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)
12/1986
12/02/1986	CA1214768A1 Hydraulic piston-effect method and apparatus for forming a bore hole
12/02/1986	CA1214723A1 Device for repetitively connecting and separating an autonomous sumersible module fitted with a conduit that can be linked with a collector
12/02/1986	CA1214722A1 Thermal injection and in situ combustion process for heavy oils
12/02/1986	CA1214721A1 Submersible pump
12/02/1986	CA1214629A1 Method of altering the permeability of a subterranean formation
11/1986
11/26/1986	EP0202310A1 A method for establishing a connection from the sea bed to a tunnel positioned below
11/26/1986	EP0202221A1 Method and means to pump a well
11/25/1986	US4624626 Venturi odor dissipator
11/25/1986	US4624484 Shrink-fit connector for electrical well subsurface heating processes
11/25/1986	US4624328 In-shaft drilling apparatus for recovery of gas from subterranean formations
11/25/1986	US4624319 Method and apparatus to improve well water quality
11/25/1986	US4624311 Locking mechanism for hydraulic running tool for well hangers and the like
11/25/1986	US4624310 Well apparatus
11/25/1986	US4624307 Explosive perforating tool
11/25/1986	US4624306 Downhole mobility and propulsion apparatus
11/25/1986	CA1214387A1 Injection of steam and solvent for improved oil recovery
11/25/1986	CA1214386A1 Well completion method and apparatus
11/20/1986	EP0202029A1 Buoy having minimal motion characteristics
11/19/1986	CN86102048A Production of a polyacrylamide solution used in an oil recovery process
11/18/1986	USRE32289 Surfactants for oil recovery
11/18/1986	US4623630 Use of uncalcined/partially calcined ingredients in the manufacture of sintered pellets useful for gas and oil well proppants
11/18/1986	US4623305 Hydraulic screw machine
11/18/1986	US4623203 For supplying electrical power to a rotating structure
11/18/1986	US4623022 Well sand packing prevention method
11/18/1986	US4623021 Hydraulic fracturing method employing a fines control technique
11/12/1986	CA1213825A Combined thermal and solvent stimulation
11/12/1986	CA1213741A Method for providing a horizontal support area at a subsea production site
11/11/1986	US4621692 Enhanced oil recovery
11/11/1986	US4621691 Well drilling
11/11/1986	US4621689 Cable suspended submergible pumping system with safety valve
11/11/1986	US4621688 Clamping jaw device for well servicing machine
11/11/1986	US4621396 Manufacturing of shaped charge carriers
11/05/1986	EP0200453A1 Coupling device for submarine pipeline systems
11/05/1986	EP0200195A2 Thermal enhancement
11/04/1986	US4620818 Flowline connection means
11/04/1986	US4620597 High pressure injection valve
11/04/1986	US4620595 Recovering oil by injecting ammoniated and nitrited seawater
11/04/1986	US4620594 Vertical conformance steam drive oil recovery method
11/04/1986	US4620593 Oil recovery system and method
11/04/1986	US4620592 Progressive sequence for viscous oil recovery
11/04/1986	CA1213547A1 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ
11/04/1986	CA1213515A1 Method of reducing water production
10/1986
10/28/1986	US4619762 Devices for recovering polymetal compounds discharged from a submarine hydrothermal source
10/28/1986	US4619333 In a cased wellbore
10/28/1986	US4619326 In a well completion process
10/28/1986	US4619319 Packer and actuation portion of tubing conveyed completion system
10/28/1986	CA1213211A1 Method for the underground gasification of coal or browncoal
10/28/1986	CA1213210A1 Differential pressure actuated vent assembly
10/22/1986	EP0198357A2 Stabilized solutions of radiation-hardenable prepolymers of heat-resistant polymers
10/22/1986	CN85202728U Mining equipment for soluble mine with hose diverter
10/22/1986	CN85103185A Long stroke pumping unit
10/21/1986	US4617997 Foam enhancement of controlled pulse fracturing
10/21/1986	US4617996 Hydrocarbon additive to solvbilize displacement fluid; enhaced oil recovery
10/21/1986	US4617995 Electrolyte for ion exchanging with rocks
10/21/1986	US4617993 Pretreatment with solvent to dissolve high molecular weight crude oils
10/21/1986	US4617992 System and choke valve actuator mechanism for operating a plunger lift well
10/21/1986	US4617991 Polymer flow control apparatus
10/21/1986	CA1212898A1 Process and installation for in-situ gasification of coal
10/21/1986	CA1212897A1 Fitting for dual submersible pumps
10/15/1986	EP0197684A2 Reduction of water permeability of subterranean formation
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	US4617132 Antionic polymer as flow control agent
10/14/1986	US4617030 Methods and apparatus for separating gases and liquids from natural gas wellhead effluent
10/14/1986	US4616719 For overcoming a resistance to advance of a pipe string in a well bore
10/14/1986	US4616718 Firing head for a tubing conveyed perforating gun
10/14/1986	US4616701 Well perforating apparatus including an underbalancing valve
10/14/1986	US4616700 Automatic well test system and method
10/14/1986	CA1212533A1 Propping agent based on zirconia and silica for deep geological fractures
10/09/1986	WO1986005839A1 Water soluble perforation pack
10/08/1986	EP0196712A1 Device for connecting and disconnecting hoses or pipes to and from difficultly accessible structures
10/07/1986	US4615752 Methods of pumping and loading emulsion slurry blasting compositions
10/07/1986	US4615646 Flowline connection means
10/07/1986	US4615564 Foam process for recovering underground rock fragments
10/07/1986	US4615544 Subsea wellhead system
10/07/1986	US4615542 Telescopic riser joint
10/07/1986	US4615392 Recovering oil by injecting hot CO2 into a reservoir containing swelling clay
10/07/1986	US4615391 Using colloidally sized magnesium particles
10/07/1986	US4615390 System to control the combining of two fluids
10/07/1986	US4615389 Injecting water to redule salt concentration
10/07/1986	US4615388 Adding water to dilute salts
10/07/1986	US4615387 For inhibiting corrosion in wells
10/07/1986	CA1212312A1 Electronically controlled gas lift apparatus
10/07/1986	CA1212251A1 Weight type motion compensation system for a riser moored tanker
10/01/1986	EP0196199A2 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature
10/01/1986	EP0195840A1 Offshore structure incorporating a conductor deflecting system
09/1986
09/30/1986	US4614459 Floating tube apparatus for providing a sealed reversible and remote-controlled connection between ducts in particular underwater ducts
09/30/1986	US4614234 Method of recovering coal values by combining underground coal gasification with surface coal liquefaction
09/30/1986	US4614232 Device for delivering flowable material
09/30/1986	US4614156 Pressure responsive explosion initiator with time delay and method of use
09/23/1986	US4613394 Staged chemical pipe cutter
09/23/1986	US4613349 Fluid separator and flow stabilization structure
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	US4612992 Single trip completion of spaced formations
09/23/1986	US4612990 Method for diverting steam in thermal recovery process
09/23/1986	US4612989 Combined replacement drive process for oil recovery
09/23/1986	US4612988 Dual aquafer electrical heating of subsurface hydrocarbons
09/23/1986	CA1211704A1 Thermal oil recovery method
09/23/1986	CA1211703A1 In situ conversion of hydrocarbonaceous oil
09/23/1986	CA1211702A1 Method and system for producing natural gas from offshore wells
09/23/1986	CA1211622A1 Gelled acid compositions and methods for acidizing subterranean formations

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