| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
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| 06/06/2002 | US20020066565 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources |
| 06/06/2002 | US20020066556 Well having a self-contained inter vention system |
| 06/06/2002 | US20020066309 Monitoring of downhole parameters and tools utilizing fiber optics |
| 06/05/2002 | EP1210499A1 Method and system for processing of drilling fluid |
| 06/05/2002 | EP1210498A1 Smart shuttles to complete oil and gas wells |
| 06/05/2002 | EP0851966B1 System for selective re-entry to completed laterals |
| 06/05/2002 | CN2494427Y Oil pipe coaxial controlling device |
| 06/04/2002 | US6399547 Mixture od acid, water and aldehydes |
| 06/04/2002 | US6397864 Nozzle arrangement for well cleaning apparatus |
| 06/04/2002 | US6397758 Pipe racking system track cover |
| 05/30/2002 | WO2001062603A3 Integrated reservoir optimization |
| 05/30/2002 | US20020062991 Communicating with a tool |
| 05/30/2002 | US20020062966 Wellhead assembly for injecting a fluid into a well and method of using the same |
| 05/30/2002 | US20020062965 Wellhead assembly for accessing an annulus in a well and a method for its use |
| 05/30/2002 | US20020062964 Method and apparatus for injecting a fluid into a well |
| 05/30/2002 | US20020062961 In situ thermal processing of a hydrocarbon containing formation and ammonia production |
| 05/30/2002 | US20020062959 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio |
| 05/29/2002 | CN2493776Y Slide device for racking platform |
| 05/28/2002 | US6394194 Method and apparatus for a drill cutting injection system |
| 05/23/2002 | WO2001081239A3 In situ recovery from a hydrocarbon containing formation |
| 05/23/2002 | US20020062052 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020062051 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020060313 Corrosion inhibitors |
| 05/21/2002 | US6390198 Method for running two tubing strings into a well |
| 05/16/2002 | WO2002038916A2 An apparatus and method for determining downhole bit failure |
| 05/16/2002 | WO2002038915A2 Adaptive filter prediction method and system for detecting drill bit failure and signaling surface operator |
| 05/16/2002 | WO2002038914A2 System and method for signalling downhole conditions to surface |
| 05/16/2002 | WO2002038909A2 Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator |
| 05/16/2002 | WO2002038908A2 Differential sensor measurements to detect drill bit failure |
| 05/16/2002 | WO2002002900A3 Apparatus and method to complete a multilateral junction |
| 05/16/2002 | US20020059048 Method of load and failure prediction of downhole liners and wellbores |
| 05/16/2002 | US20020057905 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids |
| 05/16/2002 | US20020057151 Apparatus for retrieving metal debris from a well bore |
| 05/16/2002 | US20020056552 In situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids |
| 05/16/2002 | US20020056551 In situ thermal processing of a hydrocarbon containing formation in a reducing environment |
| 05/15/2002 | EP1204808A1 Drilling and completion system for multilateral wells |
| 05/14/2002 | US6389360 Automated bore planning method and apparatus for horizontal directional drilling |
| 05/14/2002 | US6388577 High impact communication and control system |
| 05/14/2002 | US6386297 Method and apparatus for determining potential abrasivity in a wellbore |
| 05/14/2002 | US6386287 Deviated borehole drilling assembly |
| 05/09/2002 | US20020053608 Portable locator including a ground marking arrangement |
| 05/09/2002 | US20020053437 Apparatus for establishing branch wells from a parent well |
| 05/09/2002 | US20020053436 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material |
| 05/09/2002 | US20020053435 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate |
| 05/09/2002 | US20020053432 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources |
| 05/09/2002 | US20020053431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas |
| 05/09/2002 | US20020053429 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control |
| 05/08/2002 | EP1058770B1 Energy recovery in a wellbore |
| 05/07/2002 | US6384738 Pressure impulse telemetry apparatus and method |
| 05/07/2002 | US6383262 Energy recovery in a wellbore |
| 05/07/2002 | US6381899 Well drill cuttings disposal |
| 05/02/2002 | WO2002035056A2 Downhole generator for horizontal directional drilling |
| 05/02/2002 | WO2000054009A9 Downhole depth correlation |
| 05/02/2002 | US20020052297 Mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. |
| 05/02/2002 | US20020050930 Apparatus and method for downhole well equipment and process management, identification, and operation |
| 05/02/2002 | US20020050358 Flow control in multilateral wells |
| 05/02/2002 | US20020050357 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content |
| 05/02/2002 | US20020050356 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio |
| 05/02/2002 | US20020050354 Low power miniature hydraulic actuator |
| 05/02/2002 | US20020050353 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources |
| 05/02/2002 | US20020050352 In situ thermal processing of a hydrocarbon containing formation to control product composition |
| 05/02/2002 | US20020050168 Method and device for investigating and identifying the nature of a material |
| 05/01/2002 | CN2489092Y Underwell sand settling device |
| 04/30/2002 | US6380476 Using hydrocarbon fuels; thermoelectric power generators |
| 04/30/2002 | US6378633 Drill pipe protector assembly |
| 04/30/2002 | US6378627 Autonomous downhole oilfield tool |
| 04/25/2002 | WO2001081715A3 Method and system for treating a hydrocarbon containing formation |
| 04/25/2002 | US20020049575 Well planning and design |
| 04/25/2002 | US20020049360 In situ thermal processing of a hydrocarbon containing formation to produce a mixture including ammonia |
| 04/25/2002 | US20020049358 Heat sources heat a portion of the coal formation to temperatures that allow pyrolysis of the hydrocarbons; controlling temperature and pressure to yield improved products from the formation |
| 04/25/2002 | US20020046883 In situ thermal processing of a coal formation using pressure and/or temperature control |
| 04/25/2002 | US20020046845 Hydraulic actuator |
| 04/25/2002 | US20020046843 Hydraulic actuator |
| 04/25/2002 | US20020046839 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas |
| 04/25/2002 | US20020046838 One or more heat sources used to heat a portion of the hydrocarbon containing formation to temperature that allow pyrolysis of hydrocarbons to yield a mixture of relatively high quality hydrocarbon product such as synthesis gas et. |
| 04/25/2002 | US20020046837 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content |
| 04/25/2002 | US20020046834 Hydraulic actuator |
| 04/25/2002 | US20020046832 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products |
| 04/24/2002 | EP1198658A1 Method of creating a weld in a wellbore |
| 04/24/2002 | CN2487866Y Forced cooler |
| 04/23/2002 | US6377189 Oil well servicing system |
| 04/23/2002 | US6374926 Method of assaying downhole occurrences and conditions |
| 04/18/2002 | WO2001091206A3 Fuel cell for downhole power systems |
| 04/18/2002 | US20020045553 In situ thermal processing of a hycrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation |
| 04/18/2002 | US20020043405 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range |
| 04/18/2002 | US20020043369 Petroleum well having downhole sensors, communication and power |
| 04/18/2002 | US20020043367 In situ thermal processing of a hydrocarbon containing formation to increase a permeability of the formation |
| 04/18/2002 | US20020043366 In situ thermal processing of a coal formation and ammonia production |
| 04/18/2002 | US20020043365 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells |
| 04/11/2002 | WO2002030011A1 Multiplexed distribution of optical power |
| 04/11/2002 | WO2002029208A1 Method and system for increasing tubing resistance to pressure |
| 04/11/2002 | WO2002029207A1 Method and system for tubing a borehole in single diameter |
| 04/11/2002 | US20020040783 Subsea intervention system |
| 04/11/2002 | US20020040782 Subsea intervention |
| 04/11/2002 | US20020040781 In situ thermal processing of a hydrocarbon containing formation using substantially parallel wellbores |
| 04/11/2002 | US20020040780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture |
| 04/11/2002 | US20020040779 In situ thermal processing of a hydrocarbon containing formation to produce a mixture containing olefins, oxygenated hydrocarbons, and/or aromatic hydrocarbons |
| 04/11/2002 | US20020040778 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content |
| 04/11/2002 | CA2430243A1 Method and system for increasing tubing resistance to pressure |
| 04/11/2002 | CA2430240A1 Method and system for tubing a borehole in single diameter |