| 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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| 04/17/1985 | EP0137578A2 A method of fracturing a subterranean formation |
| 04/17/1985 | EP0137538A2 Biopolymer formulations and processes for preparing them |
| 04/16/1985 | US4511374 Gas temperature control system for natural gas separator |
| 04/16/1985 | US4511000 Bitumen production and substrate stimulation |
| 04/16/1985 | US4510999 Well cleanup and completion method and apparatus |
| 04/16/1985 | US4510997 Solvent flooding to recover viscous oils |
| 04/16/1985 | US4510996 Well screen assembly with longitudinally ported connector sub |
| 04/16/1985 | US4510958 Apparatus and method for transferring a Bingham solid through a long conduit |
| 04/16/1985 | CA1185620A1 Addition products from ethylene oxide-propylene oxide block polymers and bis-glycidyl ethers, a process for their preparation and their use |
| 04/16/1985 | CA1185542A1 Vertical drip separator apparatus and method |
| 04/16/1985 | CA1185519A1 Variable rpm submersible pump assembly |
| 04/11/1985 | WO1985001450A1 Method and apparatus for separating gases and liquids from well-head gases |
| 04/10/1985 | EP0136935A1 Device for drilling a multidrain oil well and for putting it into production |
| 04/09/1985 | US4510437 Apparatus and method for measuring the permittivity of a substance |
| 04/09/1985 | US4509957 Cyclic char gasifier |
| 04/09/1985 | US4509604 Pressure responsive perforating and testing system |
| 04/09/1985 | US4509600 Pipe base well screen and system for joining a plurality of well screen segments |
| 04/09/1985 | US4509599 Gas well liquid removal system and process |
| 04/09/1985 | US4509598 Fracturing fluids containing bouyant inorganic diverting agent and method of use in hydraulic fracturing of subterranean formations |
| 04/09/1985 | US4509596 Enhanced oil recovery |
| 04/09/1985 | US4509595 In situ combustion for oil recovery |
| 04/09/1985 | US4509365 Detecting and analyzing faults in downhole equipment |
| 04/09/1985 | CA1185170A1 Determination of fracture closure pressure |
| 04/03/1985 | EP0136235A2 Through the tubing perforating gun assembly |
| 04/02/1985 | US4508389 Apparatus and method for hydraulically mining unconsolidated subterranean mineral formations |
| 04/02/1985 | US4508172 Tar sand production using thermal stimulation |
| 04/02/1985 | US4508170 Method of increasing the yield of hydrocarbons from a subterranean formation |
| 04/02/1985 | US4508168 RF Applicator for in situ heating |
| 04/02/1985 | US4508166 Subsurface safety system |
| 04/02/1985 | US4508133 Protective cover retainer |
| 04/02/1985 | CA1184811A1 Particles covered with a cured infusible thermoset film and process for their production |
| 03/26/1985 | US4507210 Measurement of filtration properties of slurries |
| 03/26/1985 | US4506735 Operating system for increasing the recovery of fluids from a deposit, simplifying production and processing installations, and facilitating operations with enhanced safety |
| 03/26/1985 | US4506734 Fracturing fluid breaker system which is activated by fracture closure |
| 03/26/1985 | US4506733 Metal salt, low viscosity |
| 03/26/1985 | US4506730 Device for assembling jacketed lengths of pipe base well screens |
| 03/19/1985 | US4505334 Ball sealer |
| 03/19/1985 | US4505333 Methods of and means for low volume wellhead compression hydrocarbon _gas |
| 03/19/1985 | CA1184132A1 Flow control for oil, gas, water separation |
| 03/19/1985 | CA1184022A1 Use of surfactants to improve oil recovery during steamflooding |
| 03/13/1985 | EP0134021A1 Process for reducing water production in oil production wells |
| 03/12/1985 | US4504400 Water, hydroxyalkyl cellulose, fluoboric acid, hydrochloric acid |
| 03/12/1985 | US4503911 Thermal recovery method for optimum in-situ visbreaking of heavy oil |
| 03/12/1985 | US4503910 Viscous oil recovery method |
| 03/12/1985 | US4503752 Hydraulic pumping unit |
| 03/12/1985 | CA1183985A1 High polymer solutions having an increased drag and process for their manufacture |
| 03/12/1985 | CA1183909A1 Rf applicator for in situ heating |
| 03/12/1985 | CA1183769A1 Device for fracturing a hydrocarbon producing formation |
| 03/06/1985 | EP0133742A1 Method of treating a subterranean formation with a diverting agent |
| 03/05/1985 | US4502959 Purification of secondary recovery waterflood liquids |
| 03/05/1985 | US4502843 Valveless free plunger and system for well pumping |
| 03/05/1985 | US4502733 Oil mining configuration |
| 03/05/1985 | US4502550 For use in a cased well bore |
| 03/05/1985 | US4502539 An inclined coal layer |
| 03/05/1985 | US4502538 Polyalkoxy sulfonate, CO2 and brine drive process for oil recovery |
| 03/05/1985 | US4502536 Submersible pump |
| 03/05/1985 | US4502535 Jet engine pump and downhole heater |
| 03/05/1985 | US4502505 Telescoping boom supported clustered service line |
| 03/05/1985 | CA1183341A1 Surfactant enhanced injectivity of xanthan mobility control solutions for tertiary oil recovery |
| 02/28/1985 | WO1985000851A1 Oil recovery systems |
| 02/27/1985 | EP0133439A1 Apparatus and method for heating, thawing and/or demoisturizing materials and/or objects |
| 02/26/1985 | US4501445 Method of in-situ hydrogenation of carbonaceous material |
| 02/26/1985 | US4501337 Apparatus for forming and using a bore hole |
| 02/26/1985 | US4501331 Method of completing a well |
| 02/26/1985 | US4501330 Well completion apparatus and method |
| 02/26/1985 | US4501329 Graphite, carbon black, clay suspensions, quartz;reduced particle sizes |
| 02/26/1985 | US4501328 Method of consolidation of oil bearing sands |
| 02/26/1985 | US4501327 Split casing block-off for gas or water in oil drilling |
| 02/26/1985 | US4501326 In-situ recovery of viscous hydrocarbonaceous crude oil |
| 02/26/1985 | US4501325 Method for predicting workovers and shut-ins from analyzing the annulus effluent of a well |
| 02/19/1985 | US4500263 Electrically driven submersible pump system |
| 02/19/1985 | US4499951 Well completion apparatus |
| 02/19/1985 | US4499949 Injecting by-product hydrogen sulfide |
| 02/19/1985 | US4499948 Viscous oil recovery using controlled pressure well pair drainage |
| 02/19/1985 | CA1182763A1 Vapour recovery unit |
| 02/19/1985 | CA1182745A1 Packerless well completion assembly |
| 02/19/1985 | CA1182743A1 Downhole steam generator and turbopump |
| 02/19/1985 | CA1182742A1 Enhanced oil recovery by a miscibility enhanced process |
| 02/19/1985 | CA1182716A1 Telescoping boom supported flip-flop service line |
| 02/13/1985 | EP0132891A1 Method and apparatus for connecting a flowline to a subsea structure and laying the flowline from the subsea structure |
| 02/12/1985 | US4499189 Bacteria carrying plasmid having temperature dependent plasmid copy number |
| 02/12/1985 | US4498706 Solution mining of trona or nahcolite ore with aqueous NaOH and HCl solvents |
| 02/12/1985 | US4498705 Method and apparatus for in-situ mining by leaching ores containing metal values |
| 02/12/1985 | US4498543 Method for placing a liner in a pressurized well |
| 02/12/1985 | US4498542 Direct contact low emission steam generating system and method utilizing a compact, multi-fuel burner |
| 02/12/1985 | US4498541 Method of well completion |
| 02/12/1985 | US4498537 Producing well stimulation method - combination of thermal and solvent |
| 02/12/1985 | US4498536 Method of washing, injecting swabbing or flow testing subterranean wells |
| 02/12/1985 | US4498535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line |
| 02/12/1985 | US4498534 Liner hanger assembly |
| 02/12/1985 | CA1182392A1 Unplugging brine-submerged perforations in a well |
| 02/05/1985 | US4497635 Sulfur remelting |
| 02/05/1985 | US4497592 Self-levelling underwater structure |
| 02/05/1985 | US4497371 Setting tool and retrievable landing assembly |
| 02/05/1985 | US4497370 Apparatus and method for recovery of liquid hydrocarbons from ground water |
| 02/05/1985 | US4497368 Hanger mechanism |
| 02/05/1985 | US4497367 Liner hanger |
| 02/05/1985 | US4497366 Packer actuated vent assembly |
| 02/05/1985 | CA1182104A1 Method and apparatus for forming and using a bore hole |
| 02/05/1985 | CA1182040A1 Remotely replaceable guidepost method and apparatus |