| 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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| 08/28/1984 | CA1173352A1 Producing well stimulation method-combination of thermal and solvent |
| 08/28/1984 | CA1173351A1 Method and apparatus for positioning a liquid at the bottom of a well |
| 08/28/1984 | CA1173260A1 Sliding leg tower |
| 08/28/1984 | CA1173252A1 Apparatus for mixing a solution |
| 08/22/1984 | EP0116369A2 Proppant for fractured wells |
| 08/22/1984 | EP0116181A1 Filter tube |
| 08/21/1984 | US4466668 Method of forming an in situ oil shale retort in formation with joints |
| 08/21/1984 | US4466485 Viscous oil recovery method |
| 08/21/1984 | US4466484 Electrical device for promoting oil recovery |
| 08/21/1984 | US4466273 In suspect pipe fittings |
| 08/21/1984 | CA1172956A1 Method of reduced sulfonate loss in micellar flooding |
| 08/21/1984 | CA1172938A1 Articulated conduit system for a floating body |
| 08/21/1984 | CA1172837A1 Process for the production of sintered bauxite spheres |
| 08/15/1984 | EP0115938A1 Riser support system |
| 08/15/1984 | EP0115836A2 Polymeres useful in the recovery and processing of natural resources |
| 08/14/1984 | US4465401 Minimizing subsidence effects during production of coal in situ |
| 08/14/1984 | US4465138 Cyclic thermal solvent recovery method utilizing visbroken produced crude oil |
| 08/14/1984 | US4465137 Varying temperature oil recovery method |
| 08/14/1984 | US4465136 Process for enhanced oil recovery from subterranean formations |
| 08/14/1984 | US4465135 Fire flood method for recovering petroleum from oil reservoirs of low permeability and temperature |
| 08/14/1984 | CA1172703A1 Apparatus and method for radio frequency heating of hydrocarbonaceous earth formations including an impedance matching technique |
| 08/14/1984 | CA1172589A1 Enzymatic process for treating xanthan gums in order to increase the filterability of their aqueous solutions |
| 08/14/1984 | CA1172588A1 Enzymatic process for clarifying xanthan gums in order to enhance their injectability and filterability |
| 08/14/1984 | CA1172559A1 Solution mining of an inclined structure |
| 08/14/1984 | CA1172544A1 Equipment adaptable to telescoping service line |
| 08/14/1984 | CA1172436A1 Aliphatic alcohol to stabilize viscosity of hydrolyzed polyacrylamide |
| 08/07/1984 | US4464345 Method of precipitating contaminants in a uranium leachate using ferri ions, complexing agent, and pH control |
| 08/07/1984 | US4463988 Horizontal heated plane process |
| 08/07/1984 | US4463987 System for undersea recovery of hydrocarbons |
| 08/07/1984 | US4463809 With acidity ion exchange resin |
| 08/07/1984 | US4463807 Minimizing subsidence effects during production of coal in situ |
| 08/07/1984 | US4463805 Exothermic production of hot gas to pressurize and thin oil |
| 08/07/1984 | CA1172161A1 Method and apparatus for completing a well |
| 08/07/1984 | CA1172160A1 Steam foam drive process |
| 08/07/1984 | CA1172159A1 Heavy oil recovery process |
| 08/02/1984 | WO1984003021A1 Apparatus and method for heating, thawing and/or demoisturizing materials and/or objects |
| 07/31/1984 | US4462717 Riser for great water depths |
| 07/31/1984 | US4462466 Method of propping fractures in subterranean formations |
| 07/31/1984 | US4462465 Controlling injection of fluids into wells |
| 07/31/1984 | US4462429 Apparatus and method for transferring a Bingham solid through a long conduit |
| 07/25/1984 | EP0114103A2 Positive fire indicator perforating system for wells |
| 07/24/1984 | US4461354 Hydraulic well cap |
| 07/24/1984 | US4461353 For a well completion utilizing a submersible pump |
| 07/24/1984 | US4461350 Thermal solvent recovery method utilizing visbroken produced crude oil |
| 07/24/1984 | US4461349 Long-line-drive pattern for in situ gasification of subterranean carbonaceous deposits |
| 07/24/1984 | CA1171379A1 Method and apparatus for producing hydrogen |
| 07/17/1984 | US4460320 Sonic pressure wave surface operated pump with extensible pumping assembly |
| 07/17/1984 | US4460276 Open inlet blender |
| 07/17/1984 | US4460218 Characterization of in situ oil shale retorts prior to ignition |
| 07/17/1984 | US4460048 Pump through equalizing check valve for use in intermittent gas lift well |
| 07/17/1984 | US4460047 In an underwater well installation |
| 07/17/1984 | US4460045 Foam gravel packing in highly deviated wells |
| 07/17/1984 | US4460044 Advancing heated annulus steam drive |
| 07/17/1984 | US4460040 For controlling the flow around a seal element |
| 07/17/1984 | US4460038 Installation for testing a well and a process for use thereof |
| 07/17/1984 | CA1170998A1 Thermal circulation gas treater |
| 07/17/1984 | CA1170983A1 Combination hydraulically set hanger assembly with expansion joint |
| 07/17/1984 | CA1170982A1 Well valve |
| 07/17/1984 | CA1170980A1 Method of recovering viscous petroleum employing heated subsurface perforated casing containing a movable diverter |
| 07/17/1984 | CA1170979A1 In situ combustion for oil recovery |
| 07/17/1984 | CA1170977A1 Method for underground gasification of solid fuels |
| 07/10/1984 | US4459480 Method of measuring void spaces |
| 07/10/1984 | US4459066 Flexible line system for a floating body |
| 07/10/1984 | US4459065 Method connecting a flowline to a subsea structure |
| 07/10/1984 | US4458948 Horizontal free face blasting for minimizing channeling and mounding in situ retort with cusp at intermediate elevation |
| 07/10/1984 | US4458946 Secondary oil shale recovery technique |
| 07/10/1984 | US4458945 Oil recovery mining method and apparatus |
| 07/10/1984 | US4458944 Fragmentation, explosive expansion; oxygenation |
| 07/10/1984 | US4458760 Oil recovery process for stratified high salinity reservoirs |
| 07/10/1984 | US4458759 Use of surfactants to improve oil recovery during steamflooding |
| 07/10/1984 | US4458758 Selected well completion for improving vertical conformance of steam drive process |
| 07/10/1984 | US4458757 In situ shale-oil recovery process |
| 07/10/1984 | US4458756 Heavy oil recovery from deep formations |
| 07/10/1984 | US4458754 Method and system for automatically raising product from a heated well |
| 07/10/1984 | US4458753 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with borohydride |
| 07/10/1984 | US4458752 Downhole tool inflatable packer assembly |
| 07/10/1984 | US4458521 Leak detection system |
| 07/10/1984 | US4458494 Preventing vaporization of the liquid in a centrifugal gas-liquid separator |
| 07/10/1984 | CA1170566A1 Marine compliant riser system and method for its installation |
| 07/10/1984 | CA1170444A1 Use of hydrogen-free carbon monoxide with steam in recovery of heavy oil at low temperatures |
| 07/06/1984 | EP0083366A4 Moving mass pump jack and method of operation. |
| 07/03/1984 | US4457988 Electrode of solid vein material in earth; mining |
| 07/03/1984 | US4457383 High temperature selective fire perforating gun and switch therefor |
| 07/03/1984 | US4457378 Flowline pull-in apparatus and method |
| 07/03/1984 | US4457374 Transient response process for detecting in situ retorting conditions |
| 07/03/1984 | US4457373 Carboxymethylated ethoxylate |
| 07/03/1984 | US4457371 Method for demulsification of bitumen emulsions |
| 07/03/1984 | US4457367 Downhole pump and testing apparatus |
| 07/03/1984 | US4457365 In situ radio frequency selective heating system |
| 07/03/1984 | US4457338 Telescoping boom supported flip-flop service line |
| 07/03/1984 | CA1170339A1 Backspin detection circuit for a submersible pump |
| 07/03/1984 | CA1170178A1 Marine compliant riser system |
| 07/03/1984 | CA1170177A1 Marine compliant riser system |
| 07/03/1984 | CA1170175A1 Method and apparatus for producing a high pressure thermal vapor stream |
| 07/03/1984 | CA1170169A1 Method of treating a well bore |
| 07/03/1984 | CA1170168A1 Substantially self-powered method and apparatus for recovering hydrocarbons from hydrocarbon-containing solid hydrates |
| 07/03/1984 | CA1170167A2 Counterbalanced pumping system |
| 07/03/1984 | CA1170166A1 Well completion method and apparatus |
| 07/03/1984 | CA1170065A1 Process for communicating a water body with tunnels bored under the bottom of said body |
| 06/27/1984 | EP0111555A1 De-watering pump |