA1060780A2 Selective firing system
08/21/1979CA1060640A1 Methods and compositions for treating low temperature subterranean well formations
08/14/1979USRE30070 Apparatus for treating wells
08/14/1979CA1060341A1 System for recovering viscous petroleum from thick tar sand
08/14/1979CA1060340A1 Method of recovering viscous petroleum from tar sand
08/14/1979CA1060339A1 Recovering viscous petroleum from thick tar sand
08/07/1979US4163580 Pressure swing recovery system for mineral deposits
08/07/1979US4163476 Secondary recovery process utilizing an acrylamido alkanesulfonic acid polymer
08/07/1979US4163475 Determining the locus of a processing zone in an in situ oil shale retort
08/07/1979CA1059898A1 Mechanically set liner hanger and running tool with backup mechanical setting means
08/07/1979CA1059897A1 Mechanically set liner hanger and running tool
08/07/1979CA1059896A1 Method for recovering viscous petroleum
08/07/1979CA1059841A1 Fairing for pipes
08/07/1979CA1059746A2 Water loss reduction agents
08/07/1979CA1059745A1 Water loss reduction agents
08/07/1979CA1059744A1 Paraffin removal
07/1979
07/31/1979US4162808 In-situ retorting of carbonaceous deposits
07/31/1979US4162707 With a halogenated restoration fluid
07/31/1979US4162706 Determining the locus of a processing zone in an oil shale retort by monitoring pressure drop across the retort
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