| 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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| 06/27/1984 | EP0111488A1 A method of extracting gas from liquid |
| 06/26/1984 | US4456073 Flexible connection apparatus |
| 06/26/1984 | US4456071 Oil collector for subsea blowouts |
| 06/26/1984 | US4456069 Process and apparatus for treating hydrocarbon-bearing well formations |
| 06/26/1984 | US4456067 Process for inhibiting hydrate formation in producing gas wells |
| 06/26/1984 | US4456066 Visbreaking-enhanced thermal recovery method utilizing high temperature steam |
| 06/26/1984 | US4456065 Heavy oil recovering |
| 06/26/1984 | CA1169760A1 Enhanced oil recovery |
| 06/26/1984 | CA1169759A1 Oil recovery with dilute surfactant systems |
| 06/20/1984 | EP0111353A2 Blanket-medium/brine interface detection in a solution-mining process |
| 06/19/1984 | USRE31604 Multi-layer well screen |
| 06/19/1984 | US4455255 Cyanohydrocarbylated alkoxylates and glycerides |
| 06/19/1984 | US4455215 Process for the geoconversion of coal into oil |
| 06/19/1984 | US4454918 Thermally stimulating mechanically-lifted well production |
| 06/19/1984 | US4454917 Thermal acidization and recovery process for recovering viscous petroleum |
| 06/19/1984 | US4454916 In-situ combustion method for recovery of oil and combustible gas |
| 06/19/1984 | US4454915 In situ retorting of oil shale with air, steam, and recycle gas |
| 06/19/1984 | US4454914 Method for conditioning geothermal brine to reduce scale formation |
| 06/19/1984 | US4454814 Select-fire systems and methods for perforating guns |
| 06/19/1984 | EP0053117A4 Blender apparatus. |
| 06/19/1984 | CA1169356A1 Bimetallic well screen for use in injection wells and method of making same |
| 06/19/1984 | CA1169355A1 Flow control apparatus for wells |
| 06/19/1984 | CA1169353A1 Hydraulic mining of tar sands |
| 06/19/1984 | CA1169333A1 Oil well pump drives and servo control mechanisms therefor |
| 06/19/1984 | CA1169328A1 Mono-rail boom supported articulated service line |
| 06/13/1984 | EP0110441A1 Device for the head-to-head junction of two pipes for the transfer of fluid oil products, particularly for high-depth submarine use |
| 06/12/1984 | US4454260 Stable suspensions of water-soluble polymers and their manufacture |
| 06/12/1984 | US4453859 Device for connecting and disconnecting the swivel of an oscillating marine platform and a method for putting the said device into use |
| 06/12/1984 | US4453829 Apparatus for mixing solids and fluids |
| 06/12/1984 | US4453769 In situ oil shale retort having horizontal voids with side pillars |
| 06/12/1984 | US4453599 Method and apparatus for controlling a well |
| 06/12/1984 | US4453597 Stimulation of hydrocarbon flow from a geological formation |
| 06/12/1984 | US4453596 Method of treating subterranean formations utilizing foamed viscous fluids |
| 06/12/1984 | US4453595 Method of measuring fracture pressure in underground formations |
| 06/12/1984 | US4453568 For controlling injection of gas into a well |
| 06/12/1984 | CA1168974A1 Counterbalanced pumping system |
| 06/12/1984 | CA1168847A1 Surfactant waterflooding in a high brine environment |
| 06/05/1984 | US4452491 Recovery of hydrocarbons from deep underground deposits of tar sands |
| 06/05/1984 | US4452490 Treatment of subterranean uranium-bearing formations |
| 06/05/1984 | US4452489 Multiple level methane drainage shaft method |
| 06/05/1984 | US4452312 Modular undersea oil production plant |
| 06/05/1984 | US4452309 Method and means for uniformly distributing both phases of steam on the walls of a well |
| 06/05/1984 | CA1168577A1 Underwater wellhead connector |
| 06/05/1984 | CA1168576A1 Apparatus and method for controlling injection fluid flow in a well annulus |
| 06/05/1984 | CA1168575A1 Automatic reset pneumatic timer |
| 06/05/1984 | CA1168574A1 Anti-gas locking apparatus |
| 05/29/1984 | US4451631 Agent and method for deoiling sand and rock masses |
| 05/29/1984 | US4451209 Method of extracting fluid from the earth |
| 05/29/1984 | US4451177 Guideline system for positioning subsea equipment |
| 05/29/1984 | US4451088 Gaining access to very deep coal seams by carrying explosive in density controlled fluid |
| 05/29/1984 | US4450913 Superheated solvent method for recovering viscous petroleum |
| 05/29/1984 | US4450911 Viscous oil recovery method |
| 05/29/1984 | US4450910 Injecting oxidizers and in situ combustion |
| 05/29/1984 | US4450909 Combination solvent injection electric current application method for establishing fluid communication through heavy oil formation |
| 05/29/1984 | CA1168282A1 Electrode device for electrically heating underground deposits of hydrocarbons |
| 05/29/1984 | CA1168034A1 Shear-stabilized emulsion flooding process |
| 05/23/1984 | EP0109288A2 Heating oil in wells and generating steam from well water |
| 05/22/1984 | US4449892 Pump with rotary sonic pressure wave generator |
| 05/22/1984 | US4449850 Antipollution device for recovering fluids lighter than water escaping from an underwater source |
| 05/22/1984 | US4449753 Method for bulking full a retort |
| 05/22/1984 | US4449585 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations |
| 05/22/1984 | US4449582 Sequenced production incorporating fluid rod pump |
| 05/22/1984 | CA1167760A1 System for water extraction in gas producing wells for the reestablishment of gas production |
| 05/22/1984 | CA1167759A1 Well treating process for chemically heating and modifying a subterranean reservoir |
| 05/16/1984 | EP0108519A2 Method and apparatus for fracturing rock |
| 05/15/1984 | US4448709 Proppant concentrator |
| 05/15/1984 | US4448568 Marine surface facility work station for subsea equipment handling |
| 05/15/1984 | US4448551 Method and apparatus for shaft support for turbine pumps |
| 05/15/1984 | US4448535 Apparatus for blending additives into a liquid |
| 05/15/1984 | US4448252 Minimizing subsidence effects during production of coal in situ |
| 05/15/1984 | US4448251 In situ conversion of hydrocarbonaceous oil |
| 05/15/1984 | US4448250 Method of freeing a hollow tubular member |
| 05/15/1984 | US4448249 Method of in situ oil shale retort ignition with oxygen control |
| 05/15/1984 | CA1167375A1 Seal receptacle assembly |
| 05/15/1984 | CA1167374A1 Method of mining an oil deposit |
| 05/15/1984 | CA1167373A1 Method of treating reservoirs containing very viscous crude oil or bitumen |
| 05/10/1984 | WO1984001849A1 Fine and coarse servo system for access and tracking on an optical disk |
| 05/09/1984 | EP0107842A1 Device for repeatedly carrying out the operations of installing or withdrawing an autonomous submersible module comprising a section of a conduit connectable to a flow-line |
| 05/08/1984 | US4447247 Method and apparatus for collecting oil and gas from an underwater blow-out |
| 05/08/1984 | US4446921 Treatment with supercritical gas |
| 05/08/1984 | US4446920 Method and apparatus for perforating or cutting with a solid fueled gas mixture |
| 05/08/1984 | US4446919 Injecting carbon dioxide to produce nutrients for microorganism growth to produce surfactants |
| 05/08/1984 | US4446918 Detonation explosives in well bores, in situ ignition and gasification of coal deposits |
| 05/08/1984 | CA1166970A1 Slurry concentrator and methods of use |
| 05/08/1984 | CA1166955A1 Method of solution mining subsurface orebodies to reduce restoration activities |
| 05/08/1984 | CA1166954A1 Well perforating apparatus |
| 05/02/1984 | EP0107484A2 Fracturing method for stimulation of wells |
| 05/01/1984 | US4446079 Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails |
| 05/01/1984 | US4445807 Diverless subsea template levelling system and method |
| 05/01/1984 | US4445574 Continuous borehole formed horizontally through a hydrocarbon producing formation |
| 05/01/1984 | US4445573 Insulating foam steam stimulation method |
| 05/01/1984 | CA1166564A1 Well perforating apparatus |
| 05/01/1984 | CA1166531A1 Steam generation from low quality feedwater |
| 05/01/1984 | CA1166434A1 Process and composition for scavenging hydrogen sulfide in aqueous drilling fluids |
| 04/25/1984 | EP0106755A1 Process and device for producing a number of hydrodynamic functions in a current composed of at least two phases |
| 04/25/1984 | EP0106665A1 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with borohydride |
| 04/24/1984 | US4444433 Method for forming an in situ oil shale retort in differing grades of oil shale |
| 04/24/1984 | US4444276 Underground radial pipe network |
| 04/24/1984 | US4444275 Carousel for vertically moored platform |
| 04/24/1984 | US4444265 Drain hole drilling |