| Patents for E21B 44 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions (5,356) |
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| 01/25/2006 | CN2753877Y Ball plug gas-life process ball-throwing time control hydraulic station |
| 01/24/2006 | US6988566 Acoustic position measurement system for well bore formation |
| 01/19/2006 | US20060011360 Monitoring valve, rock drilling apparatus and a method for controlling at least two hydraulic actuators to such a monitoring valve and rock drilling apparatus |
| 01/18/2006 | EP1617038A1 A rock drilling equipment |
| 01/18/2006 | EP0948700B1 Whipstock |
| 01/18/2006 | CN1721653A Electric control hydraulic braking arrangement |
| 01/12/2006 | WO2006003259A1 Method for controlling percussion device, software product, and percussion device |
| 01/11/2006 | EP1613837A1 System for managing borehole information |
| 01/11/2006 | EP1502005A4 Method and apparatus for determining drill string movement mode |
| 01/11/2006 | EP1502004A4 System and method for interpreting drilling data |
| 01/11/2006 | EP1502003A4 Method for improving drilling depth measurements |
| 01/11/2006 | CN1718995A System of detecting state and failure diagnosis of oil well drill pump |
| 01/10/2006 | CA2278933C Tool and method for drilling a lateral well |
| 01/04/2006 | EP0694114B2 Automatic drilling system |
| 01/04/2006 | CN1235062C Method for expressing multi-phase liquid flow physical systems formation |
| 01/03/2006 | US6982008 Coiled tubing wellbore cleanout |
| 12/29/2005 | WO2005047640A3 Sytem and method for damping vibration in a drill string |
| 12/29/2005 | US20050284666 Geosynthetic composite for borehole strengthening |
| 12/29/2005 | US20050284661 Method and system for predicting performance of a drilling system for a given formation |
| 12/29/2005 | US20050284659 Closed-loop drilling system using a high-speed communications network |
| 12/28/2005 | EP1608843A1 Real-time drilling optimization based on mwd dynamic measurements |
| 12/22/2005 | WO2005122313A2 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/22/2005 | WO2005121506A1 Method and system for collaring |
| 12/22/2005 | CA2568593A1 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/22/2005 | CA2561894A1 Method and system for collaring |
| 12/21/2005 | EP1607571A2 Steerable modular drilling assembly |
| 12/21/2005 | EP1606677A2 Distributed control system |
| 12/21/2005 | EP1606493A2 Automated control system for back-reaming |
| 12/21/2005 | EP1350309A4 Internal power source for downhole detection system |
| 12/21/2005 | EP0862682B1 Autonomous downhole oilfield tool |
| 12/20/2005 | CA2258316C Method and arrangement for controlling rock drilling |
| 12/15/2005 | US20050278123 Automated bore planning system for horizontal directional drilling |
| 12/14/2005 | CN1707289A Adaptive borehole assembly visualization in a three-dimensional scene |
| 12/08/2005 | US20050273302 Dynamically balanced cutting tool system |
| 12/08/2005 | US20050269082 Control method for downhole steering tool |
| 12/08/2005 | US20050269080 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/06/2005 | CA2358618C Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization |
| 12/01/2005 | WO2005114542A2 Methods for evaluating and improving drilling operations |
| 12/01/2005 | WO2005113935A2 Methods and apparatus for using formation property data |
| 12/01/2005 | WO2005113930A1 Automatic drilling system |
| 12/01/2005 | US20050267719 Field synthesis system and method for optimizing drilling operations |
| 12/01/2005 | CA2567656A1 Methods for evaluating and improving drilling operations |
| 11/30/2005 | CN2743539Y Solar energy type oil well radio monitoring instrument |
| 11/29/2005 | US6968909 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model |
| 11/29/2005 | US6968905 Distributed control system |
| 11/24/2005 | US20050257960 Methods and apparatus for using formation property data |
| 11/22/2005 | CA2320558C Motion compensator for drilling from a floater |
| 11/17/2005 | US20050252686 Electrically sequenced tractor |
| 11/16/2005 | EP1595057A1 Dynamic annular pressure control apparatus and method |
| 11/15/2005 | CA2172802C Drill automation control system |
| 11/12/2005 | CA2811046A1 Method and system for reservoir characterization in connection with drilling operations |
| 11/10/2005 | US20050247483 Remote control for a drilling machine |
| 11/02/2005 | EP1590551A1 Hydraulic system for mining equipment and method of adjusting power of rock drill machine |
| 11/01/2005 | CA2245359C Pressure modulation valve assembly |
| 10/27/2005 | WO2005100733A1 A component used in the formation, construction, repair and production phase of a well bore and a method for identifying same |
| 10/27/2005 | US20050236186 Boring tool control using remote locator |
| 10/27/2005 | US20050236185 Mapping tool for tracking and/or guiding an underground boring tool |
| 10/27/2005 | US20050236184 Method and apparatus and program storage device adapted for automatic drill bit selection based on earth properties and wellbore geometry |
| 10/27/2005 | US20050236016 Coiled tubing wellbore cleanout |
| 10/26/2005 | EP1588021A1 A method and device for drilling into tubulars located within one another |
| 10/25/2005 | US6957707 Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence |
| 10/25/2005 | US6957575 Apparatus for weight on bit measurements, and methods of using same |
| 10/20/2005 | US20050232708 Automatically adjustable caisson clamp |
| 10/20/2005 | US20050230110 Apparatus identification systems and methods |
| 10/20/2005 | US20050230109 Apparatus identification systems and methods |
| 10/19/2005 | EP1554462A4 Apparatus and method of monitoring and signaling for downhole tools |
| 10/19/2005 | CN2734999Y Drilling parameter apparatus set by touch screen |
| 10/19/2005 | CN2734998Y Automatic detection and alarm apparatus for water intake of lubricating oil |
| 10/18/2005 | CA2221301C Adjustable stabilizer for directional drilling |
| 10/12/2005 | EP1301812B1 Method and system for modeling geological structures using an unstructured four-dimensional mesh |
| 10/12/2005 | CN2732995Y Automatic control system for hydraulic following screw pile |
| 10/11/2005 | CA2236568C Method for evaluating the power output of a drilling motor under downhole conditions |
| 10/06/2005 | WO2005093212A1 Method and system for detecting conditions inside a wellbore |
| 10/06/2005 | US20050222772 Oil rig choke control systems and methods |
| 10/06/2005 | US20050217896 Adaptive borehole assembly visualization in a three-dimensional scene |
| 10/05/2005 | CN2731095Y Collection controller for oil field |
| 10/05/2005 | CN2731089Y Monitor for water injection system |
| 09/29/2005 | WO2005090750A1 Method and apparatus and program storage device adapted for automatic drill string design based on wellbore geometry and trajectory requirements |
| 09/29/2005 | WO2005090749A1 Method and apparatus and program storage device adapted for automatic drill bit selection based on earth properties |
| 09/29/2005 | US20050216116 Microprocessor integrated multifunction hoist system controller |
| 09/29/2005 | US20050211470 Bottom hole assembly |
| 09/29/2005 | US20050211468 Method and apparatus and program storage device adapted for automatic drill string design based on wellbore geometry and trajectory requirements |
| 09/28/2005 | CN2729309Y Intelligent drilling monitoring system for oil field |
| 09/27/2005 | CA2502165A1 Bottom hole assembly |
| 09/22/2005 | WO2005086565A2 Leadless sub assembly for downhole detection system |
| 09/22/2005 | DE102005008430A1 Verfahren und Vorrichtung zum Bohren eines Bohrlochs von einem entfernten Ort aus Method and apparatus for drilling a borehole from a remote location |
| 09/22/2005 | CA2789735A1 Providing a local response to a local condition in an oil well |
| 09/22/2005 | CA2789217A1 Drilling method |
| 09/22/2005 | CA2789215A1 Drilling with a muscular drill string |
| 09/22/2005 | CA2789181A1 System for controlling oil well drill dynamics |
| 09/21/2005 | CN1671944A Installation and use of removable heaters in a hydrocarbon containing formation |
| 09/15/2005 | WO2005084246A2 Safemode operating system for a drilling or service rig |
| 09/15/2005 | US20050199388 Safemode operating system for a drilling or service rig |
| 09/14/2005 | CN2725524Y Gas tracer filling device |
| 09/13/2005 | US6944547 Automated rig control management system |
| 09/13/2005 | US6942044 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 09/08/2005 | US20050193811 Method and system for detecting conditions inside a wellbore |
| 09/07/2005 | CN1666006A Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 09/07/2005 | CN1664308A Wellbore drilling system and method |
| 09/07/2005 | CN1218114C Monitor system for drilling procedure |