| 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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| 11/04/2004 | US20040216921 Self-controlled directional drilling systems and methods |
| 10/28/2004 | US20040211596 Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization |
| 10/28/2004 | US20040211595 System and method for automatic drilling to maintain equivalent circulating density at a preferred value |
| 10/28/2004 | US20040211569 Installation and use of removable heaters in a hydrocarbon containing formation |
| 10/27/2004 | EP1470316A1 Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence |
| 10/21/2004 | WO2004090286A1 System for managing borehole information |
| 10/21/2004 | WO2004090285A1 Real-time drilling optimization based on mwd dynamic measurements |
| 10/21/2004 | US20040206170 Method and apparatus for detecting torsional vibration with a downhole pressure sensor |
| 10/14/2004 | WO2003071091A8 Dynamic annular pressure control apparatus and method |
| 10/13/2004 | EP1466076A1 Data transmission system |
| 10/13/2004 | EP1466075A1 Remote control of drilling rigs |
| 10/12/2004 | US6802378 Method of and apparatus for directional drilling |
| 10/12/2004 | US6802215 Apparatus for weight on bit measurements, and methods of using same |
| 10/07/2004 | WO2004061258A3 Method of and apparatus for directional drilling |
| 10/07/2004 | US20040195004 Automatic drilling system |
| 10/07/2004 | US20040194985 Rock drilling rig and rock breaking machine |
| 09/30/2004 | WO2004083970A2 Distributed control system |
| 09/30/2004 | US20040190374 Earth penetrating apparatus and method employing radar imaging and rate sensing |
| 09/30/2004 | US20040188098 Combined grip control of elevator and spider slips |
| 09/29/2004 | EP1461187A1 Method and apparatus for monitoring operation of percussion device |
| 09/28/2004 | US6796191 Torque swivel and method of using same |
| 09/23/2004 | US20040183692 Control apparatus for automated downhole tools |
| 09/23/2004 | US20040182606 Method and system for predicting performance of a drilling system for a given formation |
| 09/23/2004 | US20040182574 Distributed control system |
| 09/16/2004 | US20040178003 Dynamic annular pressure control apparatus and method |
| 09/14/2004 | CA2226923C Power management system for downhole control system in a well and method of using same |
| 09/09/2004 | US20040173381 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 09/07/2004 | CA2236753C Method of controlling development of an oil or gas reservoir |
| 09/02/2004 | WO2004074630A1 Downhole measurements during non-drilling operations |
| 09/02/2004 | WO2004074627A1 Dynamic annular pressure control apparatus and method |
| 09/02/2004 | WO2004074623A2 Automated control system for back-reaming |
| 09/02/2004 | US20040168827 System and method for processing and transmitting information from measurements made while drilling |
| 09/01/2004 | EP1451444A1 Method and equipment for controlling operation of rock drilling apparatus |
| 08/31/2004 | US6785641 Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization |
| 08/19/2004 | US20040162658 Crown out-floor out device for a well service rig |
| 08/19/2004 | US20040159425 Elevator sensor |
| 08/18/2004 | EP1446554A1 Method of rock drilling |
| 08/12/2004 | US20040154832 Method and apparatus for controlling wellbore equipment |
| 08/12/2004 | CA2418717A1 Apparatus for controlling a downhole drilling motor assembly |
| 08/11/2004 | EP1445419A1 Method and apparatus for controlling wellbore equipment |
| 08/10/2004 | CA2095583C Method for detecting drillstring washouts |
| 08/05/2004 | WO2004065761A1 Hydraulic system for mining equipment and method of adjusting power of rock drill machine |
| 08/05/2004 | WO2004065749A2 Integrated drilling dynamics system and method of operating same |
| 08/05/2004 | US20040153245 Automated rig control management system |
| 08/04/2004 | EP1159510B1 Wellbore primary barrier and related systems |
| 08/03/2004 | US6772134 Control means for a horizontal boring tool |
| 08/03/2004 | US6769497 Use of axial accelerometer for estimation of instantaneous ROP downhole for LWD and wireline applications |
| 07/29/2004 | WO2004063525A1 A method and device for drilling into tubulars located within one another |
| 07/28/2004 | CN1515785A Equipment and method for defining drilling mode and using optimized formation to make assess measurement |
| 07/27/2004 | US6768106 Method of kick detection and cuttings bed buildup detection using a drilling tool |
| 07/27/2004 | US6766869 Remote lock-out system and method for a horizontal directional drilling machine |
| 07/22/2004 | WO2004061258A2 Method of and apparatus for directional drilling |
| 07/22/2004 | US20040140112 Drilling control arrangement |
| 07/20/2004 | US6766254 Method for updating an earth model using measurements gathered during borehole construction |
| 07/15/2004 | WO2004059124A1 Method and system for averting or mitigating undesirable drilling events |
| 07/15/2004 | WO2004059123A1 System and method for rig state detection |
| 07/15/2004 | WO2004059122A1 Method and system for cause-effect time lapse analysis |
| 07/15/2004 | WO2004044369A3 Method for reservoir navigation using formation pressure testing measurement while drilling |
| 07/15/2004 | WO2004001352B1 Apparatus and method of monitoring and signaling for downhole tools |
| 07/15/2004 | DE19924200B4 Drehzahl-Vorschubregelung Speed-feed control |
| 07/14/2004 | EP1436487A1 Rock drilling apparatus and rock breaking machine |
| 07/14/2004 | EP1436486A1 Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 07/14/2004 | CN1512034A Video frequency record system for drill process |
| 07/13/2004 | CA2183969C Arrangement for control means in rock drilling equipment |
| 07/08/2004 | WO2001094749A8 Real-time method for maintaining formation stability |
| 07/07/2004 | EP1435429A1 Method and system for cause-effect time lapse analysis |
| 07/07/2004 | EP1198655B1 Continuous wellbore drilling system with stationary sensor measurements |
| 07/01/2004 | WO2004055325A1 Drilling head position display |
| 07/01/2004 | US20040124012 System and method for rig state detection |
| 07/01/2004 | US20040124009 Methods and systems for averting or mitigating undesirable drilling events |
| 06/30/2004 | CN1509370A Drilling control arrangement |
| 06/29/2004 | US6757613 Graphical method for designing the trajectory of a well bore |
| 06/24/2004 | WO2004012040A3 Automated rig control management system |
| 06/24/2004 | WO2003071091A9 Dynamic annular pressure control apparatus and method |
| 06/24/2004 | US20040118612 Method of and apparatus for directional drilling |
| 06/24/2004 | US20040118608 Method of and apparatus for directional drilling |
| 06/16/2004 | EP1428976A2 System and method for processing and transmitting information from measurements made while drilling |
| 06/16/2004 | EP1163419B1 Control method for use with a steerable drilling system |
| 06/15/2004 | US6749029 Automated bore planning method and apparatus for horizontal directional drilling |
| 06/10/2004 | WO2004048249A1 Crown out-floor out device for a well service rig |
| 06/10/2004 | US20040108110 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/10/2004 | CA2503142A1 Crown out-floor out device for a well service rig |
| 06/08/2004 | US6745854 Electrically sequenced tractor |
| 06/03/2004 | US20040104046 Macro assisted control system and method for a horizontal directional drilling machine |
| 05/27/2004 | WO2004044369A2 Method for reservoir navigation using formation pressure testing measurement while drilling |
| 05/27/2004 | US20040099443 Apparatus and methods for sampling and testing a formation fluid |
| 05/21/2004 | WO2004042193A1 Arrangement for controlling rock drilling |
| 05/21/2004 | WO2004042192A1 Monitoring valve, rock drilling apparatus and a method for controlling at least two hydraulic actuators to such a monitoring valve and rock drilling apparatus |
| 05/21/2004 | WO2003036037A3 Installation and use of removable heaters in a hydrocarbon containing formation |
| 05/18/2004 | US6736213 Method and system for controlling a downhole flow control device using derived feedback control |
| 05/13/2004 | WO2004001352A3 Apparatus and method of monitoring and signaling for downhole tools |
| 05/11/2004 | US6732813 Method and device of controlling a rock drilling machine |
| 05/06/2004 | US20040084219 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 05/04/2004 | US6732052 Method and apparatus for prediction control in drilling dynamics using neural networks |
| 05/04/2004 | CA2259853C Apparatus and method for determining a drilling mode to optimize formation evaluation measurements |
| 04/29/2004 | WO2004011775A3 Measurement- while-drilling assembly using real-time toolface oriented measurements |
| 04/29/2004 | US20040079526 Measurement-while-drilling assembly using real-time toolface oriented measurements |
| 04/27/2004 | US6725948 Method of regulating the feed force of a drilling device |
| 04/20/2004 | US6722450 Adaptive filter prediction method and system for detecting drill bit failure and signaling surface operator |
| 04/20/2004 | CA2228518C Improved auger piling |