| 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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| 04/13/2006 | US20060076147 Methods and apparatus for manufacturing of expandable tubular |
| 04/13/2006 | US20060076145 Gas lift using a gas/oil mixer |
| 04/13/2006 | US20060076144 Method and apparatus for storing energy and multiplying force to pressurize a downhole fluid sample |
| 04/13/2006 | US20060076143 Oil anchor |
| 04/13/2006 | US20060076142 Device for actuating a reciprocating recovery means for underground fluid |
| 04/13/2006 | US20060076140 Gas Lift Apparatus and Method for Producing a Well |
| 04/13/2006 | US20060076139 Apparatus and Method for Increasing Well Production Using Surfactant Injection |
| 04/13/2006 | US20060076138 Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations |
| 04/13/2006 | US20060076137 Perforation alignment tool for jet drilling, perforating and cleaning |
| 04/13/2006 | US20060076134 Well stimulation |
| 04/13/2006 | US20060076133 One trip liner conveyed gravel packing and cementing system |
| 04/13/2006 | US20060076131 Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life |
| 04/13/2006 | CA2624791A1 A process for consolidating a formation |
| 04/13/2006 | CA2583291A1 Improved hanging apparatus and method |
| 04/13/2006 | CA2522416A1 Gas lift using a gas/oil mixer |
| 04/12/2006 | EP1644610A1 A well screen |
| 04/12/2006 | EP1644609A2 Method of thermally insulating pipes |
| 04/12/2006 | EP1644458A1 Method for stimulating hydrocarbon production and reducing the production of water from a subterranean formation |
| 04/12/2006 | EP1404945B1 Expandable wellbore stabiliser |
| 04/12/2006 | EP1295035B1 Isolation container for a downhole electric pump |
| 04/12/2006 | CN2771517Y Counter-flow-proof oil nozzle |
| 04/12/2006 | CN2771515Y Protective pump line equipment for electric oil-submersible pump production opreation |
| 04/12/2006 | CN2771478Y Fully-automatic weighing gas-liquid two-phase oil well metering device |
| 04/12/2006 | CN2771475Y Superstrong wax-proof viscosity reducing oil increasing device |
| 04/12/2006 | CN2771474Y Wax-proof viscosity-reducing oil-increasing device |
| 04/12/2006 | CN2771473Y Thick oil well hollow sucker rod steam-injection heating production device |
| 04/12/2006 | CN2771472Y High temperature snubbing steam driving wallhead device |
| 04/12/2006 | CN2771471Y Oil-sand separator |
| 04/12/2006 | CN2771470Y Prospect pit pilot production device |
| 04/12/2006 | CN1759227A Shoe for expandable liner system |
| 04/12/2006 | CN1757965A Dynamic control method for hydrate in oil-gas-water mixed system |
| 04/12/2006 | CN1757879A Comprehensive experimental system of hydrate exploitation technology |
| 04/12/2006 | CN1757877A Method of solving near wall anticondensate liquid pollution by gas filling for condensate gas well |
| 04/12/2006 | CN1757876A Membrane method oxygen rich nitrogen rich separation utilization method for thick oil steam injection exploration |
| 04/11/2006 | US7026272 Methods and compositions for sealing oil containing subterranean zones |
| 04/11/2006 | US7025535 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base |
| 04/11/2006 | US7025154 Method and system for circulating fluid in a well system |
| 04/11/2006 | US7025144 Wellbore liner system |
| 04/11/2006 | US7025141 Method of increasing the well rate of exploitation and recharge wells |
| 04/11/2006 | US7025140 Large particulate removal system |
| 04/11/2006 | US7025139 Extraction oil from wells; jet pump; connecting unit; valve |
| 04/11/2006 | US7025137 Three-dimensional well system for accessing subterranean zones |
| 04/11/2006 | US7025135 Thread integrity feature for expandable connections |
| 04/11/2006 | US7025134 Surface pulse system for injection wells |
| 04/11/2006 | US7025132 Flow completion apparatus |
| 04/11/2006 | CA2391186C Check enhancer |
| 04/06/2006 | WO2006036575A2 Production of free gas by gas hydrate conversion |
| 04/06/2006 | WO2005071219A3 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation |
| 04/06/2006 | US20060073987 Reducing the viscosity of oil-based drilling fluids and well service fluids at low temperatures by adding an ethylene oxide-1,3-propylene oxide-1,4-butylene oxide adduct monoetherified with a linear or branched long-chain alcohol during drilling |
| 04/06/2006 | US20060073984 Shale hydration inhibition agent and method of use |
| 04/06/2006 | US20060073982 Shale hydration inhibition agent and method of use |
| 04/06/2006 | US20060073981 Methods of preparing non-aqueous fluids suitable for use in wellbore servicing fluids |
| 04/06/2006 | US20060073980 Well treating composition containing relatively lightweight proppant and acid |
| 04/06/2006 | US20060070742 Expansion pig |
| 04/06/2006 | US20060070740 System and method for fracturing a hydrocarbon producing formation |
| 04/06/2006 | US20060070739 Propellant Fracturing of Wells |
| 04/06/2006 | US20060070738 Perforating gun quick connection system |
| 04/06/2006 | US20060070737 Method of increasing the well rate of exploitation and recharge wells |
| 04/06/2006 | US20060070736 Mixing water, oil, micron to sub-micron sized hydrophilic solid particles and a pH enhancing agent; and transporting through pipe; enhanced oil recovery |
| 04/06/2006 | US20060070735 Apparatus and method for well completion |
| 04/06/2006 | US20060070732 Process and device for the thermal stimulation of gas hydrate formations |
| 04/06/2006 | CA2581165A1 Method and apparatus for reducing a skin effect in a downhole environment |
| 04/05/2006 | EP1642029A2 Pump for tail production of oil |
| 04/05/2006 | EP1642002A1 Downhole Data Communication |
| 04/05/2006 | EP1368105B1 Screen |
| 04/05/2006 | EP1116350B1 Drill string telemetry with insulator between receiver and transmitter |
| 04/05/2006 | EP0668959B1 Method and apparatus for gravel packing a well |
| 04/05/2006 | CN2769552Y Tower type hydraulic long-stroke beam-pumping unit |
| 04/05/2006 | CN2769551Y Pulley wheel type beam-pumping unit |
| 04/05/2006 | CN2769511Y Small-diameter fracturing sand blower |
| 04/05/2006 | CN2769510Y Multi-well combined constant-flow water distributor |
| 04/05/2006 | CN2769509Y Oil field special underwell tool |
| 04/05/2006 | CN2769508Y Quasi-scalariform seam oil well screen tube set |
| 04/05/2006 | CN2769507Y Vibration reducer |
| 04/05/2006 | CN2769506Y Underwell oil production tool |
| 04/05/2006 | CN2769491Y Viscous oil thermal recovery well jacket pipe connecting structure |
| 04/05/2006 | CN1756892A Propped fracture with high effective surface area |
| 04/05/2006 | CN1756891A Advanced gas injection method and apparatus and liquid hydrocarbon compound recovery system |
| 04/05/2006 | CN1756890A Method for drilling and completing wells |
| 04/05/2006 | CN1249433C Method for raising measuring precision of water content in water flooding developed oil-bearing formation |
| 04/05/2006 | CN1249327C Sand screen with integrated sensors |
| 04/04/2006 | US7022241 Gas-gas-water treatment system for groundwater and soil remediation |
| 04/04/2006 | US7021390 Tubular liner for wellbore casing |
| 04/04/2006 | US7021388 Fibre optic well control system |
| 04/04/2006 | US7021387 Wellbore pump |
| 04/04/2006 | US7021384 Apparatus and method for wellbore isolation |
| 04/04/2006 | US7021383 reacting water, formate ester and optional additive to form an acid which reacts with the formation to increase the permeability in that region; allows for deep pumping within the formation and away from the well-bore area |
| 04/04/2006 | US7021379 Methods and compositions for enhancing consolidation strength of proppant in subterranean fractures |
| 04/04/2006 | US7021378 Method for enhancing the retention efficiency of treatment chemicals in subterranean formations |
| 04/04/2006 | US7021377 Methods of removing filter cake from well producing zones |
| 04/04/2006 | US7021375 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 04/04/2006 | US7021373 Downhole hydraulic ram |
| 04/04/2006 | CA2418574C Downhole fluid disposal apparatus and methods |
| 04/04/2006 | CA2383627C Method for repeating messages in long intelligent completion system lines |
| 04/04/2006 | CA2373733C Full flow tubing stationary valve pump apparatus |
| 04/04/2006 | CA2243178E Charge tube retaining and orienting structures for a perforating gun |
| 04/04/2006 | CA2230508C Process to enhance removal of adhering solids from the surface of wellbores and sand control devices therein |
| 03/30/2006 | WO2006032850A1 Well start-up system and process |
| 03/30/2006 | WO2006032833A1 Methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
| 03/30/2006 | WO2005123871A3 Formation consolidation process |