| 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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| 09/22/2005 | US20050205256 Method and apparatus for downhole fluid analysis for reservoir fluid characterization |
| 09/22/2005 | US20050205254 Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 09/22/2005 | US20050205253 Apparatus for expanding a tubular member |
| 09/22/2005 | US20050205249 Apparatus and method for driving submerged pumps |
| 09/22/2005 | US20050204528 Method to reduce the width of a slot in a pipe or tube |
| 09/22/2005 | CA2559012A1 Dual cone expander for expanding a tubular element to different diameters |
| 09/22/2005 | CA2559008A1 Duplex cone expander for expanding a tubular upward and downward from preexpanded section |
| 09/22/2005 | CA2537242A1 Expandable tubular |
| 09/21/2005 | EP1576253A2 Method using particulate chelates to stimulate production of petroleum in carbonate formations |
| 09/21/2005 | EP1109974B1 Well riser lateral restraint and installation system for offshore platform |
| 09/21/2005 | CN2727450Y Integral tube type sand prevention oil-well pump |
| 09/21/2005 | CN2727448Y Motor regulator for pumping unit |
| 09/21/2005 | CN2727447Y 抽稠油泵 Pumping heavy oil |
| 09/21/2005 | CN2727395Y High temperature high pressure optical waveguide well logging system |
| 09/21/2005 | CN2727392Y Downhole measuring and regulating apparatus with an overhead flowmeter |
| 09/21/2005 | CN2727391Y Separator for measuring water ratio of oil well |
| 09/21/2005 | CN2727390Y Downhole double layer splitter for oil field |
| 09/21/2005 | CN2727389Y Gravitational toggle oil drainer |
| 09/21/2005 | CN2727388Y Perforating gun for petroleum pumping installation |
| 09/21/2005 | CN2727387Y Drum type pumping unit |
| 09/21/2005 | CN2727386Y Walking beam pumping unit with double acting wheels |
| 09/21/2005 | CN1672032A In-situ detection and analysis of coal bed methane formations with optical instruments and methods and apparatus to facilitate methane production and analysis |
| 09/21/2005 | CN1671945A Method of hydraulic fracture of subterranean formation |
| 09/21/2005 | CN1671944A Installation and use of removable heaters in a hydrocarbon containing formation |
| 09/21/2005 | CN1671943A Method for construction and completion of injection wells |
| 09/20/2005 | US6947870 Neural network model for electric submersible pump system |
| 09/20/2005 | US6945762 Mechanically actuated gas separator for downhole pump |
| 09/20/2005 | US6945330 Slickline power control interface |
| 09/20/2005 | US6945329 providing fluid that comprises compacted particulate material and foam within pore spaces of particulate material, foam comprising pressurized gas and liquid solution of foam forming surfactant; pumping material into subterranean well bore |
| 09/20/2005 | CA2347895C Expandable patch for a wellbore tubular |
| 09/15/2005 | WO2005085590A1 System and method for optimizing production in a artificially lifted well |
| 09/15/2005 | WO2005085589A1 System and method for optimizing production in an artificially lifted well |
| 09/15/2005 | WO2005085588A1 Annular pressure relief collar |
| 09/15/2005 | WO2005085580A1 A method and device for establishing an underground well |
| 09/15/2005 | WO2005085395A1 Use of field gas for pre-refining conventional crude oil into a pre-refined asphaltenes-free oil refinery feedstock pa and a liquid residual oil refinery feedstock pb |
| 09/15/2005 | WO2005085361A2 Networked polymeric gels and use of such polymeric gels in hydrocarbon recovery |
| 09/15/2005 | WO2005045175A3 Downhole fiber optic wet connect and gravel pack completion |
| 09/15/2005 | WO2004023014B1 Threaded connection for expandable tubulars |
| 09/15/2005 | US20050202978 Drilling or fructuring fluid containing an oleaginous fluid ( diesel oil, cude oil, paraffin oil, olefin etc.) a fluid ( water, fresh or brine, glycerol, polyetheramine) that is partially immiscible with the oleaginous fluid, and emulsion facilitating particles; treating the subterranean formation |
| 09/15/2005 | US20050202977 Drilling or fructuring fluid containing an oleaginous fluid ( diesel oil, cude oil, paraffin oil, olefin etc.) a fluid ( water, fresh or brine, glycerol, polyetheramine) that is partially immiscible with the oleaginous fluid, and emulsion facilitating particles; treating the subterranean formation |
| 09/15/2005 | US20050200127 Joining Tubular Members |
| 09/15/2005 | US20050199396 reducing a well bore's permeability to aqueous fluids without affecting hydrocarbon permeability by treating with a hydrophobically modified water-soluble polymer whose backbone contains polar heteroatoms; modified dimethylaminoethyl methacrylate copolymer |
| 09/15/2005 | US20050199395 Oil recovery method using alkali and alkylaryl sulfonate surfactants derived from broad distribution alpha-olefins |
| 09/15/2005 | US20050199391 System and method for optimizing production in an artificially lifted well |
| 09/15/2005 | US20050199387 Method for enhancing oil production using electricity |
| 09/15/2005 | US20050199386 In situ processing of hydrocarbon-bearing formations with variable frequency automated capacitive radio frequency dielectric heating |
| 09/15/2005 | US20050199385 Connector for expandable well screen |
| 09/15/2005 | CA2559140A1 A method and device for establishing an underground well |
| 09/15/2005 | CA2558055A1 Compositions and methods for controlling unconsolidated particulates |
| 09/15/2005 | CA2557710A1 Use of field gas for pre-refining conventional crude oil into a pre-refined asphaltenes-free oil refinery feedstock pa and a liquid residual oil refinery feedstock pb |
| 09/14/2005 | EP1573170A1 Method and system for circulating fluid in a well system |
| 09/14/2005 | EP1379756A4 Method for pumping fluids |
| 09/14/2005 | EP1313665A4 Web-based system and method for evaluating oil and gas properties |
| 09/14/2005 | CN2725637Y External speed changing electric rotary drum |
| 09/14/2005 | CN2725575Y Portable brake linkage device |
| 09/14/2005 | CN2725574Y Hydraulic oil extraction machine |
| 09/14/2005 | CN2725573Y Hydraulic driven rodless pump device |
| 09/14/2005 | CN2725571Y Friction type intelligent oil pumping machine |
| 09/14/2005 | CN2725570Y Deep pumping oil extraction pump |
| 09/14/2005 | CN2725526Y Oil field filling movable centralized control working station |
| 09/14/2005 | CN2725523Y Composite sand control pipe |
| 09/14/2005 | CN2725522Y Self-speed changing energy-saving oil pumping machine |
| 09/14/2005 | CN2725521Y Oil pumping rod anti eccentric wear release proof rotator |
| 09/14/2005 | CN2725520Y 抽油机 Pumping |
| 09/14/2005 | CN2725519Y Intelligent external assembled type speed changing electric rotary drum oil pumping machine |
| 09/14/2005 | CN2725518Y Rod less hydraulic oil pumping system |
| 09/14/2005 | CN2725515Y Packer used for deep well pressure cracking |
| 09/14/2005 | CN2725504Y Rough braid detwisting apparatus |
| 09/14/2005 | CN2725362Y Noise reducing ventilution device of oceaneering well drilling platform |
| 09/14/2005 | CN1668828A Stimulation and injection system |
| 09/14/2005 | CN1667274A Rodless hydraulic oil pumping unit |
| 09/14/2005 | CN1667273A Hollow oil-well pump |
| 09/14/2005 | CN1667242A Swabbing technology for viscous oil and high condensation oil |
| 09/14/2005 | CN1667241A Symbolic gas detecting, regulating and controlling method for underground coal gasification |
| 09/14/2005 | CN1667240A Flexible transmission beam-pumping unit |
| 09/14/2005 | CN1667237A Tubing anchor |
| 09/13/2005 | US6943340 Method and apparatus of providing an optical fiber along a power supply line |
| 09/13/2005 | US6942192 Gate valve with flow-through gate |
| 09/13/2005 | US6942036 Treating apparatus and method for expandable screen system |
| 09/13/2005 | US6942034 Extent of detonation determination method using seismic energy |
| 09/13/2005 | US6942033 Optimizing charge phasing of a perforating gun |
| 09/13/2005 | US6942031 decreases adsorption of the foaming agent within the hydrocarbon reservoir; injecting into the formation to sweep the hydrocarbons towards a production well for recovery |
| 09/13/2005 | US6942030 Three-dimensional well system for accessing subterranean zones |
| 09/13/2005 | US6942029 Tubing expansion |
| 09/13/2005 | US6941871 Faceted expansion relief perforating device |
| 09/13/2005 | US6941652 Methods of fabricating a thin-wall expandable well screen assembly |
| 09/13/2005 | CA2327920C Apparatus and method for simultaneous drilling and casing wellbores |
| 09/13/2005 | CA2251611C Installation for pumping a two-phase liquid/gas effluent |
| 09/13/2005 | CA2242024C An apparatus and a method for reducing an oxygen content in a boiler exhaust gas |
| 09/09/2005 | WO2005083228A1 Connection system for subsea flow interface equipment |
| 09/09/2005 | WO2005083029A1 Orthoester compositions and methods for reducing the viscosity of viscosified treatment fluids |
| 09/09/2005 | WO2005083026A2 Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids |
| 09/09/2005 | WO2005081803A2 Lubricant coating for expandable tubular members |
| 09/09/2005 | CA2500029A1 Joining tubular members |
| 09/08/2005 | US20050196481 Tool bodies having heated tool faces |
| 09/08/2005 | US20050196243 Riser apparatus assembly and method of installing same |
| 09/08/2005 | US20050196242 Compensating suspension element configuration |
| 09/08/2005 | US20050194322 separate cuttings from drilling slurry; addition of a flocculating agent to a slurry stream to form agglomerated solids; to both send a more dense mass of solids to the centrifuges and block separated fluids from ever reaching the centrifuges; minimize water reaching the centrifuges |
| 09/08/2005 | US20050194188 Method of drilling and completing multiple wellbores inside a single caisson |
| 09/08/2005 | US20050194181 Perforating gun assembly and method for enhancing perforation depth |