| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 05/04/2004 | US6729395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells |
| 04/30/2004 | CA2444549A1 Well treatment apparatus and method |
| 04/29/2004 | WO2004035986A1 Annulus pressure control system for subsea wells |
| 04/29/2004 | US20040081865 Fuel cell for downhole power systems |
| 04/29/2004 | US20040079524 Toroidal choke inductor for wireless communication and control |
| 04/28/2004 | EP1412030A1 Method for biosolid disposal and methane generation |
| 04/28/2004 | EP0988439B1 Casing annulus remediation system |
| 04/27/2004 | US6728638 Method of monitoring operations of multiple service vehicles at a well site |
| 04/27/2004 | US6727696 Downhole NMR processing |
| 04/27/2004 | US6725928 In situ thermal processing of a coal formation using a distributed combustor |
| 04/27/2004 | US6725927 Method and system for avoiding damage to behind-casing structures |
| 04/27/2004 | US6725925 Downhole cathodic protection cable system |
| 04/27/2004 | US6725924 System and technique for monitoring and managing the deployment of subsea equipment |
| 04/27/2004 | US6725921 In situ thermal processing of a coal formation by controlling a pressure of the formation |
| 04/27/2004 | US6725920 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products |
| 04/22/2004 | WO2004033844A2 System and method for installation and use of devices in microboreholes |
| 04/22/2004 | WO2004033840A2 Methods and apparatus for open hole drilling |
| 04/22/2004 | US20040074640 Method and apparatus |
| 04/21/2004 | CN1491315A Modelling method of reservoir stimulation treatment |
| 04/20/2004 | US6723375 An operator of the portable locator is able to mark the surface of the ground using the portable locator and while holding the portable locator in generally the same position and/ or stance as the locator is used for locating purposes |
| 04/20/2004 | US6722450 Adaptive filter prediction method and system for detecting drill bit failure and signaling surface operator |
| 04/20/2004 | US6722431 In situ thermal processing of hydrocarbons within a relatively permeable formation |
| 04/20/2004 | US6722430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio |
| 04/20/2004 | US6722429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas |
| 04/15/2004 | WO2004031531A1 Engine speed limiter for a hoist |
| 04/15/2004 | US20040069500 Apparatus and methods for tubular makeup interlock |
| 04/15/2004 | US20040069496 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling |
| 04/15/2004 | US20040069495 Annulus pressure control system for subsea wells |
| 04/15/2004 | US20040069487 System and method for installation and use of devices in microboreholes |
| 04/15/2004 | US20040069486 In situ thermal processing of a coal formation and tuning production |
| 04/14/2004 | EP1149225B1 Method for creating secondary sidetracks in a well system |
| 04/14/2004 | CN2611586Y Depth checker for downhole pipe string machinery |
| 04/13/2004 | US6719047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment |
| 04/13/2004 | CA2256725C Fuel additives |
| 04/08/2004 | WO2004029410A1 Multilateral injection/production/storage completion method |
| 04/08/2004 | WO2004029409A1 Surface controlled subsurface lateral branch safety valve |
| 04/08/2004 | WO2004029399A2 Method of well casing cathodic protection optimization using the drill stem data |
| 04/08/2004 | WO2003046329A3 A wellhead assembly for communicating with the casing hanger annulus |
| 04/08/2004 | US20040065874 Engine speed limiter for a hoist |
| 04/08/2004 | US20040065474 Methods and apparatus for open hole drilling |
| 04/08/2004 | US20040065445 Expanding tubing |
| 04/08/2004 | US20040065439 Wellbores utilizing fiber optic-based sensors and operating devices |
| 04/07/2004 | CN2610078Y Safety clamp of flexible hose |
| 04/06/2004 | US6717283 Annulus pressure operated electric power generator |
| 04/06/2004 | US6715567 Apparatus and method for forming a pilot hole in a formation |
| 04/06/2004 | US6715550 Controllable gas-lift well and valve |
| 04/06/2004 | US6715549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio |
| 04/06/2004 | US6715548 Electrical heaters may be used to heat the subterranean formation by radiation and/or conduction |
| 04/06/2004 | US6715547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation |
| 04/06/2004 | US6715546 Chemical and/or physical properties of hydrocarbon material within a subterranean formation may need to be changed to allow hydrocarbon material to be more easily removed |
| 04/06/2004 | CA2210561C Apparatus for completing a subterranean well and associated methods of using same |
| 04/01/2004 | US20040060707 Protection scheme for deployment of artificial lift devices in a wellbore |
| 04/01/2004 | US20040060703 Controlled downhole chemical injection |
| 03/30/2004 | US6712160 Leadless sub assembly for downhole detection system |
| 03/30/2004 | US6712149 Apparatus and method for spacing out of offshore wells |
| 03/30/2004 | US6712148 Junction isolation apparatus and methods for use in multilateral well treatment operations |
| 03/30/2004 | US6712144 Method for drilling multilateral wells with reduced under-reaming and related device |
| 03/30/2004 | US6712142 Apparatus and methods for expanding tubulars in a wellbore |
| 03/30/2004 | US6712139 Method of well casing cathodic protection optimization using the drill stem data |
| 03/30/2004 | US6712137 Heat exchanging to superimpose heat |
| 03/30/2004 | US6712136 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. |
| 03/30/2004 | US6712135 In situ thermal processing of a coal formation in reducing environment |
| 03/25/2004 | WO2004025077A1 Three-dimensional well system for accessing subterranean zones |
| 03/25/2004 | US20040059554 Method of assaying downhole occurrences and conditions |
| 03/25/2004 | US20040059510 System and method of managing safety compliance data |
| 03/25/2004 | US20040055752 Surface controlled subsurface lateral branch safety valve |
| 03/25/2004 | US20040055751 Alternate path multilateral production/injection |
| 03/25/2004 | US20040055750 Multilateral injection/production/storage completion system |
| 03/23/2004 | US6710720 Pressure impulse telemetry apparatus and method |
| 03/23/2004 | US6708769 Apparatus and methods for forming a lateral wellbore |
| 03/23/2004 | US6708766 Wellhead assembly for communicating with the casing hanger annulus |
| 03/23/2004 | US6708763 Method and apparatus for injecting steam into a geological formation |
| 03/23/2004 | US6708758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas |
| 03/18/2004 | WO2004011772A8 Method of controlling scale formation |
| 03/18/2004 | US20040050552 Three-dimensional well system for accessing subterranean zones |
| 03/17/2004 | EP1397661A2 Method and apparatus for downhole fluid characterization using flxural mechanical resonators |
| 03/17/2004 | EP1080006B1 Apparatus and method for deploying an object or a load on the seabed |
| 03/16/2004 | US6705085 Downhole electric power generator |
| 03/16/2004 | CA2212923C Method for sealing the junctions in multilateral wells |
| 03/16/2004 | CA2210562C Apparatus for completing a subterranean well and associated methods of using same |
| 03/16/2004 | CA2209827C Method and apparatus for transverse electromagnetic induction well logging |
| 03/11/2004 | US20040045742 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
| 03/10/2004 | EP1395732A1 In-situ casting of well equipment |
| 03/10/2004 | CN2606178Y Assembled operatnig platform in water oil well |
| 03/09/2004 | US6702016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer |
| 03/06/2004 | CA2395963A1 Percussive or rotary rock drill guard |
| 03/04/2004 | WO2004018834A1 Method for controlled placement of oilfield chemicals and composition useful for practicing same |
| 03/04/2004 | US20040043501 Monitoring reservoir conditions, estimating and quantifying concentrations of oil and gas in earth formations and determining operating and physical conditions of down hole tools |
| 03/04/2004 | US20040040718 Downhole injection system |
| 03/03/2004 | EP0900320B1 System and method for placement and retrieval of a subsurface diverting tool used in drilling and completing wells |
| 03/03/2004 | CN2605380Y Rotary wellhead device for preventing oil pipe bias-wear |
| 03/02/2004 | US6698515 In situ thermal processing of a coal formation using a relatively slow heating rate |
| 03/02/2004 | CA2210563C Apparatus for completing a subterranean well and associated methods of using same |
| 02/26/2004 | WO2004016904A1 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| 02/26/2004 | US20040035581 Multilateral well completion |
| 02/26/2004 | CA2502654A1 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| 02/24/2004 | US6695539 Apparatus and methods for remote installation of devices for reducing drag and vortex induced vibration |
| 02/24/2004 | CA2268104C Method of obtaining improved geophysical information about earth formations |
| 02/24/2004 | CA2264360C Downhole tool catcher |
| 02/21/2004 | CA2437635A1 Method and apparatus for wellbore fluid treatment |