| 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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| 06/28/2007 | WO2007073198A1 A method and a device for destructing organic material in injection water and use of injection water for generation of destructive hydroxyl radicals |
| 06/28/2007 | WO2007073195A1 Pump unit and method for pumping a well fluid |
| 06/28/2007 | WO2007072173A1 Method and system for monitoring the incursion of particulate material into a well casing within hydrocarbon bearing formations including gas hydrates |
| 06/28/2007 | WO2007072172A1 Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates |
| 06/28/2007 | WO2007072171A1 Method and system for tool orientation and positioning and particulate material protection within a well casing for producing hydrocarbon bearing formations including gas hydrates |
| 06/28/2007 | WO2007071664A1 System and method for separating a fluid stream |
| 06/28/2007 | WO2007071624A1 External protection for expanding tubular threaded joints |
| 06/28/2007 | WO2007071203A1 A high-temperature and high-pressure combustion system of sub-critical compound heat carrier generator |
| 06/28/2007 | WO2007035707A3 Well cement formulations for increased drilling hardness |
| 06/28/2007 | WO2007027617A3 Inflow control device with passive shut-off feature |
| 06/28/2007 | WO2007024627A3 Sand control screen assembly enhanced with disappearing sleeve and burst disc |
| 06/28/2007 | WO2007018844A3 Spontaneous superficial fluid recovery from hydrocarbon formations |
| 06/28/2007 | WO2006083497A3 Pumping system and method for recovering fluid from a well |
| 06/28/2007 | WO2006075337A3 Apparatus and method for monitoring remotely located sucker rod pumps |
| 06/28/2007 | WO2006017805A8 Expandable injector pipe |
| 06/28/2007 | US20070144908 Subsea production system |
| 06/28/2007 | US20070144785 Separating mixtures of oil and water |
| 06/28/2007 | US20070144784 Method for drilling and lining a wellbore |
| 06/28/2007 | US20070144747 Coal bed pretreatment for enhanced carbon dioxide sequestration |
| 06/28/2007 | US20070144744 Valve apparatus with seal assembly |
| 06/28/2007 | US20070144742 Method of generating stable foam for oil and gas well cleanouts |
| 06/28/2007 | US20070144738 Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates |
| 06/28/2007 | US20070144736 Low density proppant particles and use thereof |
| 06/28/2007 | US20070143987 Method and Apparatus for Forming a Mono-Diameter Wellbore Casing |
| 06/28/2007 | CA2633747A1 Method and system for monitoring the incursion of particulate material into a well casing within hydrocarbon bearing formations including gas hydrates |
| 06/28/2007 | CA2633746A1 Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates |
| 06/28/2007 | CA2633745A1 Method and system for tool orientation and positioning and particulate material protection within a well casing for producing hydrocarbon bearing formations including gas hydrates |
| 06/28/2007 | CA2633728A1 External protection for expanding tubular threaded joints |
| 06/27/2007 | EP1801346A1 Process for carbon dioxide sequestration by injection in coal seams |
| 06/27/2007 | EP1799962A2 Sintered spherical pellets |
| 06/27/2007 | EP1799961A1 Improved hanging apparatus and method |
| 06/27/2007 | EP1506343B1 System for treating an underground formation |
| 06/27/2007 | CN2917072Y Cup type silt-proof submerged linear motor |
| 06/27/2007 | CN2916190Y Multi-valve sand-prevention electro-submersible plunger pump |
| 06/27/2007 | CN2916187Y Hydraulic pressure-transmissible oil well pump |
| 06/27/2007 | CN2916124Y Wellhead crude oil recovering device |
| 06/27/2007 | CN2916123Y Combined ventilation type sound-insulation shield |
| 06/27/2007 | CN2916122Y Antifreezing hot blast device |
| 06/27/2007 | CN2916105Y Actively-retractable type high-temperature tubing string anchoring device |
| 06/27/2007 | CN1989313A Alkylxylene sulfonates for enhanced oil recovery processes |
| 06/27/2007 | CN1989312A A method and a device for expanding a body under overpressure |
| 06/27/2007 | CN1989218A Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes |
| 06/27/2007 | CN1988971A Process for stimulating production of hydrogen from petroleum in subterranean formations |
| 06/27/2007 | CN1988970A Process for stimulating production of methane from petroleum in subterranean formations |
| 06/27/2007 | CN1988942A Plant for separating a mixture of oil, water and gas |
| 06/27/2007 | CN1987044A Method for adding hydraulic fractured well gel breaker |
| 06/27/2007 | CN1987043A Method for producing oil by injecting air buffering catalytic oxidation of thick oil |
| 06/27/2007 | CN1987042A Method for increasing oil pumping machine load utilization efficiency and torque utilization efficiency of low osmosis oil field |
| 06/27/2007 | CN1987041A Method and device for drilling four tube liquid pad selective thermal melting producing potassium salt mine |
| 06/27/2007 | CN1323222C Process and device for recovery of oil from natural oil reservoir |
| 06/27/2007 | CN1323221C Steel pipe for use as embedded expandedpipe, and method of embedding oil-well steel pipe |
| 06/26/2007 | US7234543 Systems and methods for directionally drilling a borehole using a continuously variable transmission |
| 06/26/2007 | US7234532 Expansion apparatus and method |
| 06/26/2007 | US7234531 Mono-diameter wellbore casing |
| 06/26/2007 | US7234529 Flow switchable check valve and method |
| 06/26/2007 | US7234527 System and method for fail-safe disconnect from a subsea well |
| 06/26/2007 | US7234526 Method of forming a sealed wellbore intersection |
| 06/26/2007 | US7234525 Automated chemical stick loader for gas wells and method of loading |
| 06/26/2007 | US7234524 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| 06/26/2007 | US7234520 Well jet device for testing and studying formations and the operating method thereof |
| 06/26/2007 | US7234518 Adjustable well screen assembly |
| 06/26/2007 | US7234517 System and method for sensing load on a downhole tool |
| 06/26/2007 | CA2402623C Template and system of templates for drilling and completing offsite well bores |
| 06/26/2007 | CA2399071C Controlling activation of devices |
| 06/26/2007 | CA2260519C Sealed lateral wellbore junction assembled downhole |
| 06/26/2007 | CA2254221C Method and apparatus for heating viscous fluids in a well |
| 06/26/2007 | CA2203349C Stable breaker-crosslinker-polymer complex and method of use in completion and stimulation |
| 06/26/2007 | CA2181208C Method for vertically extending a well |
| 06/21/2007 | WO2007070507A2 Flexible sinker bar with electrically conductive wires |
| 06/21/2007 | WO2007070400A1 Sea bed fluids evacuation bag apparatus |
| 06/21/2007 | WO2007070305A2 Downhole hydraulic pipe cutter |
| 06/21/2007 | WO2007069904A1 A method and an apparatus for separation and injection of water from a water- and hydrocarbon-containing outflow down in a production well |
| 06/21/2007 | WO2007069201A2 System and method for treatment of a well |
| 06/21/2007 | WO2007068880A1 Centrifugal blending system |
| 06/21/2007 | WO2007068682A1 Enhanced oil recovery process and a process for the sequestration of carbon dioxide |
| 06/21/2007 | WO2007068397A1 Methods and apparatus for well construction |
| 06/21/2007 | US20070138101 Method of reclaiming brine solutions using an organic chelant |
| 06/21/2007 | US20070137862 Centrifugal blending system |
| 06/21/2007 | US20070137860 System and method for treatment of a well |
| 06/21/2007 | US20070137858 Method for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids |
| 06/21/2007 | US20070137857 Low temperature monitoring system for subsurface barriers |
| 06/21/2007 | US20070137856 Double barrier system for an in situ conversion process |
| 06/21/2007 | US20070137852 Apparatus for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids |
| 06/21/2007 | US20070137826 Creating a well abandonment plug |
| 06/21/2007 | US20070137291 Tubing expansion |
| 06/21/2007 | CA2633938A1 A method and an apparatus for separation and injection of water from a water- and hydrocarbon-containing outflow down in a production well |
| 06/21/2007 | CA2632786A1 Methods and apparatus for well construction |
| 06/20/2007 | EP1798370A1 Methods and apparatus for well construction |
| 06/20/2007 | EP1798369A2 Deformable seal (DIV II) |
| 06/20/2007 | EP1797281A2 Method of estimating fracture geometry, compositions and articles used for the same |
| 06/20/2007 | EP1797280A2 Perforation alignement tool for jet drilling, perforating and cleaning |
| 06/20/2007 | EP1797279A2 Downhole safety valve apparatus and method |
| 06/20/2007 | EP1797278A2 Expansion pig |
| 06/20/2007 | CN2914152Y Intelligent oil extraction controller |
| 06/20/2007 | CN2913676Y Automatic torque-change pumping unit |
| 06/20/2007 | CN2913612Y Well bore enclosed type coal bed air extraction well |
| 06/20/2007 | CN2913602Y Experimental perforating butt and experimental perforating tool for simulating down-hole perforating conditions |
| 06/20/2007 | CN2913601Y Oil-gas-water-sand four-phase separator |
| 06/20/2007 | CN2913600Y Medium pressure steam-injection boiler |
| 06/20/2007 | CN2913599Y Water distribution barrel |