| 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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| 07/26/2002 | CA2563145A1 Sand barrier for a level 3 multilateral wellbore junction |
| 07/25/2002 | WO2002057594A1 Well screen cover |
| 07/25/2002 | WO2001042620A9 Sand control method and apparatus |
| 07/25/2002 | US20020099505 System and method for real time reservoir management |
| 07/25/2002 | US20020096338 Method of coupling a tubular member to a preexisting structure |
| 07/25/2002 | US20020096336 Method and system for surface production of gas from a subterranean zone |
| 07/25/2002 | US20020096333 Base-pipe flow control mechanism |
| 07/25/2002 | US20020096332 Gas lift valve with central body venturi for controlling the flow of injection gas in oil wells producing by continuous gas lift |
| 07/25/2002 | US20020096329 Unconsolidated zonal isolation and control |
| 07/25/2002 | US20020096328 Remotely operated multi-zone packing system |
| 07/25/2002 | US20020096327 System for use in a subterranean environment to vent gas for improved production of a desired fluid |
| 07/25/2002 | US20020096324 Production optimization methodology for multilayer commingled reservoirs using commingled reservoir production performance data and production logging information |
| 07/25/2002 | US20020096320 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate |
| 07/25/2002 | US20020096040 Unique phasings and firing sequences for perforating guns |
| 07/24/2002 | EP1225302A2 Well completion apparatus and method |
| 07/24/2002 | EP1224440A2 Multiphase flow measurement system |
| 07/24/2002 | EP1224438A1 Device and method for measuring fluid and solute fluxes in flow systems |
| 07/24/2002 | EP1224379A1 Flow control apparatus for use in a subterranean well |
| 07/24/2002 | EP1178922A4 Satellite separator platform (ssp) |
| 07/24/2002 | EP1092078A4 Flying lead workover interface system |
| 07/24/2002 | EP0977621B1 A method and device for the separation of a fluid in a well |
| 07/24/2002 | CN2502008Y Sewage recovering device for oil field water injection well |
| 07/24/2002 | CN2502007Y Oil punping unit with four wheels |
| 07/24/2002 | CN2502006Y Floor type multi-cable pumping unit |
| 07/24/2002 | CN2502005Y Chain oil pumping unit |
| 07/24/2002 | CN1088157C Incline shaft petroleum oil well pump |
| 07/23/2002 | US6422324 Method and device for driving bore-holes, in the sea bed using a counterflush method |
| 07/23/2002 | US6422318 Horizontal well system |
| 07/23/2002 | US6422313 Apparatus and method for recovering waste production gases |
| 07/23/2002 | US6422312 Multizone production monitoring system |
| 07/23/2002 | US6422148 Impermeable and composite perforating gun assembly components |
| 07/23/2002 | CA2331933A1 The hydraulic load equalizer |
| 07/23/2002 | CA2331932A1 The mechanical load equalizer |
| 07/23/2002 | CA2196369C Chemically induced stimulation of coal cleat formation |
| 07/23/2002 | CA2055549C Recovering hydrocarbons from tar sand or heavy oil reservoirs |
| 07/18/2002 | WO2002055842A1 Method and apparatus for controlling the distribution of injected material in a wellbore |
| 07/18/2002 | WO2002055841A2 Well screen having a line extending therethrough |
| 07/18/2002 | WO2002055836A1 Method of drilling and operating a subsea well |
| 07/18/2002 | WO2002055831A2 Improved method for stimulation of liquid flow in a well |
| 07/18/2002 | WO2002029207B1 Method and system for tubing a borehole in single diameter |
| 07/18/2002 | WO2002009231B1 Adaptive array antenna nulling |
| 07/18/2002 | WO2001020127A9 Well management system |
| 07/18/2002 | US20020092808 Apparatus for preventing erosion of wellbore components and method of fabricating same |
| 07/18/2002 | US20020092658 Wellbore isolation technique |
| 07/18/2002 | US20020092657 Method of applying an axial force to an expansion cone |
| 07/18/2002 | US20020092655 Subsea wellbore drilling system for reducing bottom hole pressure |
| 07/18/2002 | US20020092654 Expandable packer isolation system |
| 07/18/2002 | US20020092650 Method and apparatus for stimulation of multiple formation intervals |
| 07/18/2002 | US20020092649 Screen and method having a partial screen wrap |
| 07/18/2002 | US20020092648 Expandable sand screen and methods for use |
| 07/17/2002 | EP1223349A2 Connector assembly |
| 07/17/2002 | EP1223305A2 Bi-stable expandable device and method for expanding such a device |
| 07/17/2002 | EP1223304A2 Apparatus and method for forming a window or an outline thereof in the casing of a cased wellbore |
| 07/17/2002 | EP1223303A1 Treatment fluid injection apparatus and method |
| 07/17/2002 | EP1222360A1 Tool assembly and monitoring applications using same |
| 07/17/2002 | EP1180195A4 Casing conveyed perforating process and apparatus |
| 07/17/2002 | EP1015094B1 Radial-flow filter and method of manufacture |
| 07/17/2002 | CN2500839Y Eccentric multi-stage maze sealing oil pump plunger |
| 07/17/2002 | CN2500803Y Visible physics simulation displacement plane model for oil displacement |
| 07/17/2002 | CN2500802Y Water distributor for injecting water and producing oil by layer in oil field |
| 07/17/2002 | CN2500801Y Multifunctional flow controller |
| 07/17/2002 | CN1358671A Water treatment method for heat recovering heavy oil |
| 07/16/2002 | US6419472 Gear unit for a deep-borehole pump |
| 07/16/2002 | US6419458 Sub sea pile-sump pumping arrangement |
| 07/16/2002 | US6419033 Apparatus and method for simultaneous drilling and casing wellbores |
| 07/16/2002 | US6419026 Method and apparatus for completing a wellbore |
| 07/16/2002 | US6419025 Method of selective plastic expansion of sections of a tubing |
| 07/16/2002 | US6419024 Deviated borehole drilling assembly |
| 07/16/2002 | US6419023 Deviated borehole drilling assembly |
| 07/16/2002 | US6419022 Retrievable zonal isolation control system |
| 07/16/2002 | US6419021 Deviated borehole drilling assembly |
| 07/16/2002 | US6419012 Deviated borehole drilling assembly |
| 07/16/2002 | US6419011 Annular shaped interrupted solenoid activator and pump for borehole subsea use (BEI-0002) |
| 07/16/2002 | US6419010 Deviated borehole drilling assembly |
| 07/16/2002 | CA2745733A1 Technique of forming expandable devices from cells that may be transitioned between a contracted state and an expanded state |
| 07/16/2002 | CA2544701A1 Expandable sand screen and methods for use |
| 07/15/2002 | CA2331511A1 The gaslift reciprocating pump |
| 07/11/2002 | WO2002054005A2 Blasting apparatus for forming horizontal underground cavities and blasting method using the same |
| 07/11/2002 | WO2002053867A2 Mono-diameter wellbore casing |
| 07/11/2002 | US20020088744 Well screen having a line extending therethrough |
| 07/11/2002 | US20020088621 Multi-purpose injection and production well system |
| 07/11/2002 | US20020088620 Interactive and/or secure activation of a tool |
| 07/11/2002 | US20020088619 Cementing tool and method |
| 07/11/2002 | US20020088618 System for separately producing water and oil from a reservoir |
| 07/11/2002 | US20020088338 Perforating gun |
| 07/11/2002 | CA2428819A1 Mono-diameter wellbore casing |
| 07/10/2002 | EP1221534A2 Proppant containment apparatus and methods of using same |
| 07/10/2002 | EP1220972A1 Underbalanced perforation |
| 07/10/2002 | EP1027526B1 Expandable downhole tubing |
| 07/10/2002 | CN2499601Y Multiphase mixed transport pump for oil, gas and water |
| 07/10/2002 | CN2499575Y Anchoring device for closed hot water circulation thermal oil production well |
| 07/10/2002 | CN2499574Y Downhole zonal injection detector |
| 07/10/2002 | CN2499573Y Optimum control drive device for oil pumping machine operation |
| 07/10/2002 | CN2499572Y Crash disc pressure difference type primer detonator |
| 07/10/2002 | CN2499571Y Drum type oil pumping machine |
| 07/10/2002 | CN2499570Y Double cavity type anti-block downhole chemical blending valve |
| 07/10/2002 | CN2499565Y Heat insulation tube seal bush |
| 07/10/2002 | CN1357677A Stratum-changing production method and technical pipe column |
| 07/10/2002 | CN1087385C Apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 07/09/2002 | US6416661 Universal well screen filter |