| 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) |
|---|
| 03/24/2005 | US20050061549 System and method for forming an underground bore |
| 03/23/2005 | EP1228290A4 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 03/23/2005 | CN1599836A Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence |
| 03/23/2005 | CN1598243A Intelligent drilling monitoring system for oil field |
| 03/22/2005 | US6868920 Methods and systems for averting or mitigating undesirable drilling events |
| 03/17/2005 | US20050060096 Method for improving drilling depth measurements |
| 03/17/2005 | US20050056465 Automatic downlink system |
| 03/17/2005 | US20050056439 Method and equipment for controlling operation of rock drilling apparatus |
| 03/17/2005 | CA2743617A1 Automatic downlink system |
| 03/16/2005 | EP1514996A1 Drilling system with remote directional control |
| 03/16/2005 | EP1226336A4 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 03/16/2005 | CN1594830A Intelligent oil recovery control system and control method thereof |
| 03/16/2005 | CN1594828A Control device for kill job |
| 03/09/2005 | CN2683848Y Rotary disc reversing prevention braking mechanism for well drilling |
| 03/08/2005 | US6863136 Smart-ultrasonic/sonic driller/corer |
| 02/24/2005 | WO2005017315A1 Measurement-while-drilling assembly using real-time toolface oriented measurements |
| 02/23/2005 | EP1507955A1 Automated method and system for determining the state of well operations |
| 02/23/2005 | CN2680852Y Wireless intelligent monitoring system at well mouth |
| 02/23/2005 | CN1584289A Drilling multistage throttling process of high-pressure gas-oil well |
| 02/23/2005 | CN1584278A Multi-drilling bit high-speed rotary punching apparatus |
| 02/17/2005 | WO2003035801A3 Producing hydrocarbons and non-hydrocarbon containing materials from a hydrocarbon containing formation |
| 02/17/2005 | US20050038631 Drill bit performance analysis tool |
| 02/15/2005 | US6854953 Speed governor |
| 02/10/2005 | WO2005012688A1 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 02/08/2005 | CA2316903C Determining the shape and orientation of a borehole |
| 02/02/2005 | EP1502005A1 Method and apparatus for determining drill string movement mode |
| 02/02/2005 | EP1502004A1 System and method for interpreting drilling data |
| 02/02/2005 | EP1502003A2 Method for improving drilling depth measurements |
| 02/02/2005 | CN1575377A Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 02/02/2005 | CN1575376A In situ recovery from a hydrocarbon containing formation using barriers |
| 02/02/2005 | CN1575375A In situ updating of coal |
| 02/02/2005 | CN1575374A Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 02/02/2005 | CN1575373A In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 01/27/2005 | WO2005008022A1 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 01/27/2005 | WO2005008021A1 Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bits |
| 01/27/2005 | WO2005008020A1 Methods for designing fixed cutter bits and bits made using such methods |
| 01/27/2005 | WO2005008019A1 Methods for modeling, designing, and optimizing the performance of drilling tool assemblies |
| 01/27/2005 | WO2005008017A2 Instrumented drill head, related drilling/bolting machines, and methods |
| 01/27/2005 | WO2004065749A3 Integrated drilling dynamics system and method of operating same |
| 01/27/2005 | CA2748690A1 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 01/27/2005 | CA2748559A1 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 01/27/2005 | CA2748424A1 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 01/27/2005 | CA2748423A1 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 01/27/2005 | CA2734730A1 Methods for designing fixed cutter bits and bits made using such methods |
| 01/27/2005 | CA2531717A1 Methods for modeling, designing, and optimizing the performance of drilling tool assemblies |
| 01/26/2005 | CN2674087Y Automatic control system for explosion-proof phase-open braking |
| 01/26/2005 | CN2674064Y 遥控自动钻机 Remote Auto Rig |
| 01/26/2005 | CN1571878A Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 01/26/2005 | CN1571713A Method and apparatus for monitoring operation of percussion device |
| 01/25/2005 | US6845819 Down hole tool and method |
| 01/18/2005 | US6843332 Three dimensional steerable system and method for steering bit to drill borehole |
| 01/18/2005 | US6843317 System and method for autonomously performing a downhole well operation |
| 01/18/2005 | US6843120 Apparatus and method of monitoring and signaling for downhole tools |
| 01/13/2005 | WO2005002801A1 Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device |
| 01/13/2005 | US20050010382 Methods for evaluating and improving drilling operations |
| 01/13/2005 | US20050006145 Control Method for use with a Steerable Drilling System |
| 01/13/2005 | US20050006143 Method and arrangement for controlling percussion rock drilling |
| 01/12/2005 | CN2670598Y Multifunctional internet long-range monitoring system of petroleum drilling well |
| 01/12/2005 | CN2670593Y Power recovering brake system of petroleum drilling machine |
| 01/11/2005 | CA2269498C Drilling system with integrated bottom hole assembly |
| 01/11/2005 | CA2218259C Motor drive actuator for downhole flow control devices |
| 01/04/2005 | CA2337030C Downhole multiplexer and related methods |
| 12/29/2004 | EP1490582A1 Method of localizing a hole drilled with a rock drilling machine |
| 12/23/2004 | US20040256152 Real-time drilling optimization based on MWD dynamic measurements |
| 12/23/2004 | US20040256113 Methods and apparatus for actuating a downhole tool |
| 12/22/2004 | EP1488073A1 Dynamic annular pressure control apparatus and method |
| 12/20/2004 | CA2471796A1 Drill bit performance analysis tool |
| 12/18/2004 | CA2694851A1 Methods and apparatus for actuating a downhole tool |
| 12/16/2004 | US20040251049 Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 12/16/2004 | US20040251027 Co-pilot measurement-while-fishing tool devices and methods |
| 12/14/2004 | US6832158 Real-time method for maintaining formation stability and monitoring fluid-formation interaction |
| 12/09/2004 | US20040245018 Electrically sequenced tractor |
| 12/09/2004 | US20040245017 Integrated drilling dynamics system |
| 12/09/2004 | US20040245016 Method for reservoir navigation using formation pressure testing measurement while drilling |
| 12/09/2004 | US20040244493 Method and apparatus for monitoring operation of percussion device |
| 12/02/2004 | WO2004104358A2 Continuous on-bottom directional drilling method and system |
| 12/02/2004 | US20040243309 Automated bore planning system for horizontal directional drilling |
| 12/02/2004 | US20040238222 Directional borehole drilling system and method |
| 12/02/2004 | DE10320662A1 Verfahren und Vorrichtung zur Bodenbearbeitung Method and device for working the soil |
| 11/30/2004 | US6826486 Methods and apparatus for predicting pore and fracture pressures of a subsurface formation |
| 11/30/2004 | CA2100306C Torque indicator |
| 11/25/2004 | WO2004101944A2 Method of and system for directional drilling |
| 11/23/2004 | US6820702 Automated method and system for recognizing well control events |
| 11/18/2004 | WO2004099556A1 System and method for forming an underground bore |
| 11/18/2004 | US20040226748 Automated control system for back-reaming |
| 11/17/2004 | EP1477633A2 Method and apparatus for soil working |
| 11/17/2004 | EP1476639A1 Acoustic position measurement system for well bore formation |
| 11/17/2004 | EP0842329B2 Improved auger piling |
| 11/16/2004 | US6817425 Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator |
| 11/11/2004 | WO2004097172A1 System and method for automatic drilling |
| 11/11/2004 | WO2004044369B1 Method for reservoir navigation using formation pressure testing measurement while drilling |
| 11/11/2004 | US20040222023 Continuous on-bottom directional drilling method and system |
| 11/11/2004 | US20040222019 Measurement-while-drilling assembly using real-time toolface oriented measurements |
| 11/11/2004 | US20040222017 Soil working method and device |
| 11/11/2004 | US20040221985 Drill string design methodology for mitigating fatigue failure |
| 11/10/2004 | CN2654855Y Intelligent controller for petroleum drilling machine |
| 11/09/2004 | US6816435 Method for estimating the position of a drill |
| 11/04/2004 | WO2004094768A2 Drill string design methodology for mitigating fatigue failure |
| 11/04/2004 | US20040220742 Real-time method for maintaining formation stability and monitoring fluid-formation interaction |
| 11/04/2004 | US20040216922 Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence |