| 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) |
|---|
| 10/02/2008 | CA2681122A1 Wellbore system and method of completing a wellbore |
| 10/02/2008 | CA2681043A1 Method of interconnecting subterranean boreholes |
| 10/02/2008 | CA2679506A1 Method and apparatus for slotting tubular steel |
| 10/01/2008 | EP1975369A2 Method and system for accessing subterranean deposits from the surface |
| 10/01/2008 | EP1520085B1 Compositions and methods for treating a subterranean formation |
| 10/01/2008 | EP0833802B1 Slag cement and process using hydrophobically modified galactomannans as filtrate reductants |
| 10/01/2008 | CN201125860Y Double safety mutual locking type oil pumping machine brake device |
| 10/01/2008 | CN201125859Y Direct balance type energy-saving beam-pumping unit |
| 10/01/2008 | CN201125726Y Intelligent single well flow quantity apparatus |
| 10/01/2008 | CN201125725Y Adjustable work measuring suite in creep grinding device |
| 10/01/2008 | CN201125724Y Petroleum crude separator capable of adjusting liquid interface |
| 10/01/2008 | CN201125723Y Petroleum crude separator silk screen foam destroyer |
| 10/01/2008 | CN201125722Y Downhole pressure pulsed jet solution tools |
| 10/01/2008 | CN201125721Y Novel high hole dense deep penetration gun perforation cartridge |
| 10/01/2008 | CN201125720Y Energy storage rebound type hair pressing device |
| 10/01/2008 | CN201125719Y Double-layer net cartridge permeable downhole filter apparatus |
| 10/01/2008 | CN201125718Y Thick oil well petroleum crude collective transport viscosity reduction water mixing device |
| 10/01/2008 | CN201125717Y Oil pumping machine with energy-saving type pumping unit |
| 10/01/2008 | CN201125716Y Mining and making integrated oil pumping machine |
| 10/01/2008 | CN201125715Y Direct drive tower type oil pumping machine |
| 10/01/2008 | CN201125714Y Movable pulley set straight-line electric drive oil pumping machine |
| 10/01/2008 | CN101275465A Monitoring and automatic control of operating parameters for a downhole oil/water separation system |
| 10/01/2008 | CN101275464A Oil gas well completion temporary blocking liner tube |
| 10/01/2008 | CN101275463A Beam type hydraulic oil pumping machine |
| 10/01/2008 | CN100423010C Method for implementing complete system of oil diving electric pump |
| 10/01/2008 | CN100422556C Small displacement high lift reciprocating submersible electric pump |
| 10/01/2008 | CN100422504C Method of regulating layered water distribution using pressure wave |
| 09/30/2008 | US7428929 Method and apparatus for lifting liquids from gas wells |
| 09/30/2008 | US7428926 Water treatment method for heavy oil production |
| 09/30/2008 | US7428924 System and method for completing a subterranean well |
| 09/30/2008 | US7428923 Top plunger adapter |
| 09/30/2008 | US7428922 Valve and position control using magnetorheological fluids |
| 09/30/2008 | US7428921 Well treatment system and method |
| 09/30/2008 | CA2492935C Method of hydraulic fracture of subterranean formation |
| 09/30/2008 | CA2478928C Wellbore pumping with improved temperature performance |
| 09/30/2008 | CA2474518C Fracturing port collar for wellbore pack-off system |
| 09/30/2008 | CA2431370C Methods of reducing or preventing particulate flow-back in wells |
| 09/30/2008 | CA2417431C Fracturing different levels within a completion interval of a well |
| 09/30/2008 | CA2416040C Method for treating multiple wellbore intervals |
| 09/30/2008 | CA2324059C Use of delayed release breakers in gelled hydrocarbons |
| 09/30/2008 | CA2272593C Multiple drain method for recovering oil from tar sand |
| 09/26/2008 | CA2627390A1 Drilling, completing and stimulating a hydrocarbon production well |
| 09/25/2008 | WO2008115944A2 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
| 09/25/2008 | WO2008115359A1 Granular electrical connections for in situ formation heating |
| 09/25/2008 | WO2008115356A1 Resistive heater for in situ formation heating |
| 09/25/2008 | WO2008115178A1 Separator for downhole measuring and method therefor |
| 09/25/2008 | WO2008114192A2 Method of treating subterranean formation with crosslinked polymer fluid |
| 09/25/2008 | WO2008113357A1 Perforation tool with switch |
| 09/25/2008 | WO2007118094A3 Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material |
| 09/25/2008 | US20080230230 Multiple stage tool for use with plunger lift |
| 09/25/2008 | US20080230228 System and Method For Well Intervention |
| 09/25/2008 | US20080230226 Method and apparatus for isolating a wellhead for fracturing |
| 09/25/2008 | US20080230225 Perforators |
| 09/25/2008 | US20080230223 Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same |
| 09/25/2008 | US20080230222 Apparatus and a Method of Fragmenting Hard Particles |
| 09/25/2008 | US20080230220 Proppant suspension testing devices and methods of use |
| 09/25/2008 | US20080230219 Resistive heater for in situ formation heating |
| 09/25/2008 | DE112006002829T5 Verfahren zum Zerklüften von Formationen unter Verwendung quaternärer Aminsalze als Viskositätserhöher A method for fracturing formations using quaternary amine salts as viscosity enhancers |
| 09/25/2008 | CA2680694A1 Perforation tool with switch |
| 09/25/2008 | CA2676086A1 Resistive heater for in situ formation heating |
| 09/25/2008 | CA2675780A1 Granular electrical connections for in situ formation heating |
| 09/24/2008 | EP1972752A2 Protective sleeve for threated connections for expandable liner hanger |
| 09/24/2008 | EP1971751A2 Apparatus and method for selective actuation of downhole tools |
| 09/24/2008 | CN201121583Y Extension type full-metal single screw oil pump |
| 09/24/2008 | CN201121572Y Bias-wearing proof anti-sand gas-tight multi-function oil well pump |
| 09/24/2008 | CN201121516Y Gas oil separation buffering mechanism |
| 09/24/2008 | CN201121515Y Polymer injection device |
| 09/24/2008 | CN201121514Y Oil gas well foam drainage experimental device |
| 09/24/2008 | CN201121513Y Down-hole plugging medicine dispensing apparatus |
| 09/24/2008 | CN201121512Y Built-in type secondary boosting compound perforating tool |
| 09/24/2008 | CN201121511Y Compound stainless steel board net sand-proof pipe |
| 09/24/2008 | CN201121505Y Control valve for oil well pouring with anti-shock performance |
| 09/24/2008 | CN201121501Y Pressure balancing oil production tree or gas production tree replacing device |
| 09/24/2008 | CN201121500Y Oil-production water-injection well mouth |
| 09/24/2008 | CN201121490Y Anti-falling sucker-rod post of thick oil horizontal well |
| 09/24/2008 | CN101273184A Apparatus and a method of fragmenting hard particles |
| 09/24/2008 | CN101273183A Degradable material assisted diversion or isolation |
| 09/24/2008 | CN101271642A Combustion driven three-dimensional physical analogue device |
| 09/24/2008 | CN101270656A Well position disposition method for oil-field development |
| 09/24/2008 | CN101270655A Well position disposition method for oil-field development |
| 09/24/2008 | CN101270654A Well position disposition method for oil-field development |
| 09/24/2008 | CN101270653A Acid distributing pipe with eyelet structure |
| 09/24/2008 | CN101270652A Continuous pipe liquid carrying and eyelet shunting simulation device in horizontal pit shaft |
| 09/24/2008 | CN101270651A Effective supporting method for fracturing artificial slit |
| 09/24/2008 | CN101270650A Skid mounted polymer injection system for marine oil field |
| 09/24/2008 | CN101270649A Down-hole high pressure screw pump polymer injector system |
| 09/24/2008 | CN101270648A Shunting injection allocation method and shunting injection allocation machine |
| 09/24/2008 | CN101270647A Injection allocation volume automatic regulation method for marine oil-field water injection well |
| 09/24/2008 | CN101270646A Water injection well down-hole water sound intelligent control regulating and measuring system |
| 09/24/2008 | CN101270645A Pressure excitation type detonating device capable of displaying starting signal |
| 09/24/2008 | CN101270644A Sieve tube with bulged internal support sleeve and its processing method |
| 09/24/2008 | CN101270643A Sieve tube with novel internal support sleeve and method for producing the same |
| 09/24/2008 | CN101270642A Through-tubing water-controlled sand prevention pipe |
| 09/24/2008 | CN101270641A Miniature gravel filling simulation device and method for measuring gravel filling effect |
| 09/24/2008 | CN101270640A Miniature gravel filling simulation device |
| 09/24/2008 | CN101270639A Packer packing multi-layer hydropower abrasive perforating and fracturing integrated technique |
| 09/24/2008 | CN101270638A Straight-pushing arc-operation beam pumping unit |
| 09/24/2008 | CN101270637A Well building method for preventing brine seepage in salt wells |
| 09/24/2008 | CN101270635A Installed mesh type miniature flow control valve and its processing method |
| 09/24/2008 | CN101270445A Steel for fire resistant insulated tubing, insulated tubing and method for manufacturing same |