| 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) |
|---|
| 09/21/1983 | EP0088776A1 System for preventing liquids from being driven to the flair stack tip. |
| 09/20/1983 | US4405291 Downhole double acting pump |
| 09/20/1983 | US4405261 Subsea template levelling system and method |
| 09/20/1983 | US4405258 Method for containing oil and/or gas within a blow-out cover dome |
| 09/20/1983 | US4405176 Method for hydraulically mining unconsolidated subterranean mineral formations using remote support |
| 09/20/1983 | US4405016 Underwater Christmas tree cap and lockdown apparatus |
| 09/20/1983 | US4405015 With acrylic ester or amide homo-(or co-) polymers |
| 09/14/1983 | EP0088516A1 An electrically activated detonator assembly |
| 09/14/1983 | EP0088376A2 Method and apparatus for the recovery of hydrocarbons |
| 09/13/1983 | US4404112 Mixture of hydrocarbon oils and polysiloxane having end groups; fracturing; anticlogging agents; gas and oil wells |
| 09/13/1983 | US4404110 Then sulfonation-used in enhanced oil recovery |
| 09/13/1983 | US4404109 Aqueous micro-emulsions of organic substances |
| 09/13/1983 | US4404093 Removing floating contaminants from water wells |
| 09/13/1983 | US4403654 Torque transmitting expansion joint and a hanger assembly incorporating same |
| 09/13/1983 | CA1153691A1 Isolation gravel packer |
| 09/07/1983 | EP0087852A1 Hydraulic fracturing propping agent |
| 09/06/1983 | US4403071 Sulfated ethoxylated acrylic acid polymer product |
| 09/06/1983 | US4402552 Open surface flotation method for extracted crude oil |
| 09/06/1983 | US4402551 Method and apparatus to complete horizontal drain holes |
| 09/06/1983 | US4402550 Method for forming an in situ oil shale retort with controlled seismic vibration |
| 09/06/1983 | US4402363 Petroleum recovery, bitumen recovery from tar sand |
| 09/06/1983 | CA1153307A1 Rotary drive assembly for downhole rotary pump |
| 09/06/1983 | CA1153306A1 Hinged conductor casing for deviated driving and method therefor |
| 09/06/1983 | CA1153274A1 Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol |
| 09/06/1983 | CA1153273A1 Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising an acylated polyether polyol |
| 09/06/1983 | CA1153272A1 Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols |
| 08/30/1983 | US4401635 Mining sodium carbonate with sodium hydroxide solution |
| 08/30/1983 | US4401345 Hydraulic borehole mining system |
| 08/30/1983 | US4401163 Modified in situ retorting of oil shale |
| 08/30/1983 | US4401162 In situ oil shale process |
| 08/30/1983 | US4401159 Jet engine pump and downhole heater |
| 08/30/1983 | US4401158 One trip multi-zone gravel packing apparatus |
| 08/30/1983 | CA1152892A1 Connecting/deconnecting device between a first rigid riser with a self aligning mounting on a base and a second rigid conduit mounted on the same base |
| 08/30/1983 | CA1152890A1 Method and column for collection and separation of oil, gas and water from blowing wells at the sea bed |
| 08/30/1983 | CA1152889A1 Steam stimulation process for recovering heavy oil |
| 08/30/1983 | CA1152888A1 Sand control method employing special hydraulic fracturing technique |
| 08/30/1983 | CA1152853A1 Micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols |
| 08/30/1983 | CA1152852A1 Micellar solutions of thin film spreading agents comprising resinous polyalkylene oxide adducts |
| 08/30/1983 | CA1152732A2 Surfactant oil recovery process usable in high temperature formations |
| 08/24/1983 | EP0086440A2 Folding service line |
| 08/23/1983 | US4400109 Complaint riser yoke assembly with breakway support means |
| 08/23/1983 | US4400034 Coal comminution and recovery process using gas drying |
| 08/23/1983 | US4399873 Retrievable insert landing assembly |
| 08/23/1983 | US4399868 Well treatment with nitrogen-generating heating solution |
| 08/23/1983 | US4399866 Method for controlling the flow of subterranean water into a selected zone in a permeable subterranean carbonaceous deposit |
| 08/23/1983 | US4399865 Concentric steaming string downhole apparatus |
| 08/23/1983 | CA1152628A1 Method for determining the extent of subsurface reaction involving acoustic signals |
| 08/23/1983 | CA1152428A1 Simultaneous oil recovery and waste disposal process |
| 08/23/1983 | CA1152312A1 Gel of crosslinked acid polysaccharide for stimulation of wells |
| 08/17/1983 | EP0086099A2 Guideline system for positioning subsea equipment |
| 08/16/1983 | US4399039 Treatment of tailings pond sludge |
| 08/16/1983 | US4398870 Variable volume sonic pressure wave surface operated pump |
| 08/16/1983 | US4398846 Subsea riser manifold with structural spanning member for supporting production riser |
| 08/16/1983 | US4398769 Method for fragmenting underground formations by hydraulic pressure |
| 08/16/1983 | US4398604 Method and apparatus for producing a high pressure thermal vapor stream |
| 08/16/1983 | US4398603 Steam generation from low quality feedwater |
| 08/16/1983 | US4398602 Gravity assisted solvent flooding process |
| 08/16/1983 | US4398597 Means and method for protecting apparatus situated in a borehole from closure of the borehole |
| 08/16/1983 | US4398555 Flow control valve |
| 08/16/1983 | US4398416 Determination of fracturing fluid loss rate from pressure decline curve |
| 08/16/1983 | CA1152058A1 Blast hole grooving bit and wear resistant compact |
| 08/16/1983 | CA1152017A1 Treatment of brackish water |
| 08/16/1983 | CA1151998A1 Oil well pumping apparatus |
| 08/16/1983 | CA1151997A1 Process for stimulating a well with a saline surfactant sulfate, alkanol and acid system |
| 08/16/1983 | CA1151996A1 Determination of maximum fracture pressure |
| 08/09/1983 | US4397819 Rejuvenation of the anion exchanger used for uranium recovery |
| 08/09/1983 | US4397612 Gas lift utilizing a liquefiable gas introduced into a well |
| 08/09/1983 | US4397582 Method of creating a cold water conduit to be used in ocean thermal energy conversion systems |
| 08/09/1983 | US4397502 Two-pass method for developing a system of in situ oil shale retorts |
| 08/09/1983 | US4397357 Disconnectable production riser assembly |
| 08/09/1983 | US4397353 Method for vertical fracture growth control |
| 08/09/1983 | US4397352 Noncondensable hydrocarbon gas and hydrogen sulfide; recovering |
| 08/09/1983 | CA1151540A1 Insulated casing assembly |
| 08/09/1983 | CA1151539A1 Method and apparatus for collecting oil and gas from an underwater blow-out |
| 08/09/1983 | CA1151532A1 High vertical conformance steam drive oil recovery method |
| 08/09/1983 | CA1151531A1 Injection well with high-pressure, high-temperature in situ down-hole steam formation |
| 08/09/1983 | CA1151530A1 Recovery method for high viscosity petroleum |
| 08/09/1983 | CA1151529A1 Viscous oil recovery method |
| 08/09/1983 | CA1151528A1 Method and apparatus for optimizing production in a continuous or intermittent gas-lift well |
| 08/09/1983 | CA1151527A1 Proppant concentrator |
| 08/03/1983 | EP0084886A2 Process for increasing the hydrocarbon yield from a subterranean formation |
| 08/02/1983 | US4396404 Flow control for oil, gas, water separation |
| 08/02/1983 | US4396314 Connection unit for securing offshore structures to marine bottom |
| 08/02/1983 | US4396231 Horizontal free face blasting for minimizing channeling and mounding |
| 08/02/1983 | US4396230 Multiple branch well containing one producer and one injector well |
| 08/02/1983 | US4396075 Multiple branch completion with common drilling and casing template |
| 08/02/1983 | US4396063 Process and system for providing multiple streams of wet steam having substantially equal quality for recovering heavy oil |
| 08/02/1983 | US4396062 Apparatus and method for time-domain tracking of high-speed chemical reactions |
| 08/02/1983 | CA1151063A1 Enhanced oil recovery employing blend of carbon dioxide, inert gas and intermediate hydrocarbons |
| 07/26/1983 | US4395337 Treatment of brackish water |
| 07/26/1983 | US4395157 Safety off-shore drilling and pumping platform |
| 07/26/1983 | CA1150717A1 Method for drilling wellbores from an offshore platform |
| 07/21/1983 | WO1983002480A1 Inhibiting the formation of insoluble precipitates in a crude oil sulfonation product |
| 07/21/1983 | WO1983002402A1 A method of extracting gas from liquid |
| 07/20/1983 | EP0083995A2 Vertical drip separator apparatus and method |
| 07/20/1983 | EP0083974A1 A process for the production of sintered spheres |
| 07/20/1983 | EP0083646A1 Self-inverting water-in-oil emulsions of water-soluble polymers and a process for preparing the emulsions |
| 07/19/1983 | US4393946 Well perforating apparatus |
| 07/19/1983 | US4393937 Olefin sulfonate-improved steam foam drive |
| 07/19/1983 | US4393936 Method for the enhanced recovery of oil and natural gas |