| 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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| 04/24/1984 | US4444264 Method of using a diverting material for well treatment |
| 04/24/1984 | US4444261 High sweep efficiency steam drive oil recovery method |
| 04/24/1984 | US4444260 Oil solvation process for the treatment of oil contaminated sand |
| 04/24/1984 | US4444259 Apparatus and method for purging hydrogen sulfide gases from well water |
| 04/24/1984 | US4444258 Enhanced oil recovery |
| 04/24/1984 | US4444257 Method for in situ conversion of hydrocarbonaceous oil |
| 04/24/1984 | US4444256 Method for inhibiting sloughing of unfragmented formation in an in situ oil shale retort |
| 04/24/1984 | US4444255 Electrolytic decomposition to hydrogen, pressurization |
| 04/24/1984 | US4444253 For use with a pump |
| 04/24/1984 | US4444251 Combined installation comprising an activation pump and a safety valve disposed below this pump, in a hydrocarbon production well |
| 04/24/1984 | US4444044 Method and apparatus for determining the foaming characteristics of a crude oil stream at the wellhead |
| 04/24/1984 | CA1166152A1 Subsurface safety valve system with hydraulic packer |
| 04/24/1984 | CA1166151A1 Combination solvent injection-electric current application method for establishing fluid communication through heavy oil formation |
| 04/24/1984 | CA1166150A1 Method of improved oil recovery by simultaneous injection of water with an in-situ combustion process |
| 04/17/1984 | US4443347 Fracturing, injection, phenolic resin coatings on sand |
| 04/17/1984 | US4443133 Method for achieving acceptable U3 O8 levels in a restored formation |
| 04/17/1984 | US4443037 Method for controlling void fraction distribution in an in situ oil shale retort |
| 04/17/1984 | US4443036 Explosive expansion of formation in lifts for forming an in situ oil shale retort |
| 04/17/1984 | US4442901 Landfill gas recovery method |
| 04/17/1984 | US4442900 Subsea well completion system |
| 04/17/1984 | US4442897 Formation fracturing method |
| 04/17/1984 | US4442896 Treatment of underground beds |
| 04/17/1984 | US4442895 Method of hydrofracture in underground formations |
| 04/17/1984 | CA1165571A1 Antinpollution device and method for catching fluids leaking from an underwater source |
| 04/12/1984 | WO1984001405A1 Recovery of viscous hydrocarbons by electromagnetic heating in situ |
| 04/10/1984 | US4441861 Well production apparatus and method |
| 04/10/1984 | US4441839 Eccentric fluid delivery column for articulated drilling platform in deep water petroleum production |
| 04/10/1984 | US4441760 Method for closing a drift between adjacent in situ oil shale retorts |
| 04/10/1984 | US4441759 In situ oil shale retort system |
| 04/10/1984 | US4441561 Method and apparatus for treating well formations |
| 04/10/1984 | US4441560 Setting tool |
| 04/10/1984 | US4441555 Carbonated waterflooding for viscous oil recovery |
| 04/10/1984 | US4441554 Two interconnecting bore holes |
| 04/10/1984 | US4441519 Gas lift valve and method of presetting |
| 04/10/1984 | US4441427 Liquid desensitized, electrically activated detonator assembly resistant to actuation by radio-frequency and electrostatic energies |
| 04/10/1984 | CA1165361A1 Electrode unit for electrically heating underground hydrocarbon deposits |
| 04/10/1984 | CA1165360A1 Electrode device for electrically heating underground deposits of hydrocarbons |
| 04/10/1984 | CA1165226A1 Well system |
| 04/04/1984 | EP0104790A1 Apparatus for the delivery of hot fluids and methods of maintaining a vacuum in such apparatus |
| 04/03/1984 | US4440866 Process for the production of sintered bauxite spheres |
| 04/03/1984 | US4440524 Process for bringing a body of water into communication with a tunnel |
| 04/03/1984 | US4440523 Separating collector for subsea blowouts |
| 04/03/1984 | US4440450 For actuating downhole flow control valves of a borehole mining tool |
| 04/03/1984 | US4440447 Method for forming an in situ oil shale retort with explosive expansion towards a horizontal free face |
| 04/03/1984 | US4440423 Underwater hydraulic control connector |
| 04/03/1984 | US4440241 Method and apparatus for drilling a well bore |
| 04/03/1984 | US4440233 Setting tool |
| 04/03/1984 | US4440231 Downhole pump with safety valve |
| 04/03/1984 | US4440227 Well completion for injecting high purity oxygen in a fire flooding process |
| 04/03/1984 | US4440224 Method of underground fuel gasification |
| 04/03/1984 | US4440218 Slurry up particulate placement tool |
| 04/03/1984 | CA1164854A1 Well drilling method |
| 04/03/1984 | CA1164853A1 Continuous borehole formed horizontally through a hydrocarbon producing formation |
| 04/03/1984 | CA1164793A1 Direct firing downhole steam generator |
| 04/03/1984 | CA1164792A1 Pumping system for oil production |
| 04/03/1984 | CA1164791A1 Method of drilling a productive bed |
| 04/03/1984 | CA1164790A1 Method and apparatus for completing a well |
| 03/29/1984 | WO1984001188A1 Hydrojet drilling means and method |
| 03/27/1984 | US4439489 Particles covered with a cured infusible thermoset film and process for their production |
| 03/27/1984 | US4438976 Method of repair of short circuits for in situ leaching |
| 03/27/1984 | US4438817 Subsea well with retrievable piping deck |
| 03/27/1984 | US4438815 For packing particulate material in a well bore subsurface location |
| 03/27/1984 | US4438810 Apparatus for decentralizing and orienting a well logging or perforating instrument |
| 03/27/1984 | US4438729 Method of heating a first fluid |
| 03/27/1984 | CA1164335A1 In situ combustion of tar sands with injection of non- condensable gases |
| 03/20/1984 | US4438077 Two stage selective oxidative leach method to separately recover uranium and refractory uranium-mineral complexes |
| 03/20/1984 | US4437706 Hydraulic mining of tar sands with submerged jet erosion |
| 03/20/1984 | US4437521 Subsea wellhead connection assembly and methods of installation |
| 03/20/1984 | US4437520 Method for minimizing subsidence effects during production of coal in situ |
| 03/20/1984 | US4437519 In situ oil shale retort product blended with tosco ii crude |
| 03/20/1984 | US4437518 Apparatus and method for improving the productivity of an oil well |
| 03/20/1984 | US4437514 For controlling operation of a fluid operated gas lift valve |
| 03/20/1984 | CA1163919A1 Steam injection method and apparatus for recovery of oil |
| 03/20/1984 | CA1163918A1 Integrated in situ shale oil and mineral recovery process |
| 03/20/1984 | CA1163917A1 Device for temporarily closing duct-formers in well completion apparatus |
| 03/14/1984 | EP0102761A1 Sintered spherical pellets useful as gas and oil well proppants, production and use thereof |
| 03/13/1984 | US4436672 Oil recovery method utilizing glyceryl ether sulfonates |
| 03/13/1984 | US4436449 Method for aligning a pipe string |
| 03/13/1984 | US4436344 Alternate quenching and reignition of flame in combustion zone |
| 03/13/1984 | US4436156 Method of treating well formations employing foamed treatment fluids |
| 03/13/1984 | US4436155 Well cleanup and completion apparatus |
| 03/13/1984 | US4436154 Method for controlling subsurface blowout |
| 03/13/1984 | US4436153 In-situ combustion method for controlled thermal linking of wells |
| 03/13/1984 | US4436148 Chemical treatment for oil wells |
| 03/13/1984 | CA1163551A1 Production of heavy oil from tar sands |
| 03/07/1984 | EP0101855A1 Low density proppant for oil and gas wells |
| 03/06/1984 | US4435292 Flushing fluid circulation system |
| 03/06/1984 | US4435196 For mixtures of immiscible gaseous, liquid and/or solid components |
| 03/06/1984 | US4435108 Method of installing sub-sea templates |
| 03/06/1984 | US4435017 In situ oil shale retort with differing upper and lower void fractions |
| 03/06/1984 | US4435016 Underground pyrolysis |
| 03/06/1984 | US4434854 Pressure actuated vent assembly for slanted wellbores |
| 03/06/1984 | US4434852 Oil displacement |
| 03/06/1984 | US4434851 Method for steam injection in steeply dipping formations |
| 03/06/1984 | US4434849 Method and apparatus for recovering high viscosity oils |
| 03/06/1984 | US4434848 Maximizing fracture extension in massive hydraulic fracturing |
| 03/06/1984 | CA1163186A1 Method and means for waterflooding a hydrocarbon fluid containing permeable formation below a body of water |
| 03/06/1984 | CA1163185A1 Underground radial pipe network and a method of installing same |
| 03/06/1984 | CA1163184A2 Cylindrical and orthogonal-spiral mixing flow system for particulates and liquids |
| 03/01/1984 | WO1984000791A1 Wellhead system for exploratory wells |