Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › 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)
11/1985
11/19/1985US4553592 Method of protecting an RF applicator
11/19/1985US4553590 Apparatus for pumping subterranean fluids
11/19/1985CA1196858A1 Subsea well conception system, a base template for the system and a method of establishing production capability from multiple subsea wellheads
11/19/1985CA1196855A1 In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant
11/19/1985CA1196854A1 Stimulation of hydrocarbon flow from a geological formation
11/12/1985US4552668 Oxidation of sulfides in polymer-thickened aqueous solution
11/12/1985US4552409 In situ oil shale retort with controlled permeability for uniform flow
11/12/1985US4552234 Spiral gun apparatus
11/12/1985US4552220 Oil well evacuation system
11/12/1985US4552216 Method of producing a stratified viscous oil reservoir
11/12/1985US4552215 Method of gravel packing a well
11/12/1985US4552214 Pulsed in situ retorting in an array of oil shale retorts
11/12/1985CA1196572A1 Method of electrically heating underground hydrocarbon deposits
11/12/1985CA1196571A1 Process for recovering oil from subterranean formations
11/12/1985CA1196570A1 Method for controlling subsurface blowout
11/07/1985WO1985004893A1 Method and apparatus involving electromagnetic energy heating
11/06/1985EP0160449A1 Modular perforating gun
11/06/1985EP0160032A1 Method and apparatus for separating gases and liquids from well-head gases
11/05/1985US4550779 Process for the recovery of hydrocarbons for mineral oil deposits
11/05/1985US4550778 Well screen
11/05/1985CA1196277A1 Filter for separating discrete solid elements from a fluid stream
11/05/1985CA1196276A1 Bimetallic well screen for use in injection wells and method of making same
11/05/1985CA1196273A1 Solvent push-pull process for improving vertical conformance of steam drive process
11/05/1985CA1196272A1 Method of recovering viscous oil from a subterranean formation
11/05/1985CA1196270A1 Process for the uniform distribution of a two phase mixture
11/05/1985CA1196269A1 Method of recovering oil from a subterranean viscous oil-containing formation
11/05/1985CA1196268A1 Method of recovering viscous petroleum from a subterranean, petroleum-containing formation
11/05/1985CA1196232A1 Offshore process vessel and a method of operating same to receive oil and/or gas production from a subsea well
10/1985
10/29/1985US4549813 Apparatus for mixing a solution
10/29/1985US4549609 Adding a compound containing ammoniacal nitrogen to stabilize
10/29/1985US4549608 Hydraulic fracturing method employing special sand control technique
10/29/1985US4549607 Micellar slug for oil recovery
10/29/1985CA1195936A1 Liquid skimmer method and apparatus
10/29/1985CA1195920A1 In-situ bitumen recovery by percolation
10/23/1985EP0088776B1 System for preventing liquids from being driven to the flair stack tip
10/22/1985US4548281 Apparatus and method for installing well casings in the ground employing resonant sonic energy in conjunction with hydraulic pulsating jet action
10/22/1985US4548269 Steam injection well gravel prepack material of sintered bauxite
10/22/1985US4548267 Nonoxidizing gases, carbon dioxide, nitrogen, flue gas
10/22/1985US4548266 Method for isolating two aquifers in a single borehole
10/22/1985US4548252 Pressurization followed by injecting a stabilized but decomposable hydrogen peroxide solution for further expansion; oil and gas wells
10/22/1985CA1195606A1 In situ recovery process for heavy oil sands
10/22/1985CA1195585A1 Moonpool plug for connecting a flexible flowline to a process vessel
10/16/1985EP0158486A1 Stable forms of dialkylaromatic sulphonates
10/16/1985EP0158465A2 Multi-mode testing tool
10/16/1985EP0157957A1 Diverting material and method of use for well treatment
10/15/1985US4547468 Polycrystalline ceratmic sphere having a dense case; oil and gas wells
10/15/1985US4547149 System for preventing liquids from being driven to the flair stack tip
10/15/1985US4547078 For recovering oil by introducing steam
10/15/1985US4547019 In-situ recovery of mineral values with sulfuric acid
10/15/1985US4546830 Methods and apparatus for recovery of hydrocarbons from underground water tables
10/15/1985CA1195240A1 Separating collector for subsea blowouts
10/15/1985CA1195239A1 Oil collector for subsea blowouts
10/09/1985EP0157535A1 Well perforating gun
10/08/1985US4545912 Two-tailed surfactants having one aromatic containing tail and their use in chemical waterflooding
10/08/1985US4545911 Waterflooding; enhanced oil recovery
10/08/1985US4545737 Method for pumping a liquid from a well and apparatus for use therein
10/08/1985US4545731 Method and apparatus for producing a well
10/08/1985US4545622 Method of rubblization for in-situ oil shale processing
10/08/1985US4545620 Efficient in-situ solution mining; periodic stopping of leach injection while continuing production; altering flow path
10/08/1985US4545435 Conduction heating of hydrocarbonaceous formations
10/08/1985CA1194786A1 Thermal recovery of viscous oil from a dipping reservoir
10/08/1985CA1194785A1 Viscous oil recovery method
10/08/1985CA1194784A1 Cyclic solvent flooding to recover viscous oils
10/08/1985CA1194783A1 Method of recovering oil from a viscous oil- containing subsurface formation
10/08/1985CA1194781A1 Pump-down stinger assembly method and apparatus
10/08/1985CA1194780A1 Accelerated downhole pressure testing
10/08/1985CA1194685A1 Process for the production of sintered spheres
10/01/1985US4544207 Process for the uniform distribution of a two phase mixture
10/01/1985US4544206 Injection of leach solution, then gas and flow control agent and withdrawal solvated minerals
10/01/1985US4544037 Injection of high pressure gases
10/01/1985US4544036 Vertical flowline connector
10/01/1985US4544035 Apparatus and method for use in detonating a pipe-conveyed perforating gun
10/01/1985US4544034 Actuation of a gun firing head
10/01/1985US4544033 Injection of an internal olefin sulfonate, cosurfactant and brine,then an aqueous polymer, into a subterranean reservoir
10/01/1985US4544032 Method and apparatus for production of perfect well treatment fluid solutions
10/01/1985US4544031 Sonic apparatus for augmenting fluid flow from fluid-bearing strata employing sonic fracturing of such strata
10/01/1985US4543703 Method of field assembly of a selected number of shaped charges in a well casing perforating gun
10/01/1985US4543700 Method of detachably securing an explosive charge container in a hollow carrier for a perforating device
10/01/1985CA1194409A1 Hanger mechanism
10/01/1985CA1194406A1 Varying temperature oil recovery method
10/01/1985CA1194405A1 Submersible pump telemetry system
10/01/1985CA1194404A1 Procedure for drawing water from a ground water store
09/1985
09/26/1985WO1985004213A1 Restoring permeability to a polymer plugged well
09/25/1985EP0155768A2 Contamination removal system and method
09/25/1985EP0155598A2 Method for the underground gasification of coal
09/25/1985EP0155544A2 Apparatus for the transport of flowable materials
09/24/1985US4543186 Polarizing and aerating pumped water
09/24/1985CA1193964A1 Method and apparatus for producing natural gas from tight formations
09/24/1985CA1193963A1 Positive fire indicator perforating system
09/24/1985CA1193913A1 Electrically driven submersible pump system
09/18/1985EP0155128A2 Devices for actuating explosive charges in wellbores, and methods of perforating boreholes
09/17/1985US4541753 Subsea pipeline connection
09/17/1985US4541487 Suspending salt crystals to bridge perforations
09/17/1985US4541486 For use in a well bore
09/17/1985US4541484 Combination gravel packing device and method
09/11/1985EP0154532A2 High explosive devices for use in wells and methods of detonating them
09/10/1985US4540052 Generation of microorganism control composition and use thereof
09/10/1985US4540051 One trip perforating and gravel pack system
09/10/1985US4540050 Injecting steam, non-condensable gas and alkyl oxide alkyl sulfona
09/10/1985US4540049 Enhanced oil recovery with alkoxy alkyl sulfonate compound
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