| 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) |
|---|
| 10/23/2008 | US20080257555 Linear Drive Assembly with Rotary Union for Well Head Applications and Method Implemented Thereby |
| 10/23/2008 | US20080257554 Foamed fluid additive for underbalance drilling |
| 10/23/2008 | US20080257553 Aggregating reagents, modified particulate metal-oxides and proppants |
| 10/23/2008 | US20080257552 Apparatus, system, and method for in-situ extraction of hydrocarbons |
| 10/23/2008 | US20080257551 Methods of Chemical Diversion of Scale Inhibitors |
| 10/23/2008 | US20080257550 Method and Device for Separation of Particles from Injection Water |
| 10/23/2008 | US20080257549 Consumable Downhole Tools |
| 10/23/2008 | US20080257547 Gas assisted lift system |
| 10/23/2008 | US20080257546 Autonomous Downhole Control Methods and Devices |
| 10/23/2008 | US20080257542 Low Carbon Steel Expandable Tubular |
| 10/23/2008 | CA2683516A1 Aqueous particulate slurry compositions and methods of making same |
| 10/23/2008 | CA2682937A1 Dry additive metering into portable blender tub |
| 10/22/2008 | EP1983153A1 Flexible liner for drilled drainhole deployment |
| 10/22/2008 | EP1982045A1 Remote plugging device for wells |
| 10/22/2008 | EP1982044A1 Automatic control line insertion tools and system |
| 10/22/2008 | EP1982043A2 Synergistic surfactant compositions for unloading fluids from oil and gas wells |
| 10/22/2008 | EP1982042A1 Bore selector |
| 10/22/2008 | EP1315881B1 Method and system for perforating |
| 10/22/2008 | CN201137565Y Angle crank balance type energy-saving oil pumping machine |
| 10/22/2008 | CN201137564Y Down-hole oil pump |
| 10/22/2008 | CN201137563Y Highly water-bearing rod pumped well double-pipe annulus oiling eccentric-abrasion preventing pipe column |
| 10/22/2008 | CN201137562Y Swirling self-cleaning large flow passage sand-proof oil-well pump |
| 10/22/2008 | CN201137486Y Down-hole cable-free electromagnetic electric heating membrane remixed heating oil extraction device |
| 10/22/2008 | CN201137485Y High pressure anti-theft constant-current water-mixing device |
| 10/22/2008 | CN201137484Y Anti-pollution eccentric water distributing apparatus |
| 10/22/2008 | CN201137483Y Oil gas well composite sand prevention tube |
| 10/22/2008 | CN201137482Y Composite precision corrugated sand-filtering pipe |
| 10/22/2008 | CN201137481Y Oil pumping machine dragging integral energy-saving device |
| 10/22/2008 | CN201137465Y Low yield well pumping unit |
| 10/22/2008 | CN201137464Y Prearranged process pipe column for gas well maintenance without killing |
| 10/22/2008 | CN201137463Y Multiple co-seepage corrosion resistant oil extraction water injection oil conduit |
| 10/22/2008 | CN101291050A Electric cable winding/paying off device, down-hole information transmission apparatus and method |
| 10/22/2008 | CN101289933A Thick oil well bore heating and viscosity reducing hot extraction method and apparatus |
| 10/22/2008 | CN101289932A Straight-line parallel flow water injection oil extraction method |
| 10/22/2008 | CN101289931A Oil well production increasing environment-friendly device |
| 10/22/2008 | CN101289930A Circular disc permanent magnetism wind water double cold linear motor oil pumping machine |
| 10/22/2008 | CN101289929A Movable pulley type oil pumping unit |
| 10/22/2008 | CN101289926A Polished rod eye without beating clip for bumping pump |
| 10/22/2008 | CN100427720C Heat carrier set in blowout prevention type |
| 10/22/2008 | CN100427719C Oil-well realtime monitoring system and its controlling method |
| 10/21/2008 | US7438133 Apparatus and method for radially expanding and plastically deforming a tubular member |
| 10/21/2008 | US7438132 Concentric pipes expanded at the pipe ends and method of forming |
| 10/21/2008 | US7438129 Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation |
| 10/21/2008 | US7438125 Variable orifice bypass plunger |
| 10/21/2008 | CA2482831C Methods and apparatus for expanding tubulars |
| 10/21/2008 | CA2471614C Apparatus for translating a rotary expander tool downhole |
| 10/21/2008 | CA2465111C Method for conditioning wellbore fluids and sucker rod therefore |
| 10/21/2008 | CA2360930C Multilateral well and electrical transmission system |
| 10/17/2008 | CA2628983A1 Flexible liner for drilled drainhole deployment |
| 10/16/2008 | WO2008124568A1 Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive |
| 10/16/2008 | WO2008124080A1 A method for the fracture stimulation of a subterranean formation having a wellbore by using impact-modified thermoset polymer nanocomposite particles as proppants |
| 10/16/2008 | WO2008122809A1 Downhole apparatus and method |
| 10/16/2008 | WO2008122749A1 An apparatus for venting an annular space between a liner and a pipeline of a subsea riser |
| 10/16/2008 | WO2008098052A3 Well perforating system with orientation marker |
| 10/16/2008 | WO2008092100A3 Chemically enhanced gas-lift for oil and gas wells |
| 10/16/2008 | WO2008070674B1 Flow restriction apparatus and methods |
| 10/16/2008 | WO2008070035A3 Particle stabilized emulsions for enhanced hydrocarbon recovery |
| 10/16/2008 | WO2008056301B1 Method of plugging fractured formation |
| 10/16/2008 | WO2008052015A3 Functional polymer for enhanced oil recovery |
| 10/16/2008 | WO2008051833A3 Heating hydrocarbon containing formations in a checkerboard pattern staged process |
| 10/16/2008 | WO2007124412A3 Time sequenced heating of multiple layers in a hydrocarbon containing formation |
| 10/16/2008 | WO2007083192B1 Wellbore system and method using a flow-actuated diverter valve |
| 10/16/2008 | US20080251261 Liner top packer seal assembly and method |
| 10/16/2008 | US20080251255 Steam injection apparatus for steam assisted gravity drainage techniques |
| 10/16/2008 | US20080251252 Polymeric gel system and methods for making and using same in hydrocarbon recovery |
| 10/16/2008 | US20080251250 Annular Isolators for Expandable Tubulars in Wellbores |
| 10/16/2008 | US20080251249 Safety cement plug launch system |
| 10/16/2008 | CA2683342A1 Downhole apparatus and method |
| 10/16/2008 | CA2682910A1 Modular time delay for actuating wellbore devices and methods for using same |
| 10/16/2008 | CA2682863A1 Use of a chopper mechanism to add fibers to a well |
| 10/15/2008 | EP1979573A2 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 10/15/2008 | EP1733119B8 Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 10/15/2008 | CN201133242Y Eccentric flow regulator |
| 10/15/2008 | CN201133241Y Minor diameter eccentric bridge type distributor |
| 10/15/2008 | CN201133240Y Deep well block-proof swab |
| 10/15/2008 | CN201133239Y Oil gas well pumping, exhausting fire-lighting device |
| 10/15/2008 | CN201133238Y Quantified rock core filling device |
| 10/15/2008 | CN201133237Y Double well oil pumping machine |
| 10/15/2008 | CN201133230Y Open type cable hydraulic blowout preventer |
| 10/15/2008 | CN101287529A 水力旋流器 Hydrocyclone |
| 10/15/2008 | CN101285379A Parameter optimization method for polymer plug drive injection |
| 10/15/2008 | CN101285378A HAS composite plug removal technology |
| 10/15/2008 | CN101285377A Stabilizing a flow along a wellbore |
| 10/14/2008 | US7437215 Method and system for improving pump efficiency and productivity under power disturbance conditions |
| 10/14/2008 | US7435706 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 |
| 10/14/2008 | US7434633 Radially expandable downhole fluid jet cutting tool |
| 10/14/2008 | US7434624 Hybrid tension-leg riser |
| 10/14/2008 | US7434622 Compliant cone for solid liner expansion |
| 10/14/2008 | US7434621 System and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing |
| 10/14/2008 | US7434620 Cavity positioning tool and method |
| 10/14/2008 | US7434619 Optimization of reservoir, well and surface network systems |
| 10/14/2008 | US7434618 Apparatus for expanding a tubular member |
| 10/14/2008 | US7434615 Apparatus for preventing pollution of subterranean water |
| 10/14/2008 | US7434613 Surface controlled subsurface lateral branch safety valve |
| 10/14/2008 | CA2497631C Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks |
| 10/14/2008 | CA2496737C Gas lift mandrel |
| 10/14/2008 | CA2496522C Run in cover for downhole expandable screen |
| 10/14/2008 | CA2472547C Centraliser |
| 10/14/2008 | CA2459261C Apparatus and system for concentrating slurry solids |
| 10/14/2008 | CA2339510C Downhole separation of produced water in hydrocarbon wells, and simultaneous downhole injection of separated water and surface water |