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)
11/2000
11/02/2000WO2000065196A1 Deliberate fluid removal by capillary imbibition
11/02/2000WO2000065195A1 Casing conveyed perforating process and apparatus
11/02/2000EP1048820A2 Method for exploiting geothermal energy and heat exchanger apparatus therefor
11/02/2000EP1047861A1 Method for injecting of foamed concrete and a foamed concrete
11/02/2000DE10005799A1 Brunnen-Kopfende Fountain-head of
11/01/2000CN2403894Y Underground steam dryness and temperature sampling tester
11/01/2000CN2403893Y Oilwell sand-filtering and -removing apparatus
11/01/2000CN2403890Y Telescopic packer
10/2000
10/31/2000US6139644 Method and equipment for launching pigs into undersea pipes
10/31/2000US6138765 Packer assembly for use in a submergible pumping system
10/31/2000US6138763 Method for pumping a fluid
10/31/2000US6138761 Apparatus and methods for completing a wellbore
10/31/2000US6138758 Method and apparatus for downhole hydro-carbon separation
10/31/2000US6138753 Technique for treating hydrocarbon wells
10/31/2000US6138750 Water well stagnant bottom rehabilitation means and method
10/29/2000CA2270703A1 A process for non-thermal vapor extraction of viscous oil from a hydrocarbon reservoir using a vertical well configuration
10/29/2000CA2270503A1 Method of completing and producing hydrocarbons in a well
10/26/2000WO2000063530A1 Downhole separator for use in a subterranean well and method
10/26/2000WO2000063529A1 Carbon dioxide pump and pumping system
10/26/2000WO2000063520A1 Packer
10/26/2000WO2000063519A2 Satellite separator platform (ssp)
10/26/2000WO2000063127A1 Method of aquifer remediation
10/26/2000WO2000037767A3 Profile formation
10/26/2000CA2536620A1 Expandable connector for borehole tubes
10/25/2000EP1046780A1 Method of enhanced hydrocarbon production by injection of a liquid and gaseous phase at least partially miscible with water
10/25/2000CN2402829Y Hydraulic driven pumping unit without beam and tower
10/25/2000CN2402801Y Oil drain oil pipe anchor
10/25/2000CN2402795Y High-temp. thermal insulation centralizer
10/25/2000CN1271054A Hot smelting exploitation technology to raise the concentration of exploited bittern and prevent accumulation of sodium chloride
10/25/2000CN1057814C Anti-sand process technology for loose sand formation
10/24/2000US6135670 Polished rod clamp
10/24/2000US6135210 Well completion system employing multiple fluid flow paths
10/24/2000US6135209 Method for installing a water well pump
10/24/2000US6135208 Expandable wellbore junction
10/24/2000US6135206 Apparatus for completing a subterranean well and associated methods of using same
10/24/2000US6135205 Apparatus for and method of hydraulic fracturing utilizing controlled azumith perforating
10/23/2000CA2305946A1 Process for assisted recovery of hydrocarbons by combined injection of an aqueous phase and gas at least partially miscible in water
10/19/2000WO2000061915A1 Method of creating a wellbore in an underground formation
10/19/2000WO2000061914A1 Method for annular sealing
10/19/2000WO2000061913A1 Well screen having an internal alternate flowpath
10/19/2000WO2000061908A1 Method of selective plastic expansion of sections of a tubing
10/19/2000WO2000061310A1 Process for the manufacture of a cylindrical pipe
10/19/2000DE19915623A1 Rotary piston machine used with drilling equipment has intermediate piston mounted on same shaft as primary pistons and on same axis, and has two-sided curvilinear working faces and inclined working ports
10/19/2000CA2369266A1 Process for the manufacture of a cylindrical pipe
10/18/2000EP1044333A1 Submersible pump for use in a bore hole
10/18/2000EP1044316A1 Method for drilling and completing a hydrocarbon production well
10/18/2000EP0888489A4 Hydrocarbon recovery method using inverted production wells
10/18/2000CN2401710Y Pressure reducer for oil well
10/18/2000CN2401709Y Work state intelligent monitoring instrument for oil well pump
10/18/2000CN2401694Y Hole top water treatment device for water injection well
10/18/2000CN2401693Y Energy source temp. potential converting type heater by utilizing waste heat of reinjected waste water in oil production
10/17/2000US6131662 Methods of completing wells utilizing wellbore equipment positioning apparatus
10/17/2000US6131660 Dual injection and lifting system using rod pump and an electric submersible pump (ESP)
10/17/2000US6131655 Apparatus and methods for downhole fluid separation and control of water production
10/12/2000DE4491017C2 Verfahren zur Fertigstellung eines Bohrlochs unter Einbringen einer Kiesschüttung neben einer Formation in dem Bohrloch A method for completing a well under introducing a gravel next to a formation in the wellbore
10/12/2000DE10008599A1 Bohrloch-Auskleidungsaufhängung Borehole liner hanger
10/11/2000EP1042708A1 Fluidic level control systems
10/11/2000EP1042613A1 Submersible pump assembly for use in a well
10/11/2000EP1042587A4 System for drilling and completing multilateral wells
10/11/2000EP1042587A1 System for drilling and completing multilateral wells
10/11/2000EP1042586A1 Drive head for a rotary-driven rod assembly, especially for driving a sand pump
10/11/2000EP1042583A1 Apparatus and method for injecting treatment fluids into an underground formation
10/11/2000EP0840836B1 System for controlling production from a gaz-lifted oil well
10/11/2000CN2400601Y Five-connecting-rod beam-pumping unit
10/11/2000CN1269732A Well casing assembly with wear protection inner tube
10/11/2000CN1269454A Equipotential energy machine oil expoiting technology utilizing double oil wells and no pumping unit
10/11/2000CN1057365C Long-passage and large-section underground coal gasifying technology in mine
10/10/2000US6129150 Method and equipment for offshore oil production by intermittent gas injection
10/10/2000US6129148 Method for viscosity reduction of clogging hydrocarbons in oil well
10/05/2000WO2000058604A1 Method and system for testing a borehole by the use of a movable plug
10/05/2000WO2000058603A1 Method and apparatus for wellbore gas separation
10/05/2000WO2000058601A1 Wellbore packer
10/05/2000WO2000058599A1 Method of and apparatus for horizontal well drilling
10/05/2000WO2000058564A1 Method and device for the collection of underwater spills and for covering the sea bed
10/04/2000EP1041244A2 Methods of downhole testing subterranean formations and associated apparatus therefor
10/04/2000EP1041243A2 Downhole gas-liquid separator with gas compression
10/04/2000EP1041241A2 Apparatus and method for gravel packing or fracturing wells
10/04/2000EP0939854B1 Connector for an expandable tubing string
10/04/2000CN2399531Y Hydraulic feedback anti-sand pump for flexible continuous sucker rod
10/04/2000CN2399530Y Ring drainage electrical underwater screw pump oil extracting unit
10/04/2000CN2399529Y Long stroke gearing reversing device beam-pumping unit
10/03/2000US6126416 Adjustable shroud for a submergible pumping system and pumping system incorporating same
10/03/2000US6125946 Perforating gun
10/03/2000US6125937 Methods of completing a subterranean well and associated apparatus
10/03/2000US6125936 Dual completion method for oil/gas wells to minimize water coning
10/03/2000US6125933 Formation fracturing and gravel packing tool
10/03/2000US6125932 Tortuous path sand control screen and method for use of same
10/03/2000US6125931 Right angle drive adapter for use with a vertical drive head in an oil well progressing cavity pump drive
10/03/2000US6125698 System and process for optimizing gravity gradiometer measurements
10/03/2000CA2176588C Method for disposing carbon dioxide in a coalbed and simultaneously recovering methane from the coalbed
09/2000
09/30/2000CA2303465A1 Gelled hydrocarbon compositions and methods for use thereof
09/28/2000WO2000057022A1 Method for treatment of underground reservoirs
09/28/2000WO2000057021A1 Radio frequency steam flood and gas drive for enhanced subterranean recovery
09/28/2000CA2368077A1 Radio frequency steam flood and gas drive for enhanced subterranean recovery
09/27/2000EP1038087A1 Assembly and process for drilling and completing multiple wells
09/27/2000CN2398442Y Negative-pressure pulse deep well oil production pump device
09/27/2000CN2398423Y Double-deck water distribution core for water injection well
09/27/2000CN2398421Y Energy-saving generator for oil extraction
09/27/2000CN2398420Y Hydraulic spiral-flow grit catcher
09/27/2000CN1268255A Producing electrical energy from natural gas using a solid oxide fuel cell
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