| 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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| 09/19/2007 | CN101037934A Magnetic force oil pumping machine |
| 09/19/2007 | CN100338334C Oil field oil-water well unblocking and injection increasing method and the apparatus for implementing the same method |
| 09/18/2007 | US7271133 comprise water, a water soluble hydrophobically modified gelling agent polymer eg cellulose; increased radiuses of gyration |
| 09/18/2007 | US7270704 Mixture for fabrication of fireproof high-strength spherical granules and the method of their manufacture |
| 09/18/2007 | US7270188 Radial expansion of tubular members |
| 09/18/2007 | US7270187 Flying valve and well production method |
| 09/18/2007 | US7270186 Downhole well pump |
| 09/18/2007 | US7270185 Drilling system and method for controlling equivalent circulating density during drilling of wellbores |
| 09/18/2007 | US7270184 Method of well treatment |
| 09/18/2007 | US7270181 Downhole surge pressure reduction and filtering apparatus |
| 09/18/2007 | US7270180 Controlling inorganic scale of zinc sulfide or iron sulfide in a subterranean formation or wellbore, by pumping downhole a copolymer comprising a quaternary ammonium salt and an acrylamide unit; well completion; copolymer of acrylamide and diallyldimethylammonium salt and possibly acrylic acid or salt |
| 09/18/2007 | US7270179 Method for stimulation of liquid flow in a well |
| 09/18/2007 | US7270178 Horizontally oriented gas separator |
| 09/18/2007 | US7270177 Instrumented packer |
| 09/18/2007 | CA2439601C Controlled wellhead buoy |
| 09/18/2007 | CA2403980C Method and apparatus for flow measurement |
| 09/18/2007 | CA2393504C Flow control in a wellbore |
| 09/18/2007 | CA2363909C Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking |
| 09/18/2007 | CA2334115C A device and method for regulating fluid flow in a well |
| 09/18/2007 | CA2247838C Downhole oil/water separation system with solids separation |
| 09/15/2007 | CA2581586A1 Extraction of bitumen from oil sands using lime |
| 09/13/2007 | WO2007102743A1 A treatment method for drill cuttings from petroleum wells |
| 09/13/2007 | WO2007102079A1 A method and a system for feedback control or monitoring of an oil or gas production system and computer program product |
| 09/13/2007 | WO2007102023A1 Tracer method and apparatus |
| 09/13/2007 | WO2007101444A2 System for injecting a substance into the space surrounding a well tubular |
| 09/13/2007 | WO2007041823A8 Method and system for optimizing downhole fluid production |
| 09/13/2007 | US20070213233 Diverting compositions, fluid loss control pills, and breakers thereof |
| 09/13/2007 | US20070213232 Viscoelastic Surfactant Gels With Reduced Salt Concentration |
| 09/13/2007 | US20070209801 Downhole draw down pump and method |
| 09/13/2007 | US20070209800 Tubing driven progressing cavity pump |
| 09/13/2007 | US20070209799 In situ recovery from a hydrocarbon containing formation |
| 09/13/2007 | US20070209797 System for injecting a substance into an annular space |
| 09/13/2007 | US20070209795 Method of using lightweight polyamides in hydraulic fracturing and sand control operations |
| 09/13/2007 | CA2643686A1 A method and a system for feedback control or monitoring of an oil or gas production system and computer program product |
| 09/13/2007 | CA2636988A1 Tracer method and apparatus |
| 09/12/2007 | EP1832711A1 Method for modelling and simulation on a larger scale of the stimulation of the hydrocarbon wells |
| 09/12/2007 | EP1194497B1 Water based wellbore fluids |
| 09/12/2007 | CN200946565Y Horsehead telescopic device for pumping unit |
| 09/12/2007 | CN200946562Y Three-stage speed-reducing drive device of screw pump |
| 09/12/2007 | CN200946503Y Experimental perforating target for emulating downhole perforating condition |
| 09/12/2007 | CN200946502Y Rod type monitoring indicator |
| 09/12/2007 | CN200946500Y Flow gauge built-up type downhole measuring and regulation instrument |
| 09/12/2007 | CN200946498Y Hollow solid discharging-assistant agent |
| 09/12/2007 | CN200946497Y Downhole oil extraction pipe string for gas drive oil well |
| 09/12/2007 | CN200946496Y Sand preventing screen pipe for oil well |
| 09/12/2007 | CN200946495Y Slant-pull double side position-moving type vertical pumping unit |
| 09/12/2007 | CN200946494Y Integral monitor system for safety of pumping unit |
| 09/12/2007 | CN200946493Y Ground direct-transmission type lifting device for pumping well |
| 09/12/2007 | CN200946492Y Double well hydraulic oil pump unit |
| 09/12/2007 | CN200946491Y Indirect-pull type pumping unit |
| 09/12/2007 | CN200946490Y Indirect-pull type pumping unit bracket assembly |
| 09/12/2007 | CN200946489Y Elastic balance small size energy-saving pumping unit |
| 09/12/2007 | CN200946488Y Elastic balancer of pumping unit |
| 09/12/2007 | CN200946487Y Hydraulic pumping device |
| 09/12/2007 | CN200946486Y Hydraulic type downhloe movement-increasing instrument for petroleum pumping unit pumping rod |
| 09/12/2007 | CN200946468Y Rope hanger of pumping unit |
| 09/12/2007 | CN101035986A Numerically controlled reciprocating submersible pump apparatus |
| 09/12/2007 | CN101035964A Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents |
| 09/12/2007 | CN101033686A Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke |
| 09/12/2007 | CN101033685A Combined removing plug by acid technology of oil well |
| 09/12/2007 | CN101033684A Mechanical plug-removal oil extraction device |
| 09/12/2007 | CN101033683A Stem-injection technique for oil recovery by heat |
| 09/12/2007 | CN101033682A Lever balance head sheave long stroke pumping unit |
| 09/12/2007 | CN100337035C Linear dynamo pumping unit with built-in stator |
| 09/12/2007 | CN100337034C Hydraulic oil pump |
| 09/12/2007 | CN100337033C Rodless hydraulic oil pumping system |
| 09/12/2007 | CN100337011C Method for extracting mirabilite ore deposit by using drilling water soluble oil pad process |
| 09/11/2007 | US7268101 Dilution of hydratable guar gum; for forming high viscosity well treating fluid |
| 09/11/2007 | US7268100 Shale inhibition additive for oil/gas down hole fluids and methods for making and using same |
| 09/11/2007 | US7267175 Apparatus and methods for forming a lateral wellbore |
| 09/11/2007 | US7267172 Cemented open hole selective fracing system |
| 09/11/2007 | US7267171 Methods and compositions for stabilizing the surface of a subterranean formation |
| 09/11/2007 | US7267170 Self-degrading fibers and associated methods of use and manufacture |
| 09/11/2007 | US7267169 Methods for forming a permeable and stable mass in a subterranean formation |
| 09/11/2007 | CA2478885C Method and apparatus for injecting steam into a geological formation |
| 09/11/2007 | CA2343827C Method and system for separating and injecting gas and water in a wellbore |
| 09/11/2007 | CA2335737C Recovery of heavy hydrocarbons by in-situ hydrovisbreaking |
| 09/11/2007 | CA2277528C Enhanced oil recovery methods |
| 09/08/2007 | CA2580296A1 Method of using lightweight polyamides in hydraulic fracturing and sand control operations |
| 09/07/2007 | WO2007100352A1 Borehole seismic pulse generation using rapid-opening valve |
| 09/07/2007 | WO2007098606A1 Liquified petroleum gas fracturing system |
| 09/07/2007 | WO2007082109A9 Interference-seal plunger for an artificial lift system |
| 09/07/2007 | WO2007081577A3 Method to detect low salinity injection water encroachment into oil formations |
| 09/07/2007 | WO2007053190A9 Low debris perforating gun system for oriented perforating |
| 09/07/2007 | CA2838468A1 Well planning system and method |
| 09/07/2007 | CA2644225A1 Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
| 09/07/2007 | CA2644027A1 Liquified petroleum gas fracturing system |
| 09/07/2007 | CA2621855A1 Borehole seismic pulse generation using rapid-opening valve |
| 09/06/2007 | US20070207933 Treatment fluids comprising friction reducers and antiflocculation additives and associated methods |
| 09/06/2007 | US20070205001 Expandable Tubular |
| 09/06/2007 | US20070204996 Fracturing a subterranean formation using an aqueous treatment fluid including a friction-reducing cationic polymer and an oxidizer as an anticoagulant (crosslinking, gelation inhibition) to prevent flocculation in the well bore; drilling,completion, stimulation fluids; oil wells; efficiency |
| 09/06/2007 | US20070204992 Polyurethane proppant particle and use thereof |
| 09/06/2007 | US20070204991 Liquified petroleum gas fracturing system |
| 09/06/2007 | US20070204990 Well Treatment |
| 09/06/2007 | US20070204989 Preformed particle gel for conformance control in an oil reservoir |
| 09/06/2007 | US20070204988 Piston-type water pump |
| 09/06/2007 | CA2550883A1 Anchoring device for casing procedures in wellbores |
| 09/05/2007 | EP1828659A2 Expandable threaded connection |
| 09/05/2007 | EP1828538A2 Method and apparatus for fluid bypass of a well tool |
| 09/05/2007 | EP1828537A2 Method and apparatus to hydraulically bypass a well tool |