| 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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| 10/20/2010 | CN101868595A Automated directional drilling apparatus and methods |
| 10/20/2010 | CN101864943A Trenchless guiding control equipment and method |
| 10/19/2010 | CA2652477C Determination of azimuthal offset and radius of curvature in a deviated borehole using periodic drill string torque measurements |
| 10/19/2010 | CA2603653C Method for determination and correction of a drilling malfunction for a drilling unit |
| 10/19/2010 | CA2557259C Safemode operating system for a drilling or service rig |
| 10/13/2010 | CN201606115U 稠油热采太阳能供电汽窜预警器 Heavy oil thermal recovery steam channeling solar powered warning device |
| 10/13/2010 | CN201606082U 新型管棚钻机 The new pipe roof rig |
| 10/13/2010 | CN201606053U 输气站外井终端实时监控系统 Gas Stations wells outside the terminal real-time monitoring system |
| 10/13/2010 | CN201606052U 一种基于外转子电机的海洋钻修机的控制系统 An external rotor motor based marine drilling and workover control system machine |
| 10/13/2010 | CN201606051U 钻井水站自动控制系统 Drilling water station automatic control system |
| 10/12/2010 | US7813935 System for evaluating over and underbalanced drilling operations |
| 10/06/2010 | EP2235323A2 Pulse rate of penetration enhancement device and method |
| 10/06/2010 | EP2235318A1 Method for detecting formation pressure |
| 10/06/2010 | CN201595446U 快退式司钻座椅 Rewind type driller seat |
| 10/06/2010 | CN1575374B Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 10/06/2010 | CN101852076A Underground working condition simulation method for controlled pressure drilling experiment and test |
| 09/30/2010 | US20100243326 Common Interface Architecture for Horizontal Directional Drilling Machines and Walk-Over Guidance Systems |
| 09/29/2010 | EP2232007A2 Mechanical actuator with electronic adjustment |
| 09/23/2010 | WO2009062725A3 Methods of drilling with a downhole drilling machine |
| 09/23/2010 | CA2755384A1 A method and system for monitoring a drilling operation |
| 09/22/2010 | CN201588543U Radial well drilling device |
| 09/22/2010 | CN101842194A A pulse generating device and a rock drilling rig comprising such a device |
| 09/15/2010 | CN201581886U Sand retaining plate device |
| 09/15/2010 | CN101832130A Surface real-time processing of downhole data |
| 09/10/2010 | WO2010101473A1 Drilling control method and system |
| 09/10/2010 | WO2010043951A4 System and method for online automation |
| 09/08/2010 | EP2225439A2 Method and apparatus for hydraulic steering of downhole rotary drilling systems |
| 09/08/2010 | CN201576526U Underground high-power electromagnet and underground instrument driving system |
| 09/08/2010 | CN201574744U Oilfield control system |
| 09/08/2010 | CN101824964A Downhole drill of intelligent underground multi-branch horizontal drilling completion system |
| 09/02/2010 | WO2009094066A3 Method and system for fracturing subsurface formations during the drilling thereof |
| 09/01/2010 | EP2222937A2 An intelligent drilling advisor |
| 09/01/2010 | EP2222439A1 A pulse generating device and a rock drilling rig comprising such a device |
| 09/01/2010 | CN201568042U Pressure compensation device for managed pressure drilling |
| 09/01/2010 | CN201568041U Synchronous control system of injection head and winding drum of continuous string coiled tubing unit |
| 09/01/2010 | CN201568040U Automatic control system with single chip microcomputer used as upper computer for vertical oil pumping unit |
| 09/01/2010 | CN101821472A Devices and methods for dynamic boring procedure reconfiguration |
| 09/01/2010 | CN101818639A Automatic control device of oil pipe clamping mechanism of non-well killing workover rig |
| 08/31/2010 | US7788074 Method of modelling the production of an oil reservoir |
| 08/31/2010 | US7786732 Apparatus for monitoring a positional relationship between a boring tool and an inground line |
| 08/31/2010 | CA2615481C Method and apparatus for determining drill string movement mode |
| 08/26/2010 | WO2010096346A2 Drilling scorecard |
| 08/26/2010 | US20100212963 Measurement while drilling apparatus and method of using the same |
| 08/26/2010 | CA2751029A1 Drilling scorecard |
| 08/25/2010 | EP2220336A1 Rock drilling rig and method for drilling |
| 08/25/2010 | CN201560921U Automatic variable-frequency and variable control mechanism for pumping station of mining surface protrusion-dispelling drilling machine in high Outbursting coal mine |
| 08/25/2010 | CN201560712U Rock drill bit cooling system |
| 08/25/2010 | CN1890452B Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore |
| 08/25/2010 | CN101371098B Measuring device, rock breaking device and method of measuring stress wave |
| 08/19/2010 | US20100211362 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 08/18/2010 | CN201554444U Digital weight indicator |
| 08/18/2010 | CN201554443U Electric hydraulic control system for oil drilling rig hydraulic disc braking device |
| 08/18/2010 | CN201554393U Oceanic winch compensating system |
| 08/18/2010 | CN101806209A Intelligent control device for deep hole drill carriage |
| 08/17/2010 | US7775297 Multiple input scaling autodriller |
| 08/17/2010 | US7775099 Downhole tool sensor system and method |
| 08/11/2010 | CN201546693U Operation protection device of well workover operation vehicle |
| 08/11/2010 | CN201546692U Device for avoiding overpressure work of hydraulic drilling machine |
| 08/11/2010 | CN201546630U Novel control device for clasping of drill stand of drill machine |
| 08/11/2010 | CN101802346A Method and software product for designing drilling pattern for rock cavity excavation |
| 08/11/2010 | CN101798919A Method for monitoring whether drilling mud is invaded by grouting fluid during drilling and grouting parallel operation |
| 08/11/2010 | CN101798916A Rock entering drilling machine and control system and control method thereof |
| 08/10/2010 | CA2612219C Arrangement for positioning drilling unit |
| 08/05/2010 | WO2010086673A1 A riser and a method for identifying a riser |
| 08/05/2010 | WO2010086671A1 A method for handling a component in the construction, maintenance and repair of wells |
| 08/05/2010 | US20100193245 System and method for testing drilling control systems |
| 08/05/2010 | US20100193184 System and method of monitoring flow in a wellbore |
| 08/05/2010 | CA2751079A1 A method for handling a component in the construction, maintenance and repair of wells |
| 08/04/2010 | EP2212519A1 Devices and methods for power control in horizontal directional drilling |
| 08/04/2010 | CN201539211U Double-rig drilling system |
| 08/04/2010 | CN101793139A Automatic rotary positioning system for rotary drilling rig |
| 07/28/2010 | CN101787876A Rollover protection system of rotary drilling rig |
| 07/27/2010 | US7762352 Arrangement and method for controlling drilling parameters |
| 07/27/2010 | US7762346 Method and system for collaring |
| 07/27/2010 | CA2516277C Dynamic annular pressure control apparatus and method |
| 07/23/2010 | CA2653115A1 Method to determine rock properties from drilling logs |
| 07/22/2010 | WO2010043951A3 System and method for online automation |
| 07/22/2010 | DE102008052510B3 Verfahren zum Bestimmen des Verschleißes eines mit Kräften belasteten Gestänges einer Erdarbeitsvorrichtung A method for determining the wear of a loaded with forces the linkage of a trench-work |
| 07/21/2010 | CN201531263U Intelligent controlling and monitoring device for rotary drill |
| 07/20/2010 | US7759824 System and method for detecting an underground object using magnetic field sensing |
| 07/20/2010 | US7757781 Downhole motor assembly and method for torque regulation |
| 07/20/2010 | US7757552 Downhole tool sensor system and method |
| 07/15/2010 | WO2010079379A1 Drillstring dynamics |
| 07/15/2010 | US20100175922 Directional drilling control devices and methods |
| 07/15/2010 | CA2748857A1 Drillstring dynamics |
| 07/14/2010 | CN201526307U Drilling engineering monitoring system based on wireless sensor network |
| 07/14/2010 | CN101778997A System and method for performing oilfield simulation operations |
| 07/14/2010 | CN101775979A Simplex communication instrument for oil extraction |
| 07/13/2010 | CA2562339C A component used in the formation, construction, repair and production phase of a well bore and a method for identifying same |
| 07/06/2010 | CA2604810C Method for selecting and using drilling operating parameters for a drilling unit |
| 07/01/2010 | US20100163308 Directional drilling control using periodic perturbation of the drill bit |
| 07/01/2010 | US20100163307 Drill Bits With a Fluid Cushion For Reduced Friction and Methods of Making and Using Same |
| 07/01/2010 | US20100163306 Modeling Vibration Effects Introduced By Mud Motor |
| 06/30/2010 | EP2202382A2 Directional Drilling Control Using Periodic Perturbation of the Drill Bit |
| 06/30/2010 | CN101765694A Method and device for controlling a rock drill rig |
| 06/29/2010 | US7743848 Boring tool tracking fundamentally based on drill string length, pitch, and roll |
| 06/24/2010 | WO2010070361A1 Method and apparatus for identifying parts used in the construction and maintenance of an oil or gas well |
| 06/24/2010 | WO2010027839A3 Drill bit with weight and torque sensors |
| 06/24/2010 | US20100154531 Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements |
| 06/23/2010 | CN201513164U Drilling machine drill-clamping preventing automatic control device for mine |