| 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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| 05/30/2012 | CN202250029U Hydraulic control system for power head of rotary drilling jig and rotary drilling jig |
| 05/30/2012 | CN202250028U Pressure-control well drilling monitoring system for oil and gas wells |
| 05/30/2012 | CN202250027U Closed-loop managed pressure drilling system |
| 05/30/2012 | CN202250026U Soil unloading control system for power head of rotary drilling rig and rotary drilling rig |
| 05/30/2012 | CN102477859A 远程控制台数据记录模块 Remote console data logging module |
| 05/30/2012 | CN101876823B Oil field control system |
| 05/29/2012 | US8188746 Tracking the positional relationship between a boring tool and at least one buried lines |
| 05/29/2012 | CA2577031C Method of real-time drilling simulation |
| 05/24/2012 | CA2818072A1 Method of and apparatus for drilling a subterranean borehole |
| 05/23/2012 | CN202227992U Drilling mast protection device for rotary drilling machine |
| 05/23/2012 | CN102472096A 用于控制岩石凿钻的方法和设备 Method and apparatus for controlling a rock drilling rig |
| 05/23/2012 | CN102465694A 旋挖钻机的自动复位系统 Rotary drilling rig automatic reset system |
| 05/23/2012 | CN101180451B Control device |
| 05/22/2012 | US8185366 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 05/22/2012 | US8181510 System and method for correcting errors in depth for measurements made while drilling |
| 05/22/2012 | CA2710187C Spring-operated anti-stall tool |
| 05/18/2012 | WO2012064944A2 Drilling control system and method |
| 05/18/2012 | WO2012064728A2 Sensor on a drilling apparatus |
| 05/18/2012 | WO2012064626A2 Apparatus and method for automated drilling of a borehole in a subsurface formation |
| 05/18/2012 | CA2817515A1 Apparatus and method for automated drilling of a borehole in a subsurface formation |
| 05/18/2012 | CA2817076A1 Sensor on a drilling apparatus |
| 05/18/2012 | CA2814862A1 Drilling control system and method |
| 05/17/2012 | US20120118637 Drilling Advisory Systems And Methods Utilizing Objective Functions |
| 05/17/2012 | US20120118636 Apparatus and method for automated drilling of a borehole in a subsurface formation |
| 05/16/2012 | CN202220594U Constant pressure drilling automatic control system of full-hydraulic core drilling machine |
| 05/16/2012 | CN202220593U Parameter acquisition and control system for full-hydraulic core drilling machine |
| 05/09/2012 | EP2450527A1 Method of displaying well drilling operations |
| 05/09/2012 | CN102444382A Well drilling technology for abutting along drilling |
| 05/08/2012 | CA2678668C Rig engine control |
| 05/08/2012 | CA2623623C Erosional protection of fiber optic cable |
| 05/03/2012 | WO2012058435A2 Drilling control system and method |
| 05/03/2012 | US20120103083 Measuring device |
| 05/03/2012 | DE102010046849B4 Sensorbasierte Regelung von Schwingungen in schlanken Kontinua,speziell Torsionsschwingungen in Tiefbohsträngen Sensor-based control of vibration in slender continua, especially torsional vibrations in Tiefbohsträngen |
| 05/03/2012 | CA2815658A1 Drilling control system and method |
| 05/02/2012 | EP2446114A1 Method and apparatus for controlling rock drilling |
| 05/02/2012 | EP2446113A1 Control system, rock drill rig and control method |
| 05/02/2012 | CN102434100A Rotary drilling rig and automatically deviation-rectifying system thereof |
| 04/26/2012 | US20120097451 Electrical controller for anti-stall tools for downhole drilling assemblies |
| 04/26/2012 | US20120097449 Method And Apparatus For Controlling Rock Drilling |
| 04/26/2012 | DE112008003302T5 Verfahren und Systeme zur Abschätzung von Bohrlochereignissen Methods and systems for estimating downhole events |
| 04/25/2012 | CN102425401A Electro-hydraulic logic control loop of rock drilling actions of hydraulic rock drilling machine |
| 04/20/2012 | CA2755165A1 Electrical controller for anti-stall tools for downhole drilling assemblies |
| 04/19/2012 | WO2012003329A3 Systems and methods for compressing data and controlling data compression in borehole communication |
| 04/18/2012 | CN202194644U 一钳双控装置 A clamp dual-control device |
| 04/18/2012 | CN202194643U 钻井透明仪表 Drilling transparent instrument |
| 04/18/2012 | CN202194590U 井架式机电一体化修井机 Mechatronics workover rig derrick type |
| 04/18/2012 | CN202194568U 一种钻机油改电设备的变频驱动装置 A variable frequency drive electric drill oil change equipment |
| 04/18/2012 | CN102418510A 旋挖钻机钻杆带杆卡杆监控系统和方法 Rotary drilling rig rod card drill rod with a monitoring system and method |
| 04/18/2012 | CN102418509A 一种控制压力钻井技术室内试验系统及方法 A control pressure drilling technology laboratory test system and method |
| 04/17/2012 | US8157023 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 04/17/2012 | CA2519111C Distributed control system |
| 04/12/2012 | WO2012047863A2 Remotely controlled apparatus for downhole applications and related methods |
| 04/12/2012 | WO2012047837A2 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 04/12/2012 | CA2813620A1 Remotely controlled apparatus for downhole applications and related methods |
| 04/12/2012 | CA2813611A1 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 04/11/2012 | EP2438269A2 Wireless transmission system and system for monitoring a drilling rig operation |
| 04/11/2012 | CN202187756U 石油钻机综合数据记录仪 Oil rig integrated data logger |
| 04/11/2012 | CN102410010A 一种旋挖钻机及其主卷扬浮动系统 One kind of rotary drilling rig and its main hoist floating system |
| 04/10/2012 | US8151904 Method for improved well control with a downhole device |
| 04/05/2012 | WO2012041745A1 Sensor-based control of vibrations in slender continua, specifically torsional vibrations in deep-hole drill strings |
| 04/05/2012 | CA2845916A1 Remote controlled vehicle |
| 04/05/2012 | CA2812462A1 Sensor-based control of vibrations in slender continua, specifically torsional vibrations in deep-hole drill strings |
| 04/04/2012 | CN202181844U 一种与工程机械配套的全液压潜孔钻机 One kind of construction machinery and hydraulic submersible drilling rig |
| 04/03/2012 | US8146681 Drilling tool and drilling method |
| 04/03/2012 | US8146678 Rock drilling apparatus and method for controlling rock drilling apparatus |
| 04/03/2012 | CA2615229C Method and apparatus for utilizing pressure signature in conjunction with fall time as indicator in oil and gas wells |
| 03/29/2012 | WO2012039666A1 Method and device for monitoring down-the-hole percussion drilling |
| 03/29/2012 | DE102010046849A1 Sensorbasierte Regelung von Schwingungen in schlanken Kontinua,speziell Torsionsschwingungen in Tiefbohsträngen Sensor-based control of vibration in slender continua, especially torsional vibrations in Tiefbohsträngen |
| 03/29/2012 | CA2809004A1 Method and device for monitoring down-the-hole percussion drilling |
| 03/28/2012 | EP2147277B1 Loading of explosives |
| 03/28/2012 | EP1299751B1 Method for modeling an arbitrary well path in a hydrocarbon reservoir using adaptive meshing |
| 03/28/2012 | CN202176326U 矿井钻机及其气水自动切换装置 Mine gas-water drilling rigs and automatic switching device |
| 03/28/2012 | CN102395754A A method and system for monitoring a drilling operation |
| 03/28/2012 | CN102392630A rotary drilling rig and control mode thereof |
| 03/27/2012 | US8145462 Field synthesis system and method for optimizing drilling operations |
| 03/27/2012 | CA2496162C Wellbore drilling system and method |
| 03/21/2012 | CN102384120A Volume speed-regulation hydraulic system of unit head of core drill |
| 03/21/2012 | CN102383778A Logic control loop for rock drilling operations of hydraulic rock drilling machine |
| 03/21/2012 | CN102383777A Measuring and controlling device used for rotary steering drilling system and measuring and controlling method utilizing same |
| 03/21/2012 | CN102383776A Drilling machine and method, controller and system for monitoring clamping and joint of drilling rods of drilling machine |
| 03/20/2012 | US8136612 Constant-mode auto-drill with pressure derivative control |
| 03/20/2012 | US8136609 Multiple input scaling autodriller |
| 03/20/2012 | CA2675978C Method, device and system for drilling rig modification |
| 03/20/2012 | CA2662935C System and method for selective activation of downhole devices in a tool string |
| 03/20/2012 | CA2635331C Method of automatically controlling the trajectory of a drilled well |
| 03/20/2012 | CA2469029C Remote control of drilling rigs |
| 03/15/2012 | WO2012031311A1 Improved rock drill |
| 03/15/2012 | CA2810914A1 Improved rock drill |
| 03/14/2012 | CN102373915A Bit feeding system of drilling machine |
| 03/13/2012 | US8132452 Method for sampling fluid from a well with a gas trap |
| 03/13/2012 | CA2599097C Downlink based on pump noise |
| 03/07/2012 | CN202157796U 钻机电控系统 Drilling electrical control system |
| 03/07/2012 | CN202157795U Pressure compensation device for pressure control drilling system |
| 03/07/2012 | CN101358520B Thrust execution device of automatic vertical drilling |
| 03/01/2012 | WO2012027668A1 Remotely-controlled downhole device and method for using same |
| 03/01/2012 | WO2012027637A1 Magnetic latching device for downhole wellbore intercept operations |
| 03/01/2012 | WO2012026875A1 Method and system for controlling a compressor at a rock drilling apparatus and a rock drilling apparatus |
| 03/01/2012 | WO2012026873A1 Method and system for controlling a power source at a rock drilling apparatus and rock drilling apparatus |
| 03/01/2012 | US20120048619 System, method and apparatus for drilling agitator |
| 03/01/2012 | US20120048618 Method for determining uncertainty with projected wellbore position and attitude |