| 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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| 12/10/2002 | US6491104 Open-hole test method and apparatus for subterranean wells |
| 12/10/2002 | US6491103 System for running tubular members |
| 12/10/2002 | US6491101 Apparatus for establishing branch wells from a parent well |
| 12/10/2002 | US6491098 Method and apparatus for perforating and stimulating oil wells |
| 12/10/2002 | US6491097 Abrasive slurry delivery apparatus and methods of using same |
| 12/10/2002 | US6491096 Two phase heat generation system and method |
| 12/10/2002 | US6491095 Transducers, and methods of producing transducers, with cryogenically treated transducer members |
| 12/10/2002 | US6490916 Method and system of fluid analysis and control in a hydrocarbon well |
| 12/10/2002 | CA2172046C Fluid activated detonating system |
| 12/05/2002 | WO2002097238A1 Pulsed method for processing the bottomhole zone of a formation |
| 12/05/2002 | WO2002097237A1 Method and apparatus for gravel packing a well |
| 12/05/2002 | WO2002097234A1 Line hanger, running tool and method |
| 12/05/2002 | US20020182700 Fracture of subterranean formation which surrounds a well bore; provie fracturing fluid, inject into well bore, release pressure from fracturing fluid |
| 12/05/2002 | US20020182089 Fluid well pumping system |
| 12/05/2002 | US20020182084 Annular suction valve |
| 12/05/2002 | US20020182011 Industrial waste disposal system |
| 12/05/2002 | US20020179306 Use of helically wound tubular structure in the downhole environment |
| 12/05/2002 | US20020179304 Downhole fluid disposal apparatus and methods |
| 12/05/2002 | US20020179302 Method of controlling proppant flowback in a well |
| 12/05/2002 | US20020178924 Gas separator improvements |
| 12/05/2002 | US20020178582 Methods of fabricating a thin-wall expandable well screen assembly |
| 12/05/2002 | DE10224503A1 Residue-free perforating system for perforating bore-hole liners, comprises an explosive-containing hollow charge without a casing |
| 12/04/2002 | EP1261802A1 Environmentally friendly method for generating energy from natural gas |
| 12/04/2002 | CN2524011Y Internal deceleration fricting cylinders |
| 12/04/2002 | CN2523950Y Hydraulic energy-saving oil sucker |
| 12/04/2002 | CN2523949Y Six bar linkage and support point variable walking beam oil sucker |
| 12/04/2002 | CN2523948Y Oil sucker driven by linear motor |
| 12/04/2002 | CN2523947Y Energy-saving oil sucker |
| 12/03/2002 | US6488087 Field development methods |
| 12/03/2002 | US6488086 Method of thermochemical treatment of a producing formation and combustible-oxidizing compound (COC) for realizing the same |
| 12/03/2002 | US6488083 Tubing hanger system |
| 12/03/2002 | US6488082 Remotely operated multi-zone packing system |
| 12/03/2002 | US6487973 Method and apparatus for locking charges into a charge holder |
| 11/28/2002 | WO2002095188A1 A method of controlling the direction of propagation of injection fractures in permeable formations |
| 11/28/2002 | WO2002095181A1 Radially expandable tubular with supported end portion |
| 11/28/2002 | WO2002095178A2 Apparatus for suspending a pipe within a well casing |
| 11/28/2002 | US20020175474 Tubing seal |
| 11/28/2002 | US20020174987 Sand removal and device retrieval tool |
| 11/28/2002 | US20020174985 Positive indication system for well annulus cement displacement |
| 11/28/2002 | US20020174984 Method and apparatus for gravel packing a well |
| 11/28/2002 | US20020174983 Gas operated automatic, liquid pumping system for wells |
| 11/28/2002 | US20020174982 Downhole gas-liquid separator for production wells |
| 11/28/2002 | DE10201631A1 Technik zum Ausbilden expandierbarer Vorrichtungen aus Zellen, die zwischen einem kontrahierten Zustand und einem expandierten Zustand wechseln können Technique for forming expandable devices from cells that can switch between a contracted state and an expanded state |
| 11/27/2002 | EP1260672A2 Downhole production string assembly |
| 11/27/2002 | EP1259710A1 Oilwell casing electrical power pick-off points |
| 11/27/2002 | EP1259709A1 Controllable production well packer |
| 11/27/2002 | EP1259708A2 Wireless power and communications cross-bar switch |
| 11/27/2002 | EP1259707A1 Wireless downhole well interval inflow and injection control |
| 11/27/2002 | EP1259706A2 Use of downhole high pressure gas in a gas-lift well |
| 11/27/2002 | EP1259705A1 Electro-hydraulically pressurized downhole valve actuator |
| 11/27/2002 | EP1259702A1 Power generation using batteries with reconfigurable discharge |
| 11/27/2002 | EP1259701A1 Controlled downhole chemical injection |
| 11/27/2002 | EP1259700A1 Tracer injection in a production well |
| 11/27/2002 | EP1165936A4 Novel fluids and techniques for maximizing fracture fluid clean-up |
| 11/27/2002 | CN2522617Y Adjustable uniform chemical-adding apparatus from wellhead |
| 11/27/2002 | CN2522616Y Oil well pumping unit |
| 11/27/2002 | CN2522227Y Oil-pumping-machine stroke regulation-pin dismounting device |
| 11/27/2002 | CN1381668A Oil-pumping unit for oil field |
| 11/26/2002 | US6486828 Adaptive array antenna nulling |
| 11/26/2002 | US6485834 Flexible deployable preform |
| 11/26/2002 | US6484820 Method and device for driving bore-holes, especially in the sea bed, using a guide tip |
| 11/26/2002 | US6484805 Method and apparatus for injecting one or more fluids into a borehole |
| 11/26/2002 | US6484800 Downhole flow control devices |
| 11/26/2002 | US6484740 Blower assembly for gas wells |
| 11/26/2002 | CA2284325C Apparatus and method for installing a water well pump |
| 11/21/2002 | WO2002092965A1 Borehole production boosting system |
| 11/21/2002 | WO2002092963A1 A gas lift method with surfactant injection |
| 11/21/2002 | WO2002092962A1 Expanding tubing |
| 11/21/2002 | WO2002092961A2 Fluid transportation system |
| 11/21/2002 | WO2002092186A2 Hydrate reducing and lubrication system and method for a fluid flow system |
| 11/21/2002 | WO2002059485B1 Gas lift valve with central body ventury for controlling the flow of injection gas in oil wells producing by continuous gas lift |
| 11/21/2002 | US20020170846 Integrated bitumen production and gas conversion |
| 11/21/2002 | US20020170718 Method and apparatus for reducing plunger seal wear on automatic casing swab lift systems |
| 11/21/2002 | US20020170717 Method of achieving a preferential flow distribution in a horizontal well bore |
| 11/21/2002 | US20020170711 Apparatus and methods for conveying instrumentation within a borehole using continuous sucker rod |
| 11/21/2002 | US20020170709 Apparatus for suspending a pipe within a well casing |
| 11/21/2002 | US20020170708 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio |
| 11/21/2002 | DE4294885C2 Appts. for gravel packing well bore interval with shunt means on sand |
| 11/20/2002 | EP1258595A2 Enhanced oil recovery method using CO2 injection |
| 11/20/2002 | EP1258594A2 Controlling proppant flowback in a well |
| 11/20/2002 | EP1257728A1 Artificial lift apparatus with automated monitoring characteristics |
| 11/20/2002 | EP1257725A1 Coupled electromagnetic and acoustic stimulation of crude oil reservoirs |
| 11/20/2002 | EP1027524B1 Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 11/20/2002 | EP0963505B1 Apparatus for downhole fluid separation and control of water production |
| 11/20/2002 | CN2521423Y Double stroke oil-well pump |
| 11/20/2002 | CN2521395Y Oil field water injection well casing pressure monitoring system |
| 11/20/2002 | CN2521393Y Pumping well pump out control instrument |
| 11/20/2002 | CN2521392Y Underwall multifunction controller for natural gas well |
| 11/20/2002 | CN2521391Y Sand control perforating bullet for oil well use |
| 11/20/2002 | CN2521390Y Steel wire screen protection casing sand control pipe |
| 11/20/2002 | CN2521389Y Arrangement of regulating pumping machine balancing weight |
| 11/20/2002 | CN2521388Y Oil field oil extractor sealing rubber bucket |
| 11/20/2002 | CN2521387Y Loading & unloading operation apparatus beam pump |
| 11/20/2002 | CN1380966A Method for poducing, transporting, offloading, storing and distributing natural gas to marketplace |
| 11/20/2002 | CN1380484A Oil well liquid-supplying state monitoring method and automatic oil-pumping control method of pumping machine and its equipment |
| 11/20/2002 | CN1094555C Bridge type eccentric testing and injection recovery apparatus |
| 11/19/2002 | US6482866 Viscoelastic surfactant fluids and related methods of use |
| 11/19/2002 | US6481504 Flowline connector with subsea equipment package |
| 11/19/2002 | US6481503 Multi-purpose injection and production well system |
| 11/19/2002 | US6481500 Method and apparatus for enhancing oil recovery |