| 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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| 05/11/2011 | CN201828928U Oil field managed object based on identification system with two-dimensional code technology |
| 05/11/2011 | CN201826828U Automatic oil and gas drill throttle pressure monitoring system |
| 05/11/2011 | CN101343995B Control device of down-hole horizontal boring machine |
| 05/10/2011 | CA2536695C Methods for designing fixed cutter bits and bits made using such methods |
| 05/05/2011 | WO2011050500A1 Multi-level refined throttle manifold and automatic control system |
| 05/05/2011 | US20110101985 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 05/05/2011 | US20110100711 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 05/04/2011 | CN201818295U Safety early warning system for petroleum well drilling |
| 05/04/2011 | CN101078338B Automatic intermittent mine mouth oil pumping method and device |
| 05/03/2011 | US7937223 Downhole fluid analysis |
| 04/28/2011 | WO2010141287A4 Wireless transmission system and system for monitoring a drilling rig operation |
| 04/27/2011 | CN102031957A Rotating guiding well drilling signal receiving device based on underground mud turbine motor |
| 04/27/2011 | CN102031929A PLC (Programmable Logic Controller) controlled variable-frequency piling machine |
| 04/26/2011 | US7931096 Adaptive user interface for rock drilling rig |
| 04/20/2011 | EP2310611A1 Method for determining dead zone of valve |
| 04/20/2011 | CN201802383U Pneumatic rotating actuator with adjustable angle |
| 04/20/2011 | CN201802382U Crown block anticollision device |
| 04/20/2011 | CN201802381U Automatically and continuously controlled drilling device |
| 04/20/2011 | CN201802380U Rotary drilling rig full electric control device |
| 04/20/2011 | CN201802305U Rotary drilling rig major hoist lifting full-automatic bottom protection and main hoist wire rope pre-tightening device |
| 04/20/2011 | CN102027185A Method for determining dead zone of valve |
| 04/20/2011 | CN102022106A Drill stem connector automatic screwing control device and method |
| 04/20/2011 | CN102022083A Rotary guide well drilling tool |
| 04/20/2011 | CN102022081A Method and device for drilling under condition of complicated stratum |
| 04/19/2011 | US7926589 Boring tool control using remote locator |
| 04/19/2011 | US7926588 Optimizing drilling performance using a selected drilling fluid |
| 04/19/2011 | CA2674054C Device and method for measuring a property in a downhole apparatus |
| 04/14/2011 | WO2011044028A2 Oilfield operation using a drill string |
| 04/14/2011 | WO2011043764A1 Integrated geomechanics determinations and wellbore pressure control |
| 04/14/2011 | WO2011043763A1 Well drilling method utilizing real time response to ahead of bit measurements |
| 04/14/2011 | CA2717595A1 Fluid logic tool for use in a subterranean well |
| 04/13/2011 | EP2307657A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 04/12/2011 | US7921938 Command and control for boring system |
| 04/12/2011 | US7921937 Drilling components and systems to dynamically control drilling dysfunctions and methods of drilling a well with same |
| 04/12/2011 | US7921936 Method and system for controlling an excavating apparatus |
| 04/12/2011 | CA2540175C Activity data capture system for a well service vehicle |
| 04/07/2011 | WO2011041562A2 Remotely controlled apparatus for downhole applications and methods of operation |
| 04/07/2011 | WO2009085502A3 Determining drillstring neutral point based on hydraulic factor |
| 04/07/2011 | US20110081208 Automatically adjustable caisson clamp |
| 04/07/2011 | CA2775744A1 Remotely controlled apparatus for downhole applications and methods of operation |
| 04/06/2011 | EP2304172A2 System and method for automating exploration of production of subterranean resources |
| 04/06/2011 | CN102007269A Method and apparatus for controlling downhole rotational rate of a drilling tool |
| 04/06/2011 | CN102003141A Monitoring walking drilling equipment |
| 04/05/2011 | CA2613815C Apparatus for eliminating net drill bit torque and controlling drill bit walk |
| 04/05/2011 | CA2610957C Method and apparatus for collecting drill bit performance data |
| 03/31/2011 | WO2011037927A2 System and method for monitoring and controlling wellbore parameters |
| 03/31/2011 | WO2011037925A2 Method for controlling fluid production from a wellbore by using a script |
| 03/31/2011 | US20110073367 Combining belief networks to generate expected outcome |
| 03/30/2011 | CN201778802U Hand-operated and automatic integrated throttling control device |
| 03/30/2011 | CN201778801U Combined multi-level pressure control device |
| 03/30/2011 | CN101994507A Intelligent flexible reinforced concrete drilling machine |
| 03/30/2011 | CN101994487A Torsion bearing assembly for transferring torque to drill |
| 03/30/2011 | CN101076654B Arrangement and method for controlling drilling parameters |
| 03/24/2011 | WO2011035280A2 Systems and methods for improving drilling efficiency |
| 03/24/2011 | WO2010111395A3 Hydraulic control system for drilling systems |
| 03/24/2011 | WO2009089188A3 Spring-operated anti-stall tool |
| 03/24/2011 | WO2009089187A3 Anti-stall tool for downhole drilling assemblies |
| 03/24/2011 | DE102009041627A1 Method for probing warfare agent into earth, at e.g. highways, involves measuring geophysical parameter of space around drill head and/or drilling rod during drilling operation, and transmitting measuring results to control unit |
| 03/24/2011 | CA2774551A1 Systems and methods for improving drilling efficiency |
| 03/23/2011 | CN201771486U Ground command sending device of downhole tool |
| 03/23/2011 | CN201771447U Special single-arm upright column type thruster of pipe for hydraulic cutting |
| 03/16/2011 | CN201763311U Bit feeding system of drilling machine |
| 03/16/2011 | CN201763272U Multi-drilling rod storing and accessing system |
| 03/16/2011 | CN201763238U Mine driller |
| 03/15/2011 | CA2463112C In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 03/15/2011 | CA2462805C Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 03/09/2011 | EP2293161A2 Electronic control system for drilling devices |
| 03/09/2011 | CN201756956U Hydraulic control device of an injection head clamping device |
| 03/08/2011 | US7900712 Hydraulic system for mining equipment and method of adjusting power of rock drill machine |
| 03/03/2011 | WO2011023028A1 High and low dual-speed pressurizing system for rotary drilling rig |
| 03/01/2011 | US7899658 Method for evaluating and improving drilling operations |
| 03/01/2011 | CA2462957C In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment |
| 02/24/2011 | WO2010141287A3 Wireless transmission system and system for monitoring a drilling rig operation |
| 02/24/2011 | DE102008062754B4 Verfahren und System zur Übertragung von Daten von einem Gerät zu einer Empfangseinheit A method and system for transmitting data from a device to a receiving unit |
| 02/22/2011 | CA2463103C Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 02/16/2011 | CN201747349U Digital controlling apparatus for water injection rate |
| 02/16/2011 | CN201747348U Novel electronic weight indicator |
| 02/16/2011 | CN201747347U Safe automatic trigger circuit for rock drilling machine |
| 02/16/2011 | CN101978130A Devices and methods for horizontal directional drilling with a boring tool library |
| 02/16/2011 | CN101976210A Well site data remote transmission method based on message middleware |
| 02/16/2011 | CN101975057A Real-time control drilling and production system for deep and ultra-deep wells |
| 02/15/2011 | US7888939 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 02/10/2011 | WO2011017626A1 Methods to estimate downhole drilling vibration amplitude from surface measurement |
| 02/10/2011 | WO2011017280A1 Riser segment rfid tag mounting system and method |
| 02/10/2011 | WO2011017279A1 Manual rfid antenna tuning system and method |
| 02/10/2011 | WO2011017278A1 Arc rfid antenna |
| 02/10/2011 | WO2011016914A1 Horizontal drilling system |
| 02/10/2011 | US20110035200 Methods for designing fixed cutter bits and bits made using such methods |
| 02/10/2011 | US20110031015 System and method for managing and/or using data for tools in a wellbore |
| 02/10/2011 | CA2770230A1 Methods to estimate downhole drilling vibration amplitude from surface measurement |
| 02/09/2011 | EP2281996A2 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 02/09/2011 | EP2281104A1 Distributed databases for a well control drilling system |
| 02/09/2011 | CN1749528B Automatic control system of hydraulic follow-up screw pile |
| 02/08/2011 | US7884736 Common interface architecture for horizontal directional drilling machines and walk-over guidance systems |
| 02/02/2011 | CN201730607U Mine drilling fire-proof safety protective device |
| 02/02/2011 | CN201730606U Cap-drive remote control high-pressure ball valve |
| 02/02/2011 | CN201730605U 节流管汇 Choke manifold |
| 02/02/2011 | CN201729619U Servicing rig hydraulic winch remote control device when in non-well killing operation |
| 01/27/2011 | WO2009062037A3 A method of training neural network models and using same for drilling wellbores |
| 01/26/2011 | CN201723211U Energy-saving oil extraction controller |