| 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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| 03/27/2013 | CN102996109A Creation method for simulation model of anti-jamming hydraulic control system of rocker driller |
| 03/27/2013 | CN102146779B Underground locating and angle-fixing drilling and windowing tool for horizontal well |
| 03/27/2013 | CN101802346B Method and software product for designing drilling pattern for rock cavity excavation |
| 03/27/2013 | CN101663463B Method of modifying drilling pattern, rock drilling rig, and software product |
| 03/27/2013 | CN101059074B Underground drill for controlling underground drilling and the method |
| 03/21/2013 | WO2013038336A2 Multi-scheme downhole tool bus system and methods |
| 03/21/2013 | WO2013037110A1 Protecting method and controller for rotary drilling rig, protecting system and rotary drilling rig |
| 03/21/2013 | WO2013016282A3 Path tracking for directional drilling as applied to attitude hold and trajectory following |
| 03/21/2013 | CA2847094A1 Multi-scheme downhole tool bus system and methods |
| 03/20/2013 | CN202810823U Drilling rig remote monitoring control system based on video surveillance technology |
| 03/20/2013 | CN202810822U Horizontal directional drilling machine remotely and wirelessly controlled to travel |
| 03/20/2013 | CN202810656U Double rotational-speed device controlling bit pressure distribution relation of reaming while drilling |
| 03/20/2013 | CN202810652U Horizontal drill orientation system for deep hole drilling carriage |
| 03/20/2013 | CN102985636A Method and apparatus for detecting tightness of threaded joints of drill rods |
| 03/20/2013 | CN102979501A A method of automatically picking up a drill bit off the bottom of an opening in a subsurface formation |
| 03/20/2013 | CN102979500A A method of controlling a direction of drilling of the drill string used to form an opening in a subsurface formation |
| 03/20/2013 | CN102979499A System and method for operation control of vehicle-mounted drill machine |
| 03/20/2013 | CN102979459A High-density particle-containing fluid control device |
| 03/20/2013 | CN102251744B Annular patio drilling machine |
| 03/19/2013 | US8397562 Apparatus for measuring bending on a drill bit operating in a well |
| 03/15/2013 | CA2788934A1 Well pad placement |
| 03/14/2013 | WO2012109663A3 System and apparatus for modeling the behavior of a drilling assembly |
| 03/13/2013 | EP2567068A1 Method and apparatus to adjust weight-on-bit/torque-on-bit sensor bias |
| 03/13/2013 | EP2567059A1 Method and apparatus for opening threaded joints of drilling equipment |
| 03/13/2013 | EP2567058A1 Method and apparatus for detecting tightness of threaded joints of drill rods |
| 03/13/2013 | CN202788794U Blowout preventer and drilling machine linkage safety device |
| 03/13/2013 | CN202788607U Rock drilling key action double-pump hydraulic control loop for cutting drill |
| 03/13/2013 | CN202788606U Fast advancing hydraulic control loop for down-the-hole drill |
| 03/13/2013 | CN102966342A Automatic upward and downward creepage control device for casing of full-circle slewing drilling machine |
| 03/12/2013 | CA2714899C Anti-stall tool for downhole drilling assemblies |
| 03/08/2013 | DE202013001608U1 Vorrichtung zum Erstellen einer Bohrung im Boden Means for creating a hole in the ground |
| 03/07/2013 | WO2013033547A1 Sample capture prioritization |
| 03/07/2013 | WO2013032863A1 Modeling and simulation of complete drill strings |
| 03/07/2013 | WO2013032861A1 System and method for stick-slip correction |
| 03/07/2013 | WO2013032652A1 Minimum strain energy waypoint-following controller for directional drilling using optimized geometric hermite curves |
| 03/07/2013 | US20130056283 System and Method for Vibration in a Drill String |
| 03/07/2013 | US20130056275 Pull-down method and equipment for installing well casing |
| 03/06/2013 | CN102955445A Telex control system for petroleum drilling equipment |
| 03/06/2013 | CN102953722A Anti-collision obstacle bypassing method and system during drilling operation |
| 03/06/2013 | CN102953721A Anti-jamming method for hydraulic rotation circuit relay of rock chiseling machine |
| 03/06/2013 | CN102953720A Electronic control room of oil-to-electricity driving system for petroleum drilling equipment |
| 03/06/2013 | CN101688432B Method and apparatus for drilling hole into bedrock |
| 03/05/2013 | US8392014 Designing drilling pattern for excavating rock cavern |
| 03/05/2013 | US8387720 Drilling rig with a control system for rotationally rocking a drill string with a top drive |
| 02/28/2013 | US20130048378 Method and apparatus for opening threaded joints of drilling equipment |
| 02/27/2013 | EP2561181A1 Air compressor system and method of operation |
| 02/27/2013 | CN102947537A System and method for subsea production system control |
| 02/27/2013 | CN102943660A Method for estimating efficiency of bore-cleaning operation of drilling |
| 02/27/2013 | CN102943623A Methods and systems for drilling |
| 02/27/2013 | CN102943620A Pressure-controlled drilling method based on drilling annulus wellbore multi-phase flow computing |
| 02/27/2013 | CN101675214B Method and device for controlling at least one drilling parameter for rock drilling |
| 02/26/2013 | US8381838 System and apparatus for directing the drilling of a well |
| 02/26/2013 | US8381836 Advanced underground homing system, apparatus and method |
| 02/20/2013 | EP2559846A2 Methods and systems for drilling |
| 02/20/2013 | CN202745853U Rotary drilling rig and drill rod over-pressurizing protecting system thereof |
| 02/20/2013 | CN102937018A Method and device for pressurization control of full-friction type drill rod and rotary drilling rig |
| 02/20/2013 | CN101832130B Surface real-time processing of downhole data |
| 02/19/2013 | US8378842 Downhole component with an electrical device in a blind-hole |
| 02/14/2013 | US20130037324 Device and method for handling drill string components and drill rig |
| 02/13/2013 | CN102926738A Method for controlling anti-blocking of hydraulic drilling on line |
| 02/13/2013 | CN102926737A Rotation control method, device and system for rotary drilling dig power head, and rotary drilling dig |
| 02/13/2013 | CN102926662A Resonance enhanced drilling method and apparatus |
| 02/13/2013 | CN102926655A Control method and control device of rotary drilling rig, and rotary drilling rig |
| 02/13/2013 | CN102022083B Rotary guide well drilling tool |
| 02/13/2013 | CN102003141B 监控式步履钻探设备 Monitor type walking drilling equipment |
| 02/13/2013 | CN101663464B Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 02/12/2013 | US8371399 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 02/07/2013 | US20130032402 Adaptive drilling control system |
| 02/07/2013 | US20130032401 Methods and systems for drilling |
| 02/06/2013 | EP2553435A1 A system for classification of materials using laser induced breakdown spectroscopy |
| 02/06/2013 | CN202718623U Key drilling action single-pump hydraulic control loop of cutting drilling machine |
| 02/06/2013 | CN102913227A Drilling control system |
| 02/06/2013 | CN102913226A Workover treatment vehicle |
| 02/06/2013 | CN102913131A Dynamic point-the-bit rotary steering drilling tool |
| 02/06/2013 | CN102913122A Rotary drilling rig under all-electric pilot control |
| 02/06/2013 | CN102913121A Flexible swing pipe vibrator boring machine |
| 02/06/2013 | CN101976210B Well site data remote transmission system based on message middleware |
| 02/06/2013 | CN101427002B Method of controlling operation of rock drilling rig, and rock drilling rig |
| 02/05/2013 | US8365840 Method and device for controlling at least one drilling parameter for rock drilling |
| 01/31/2013 | WO2013016282A2 Path tracking for directional drilling as applied to attitude hold and trajectory following |
| 01/31/2013 | WO2013015958A2 Method and system of displaying data associated with drilling a borehole |
| 01/31/2013 | WO2012170122A3 Modular control system for downhole tool |
| 01/31/2013 | WO2012087892A3 Method for controlling the downhole temperature during fluid injection into oilfield wells |
| 01/31/2013 | US20130025937 Systems and Methods for Continuous and Near Continuous Drilling |
| 01/31/2013 | US20130025868 Downhole Actuating Apparatus |
| 01/31/2013 | CA2842161A1 Method and system of displaying data associated with drilling a borehole |
| 01/30/2013 | CN202707031U Automatic control system of drilling rig |
| 01/30/2013 | CN202707030U Automation device of percussion drill |
| 01/30/2013 | CN202706905U Double drill deeply-planted afforestation drilling machine |
| 01/30/2013 | CN102900421A Control method and device of drill rod lowering speed of drilling machine and drilling machine |
| 01/30/2013 | CN102900420A Bus control system for drill carriage |
| 01/30/2013 | CN102900419A Hydraulic control system for rotary expansion device of rotary drilling rig |
| 01/30/2013 | CN102900366A Free trajectory planning and deviation correcting method of horizontal directional drill |
| 01/30/2013 | CN102900365A Embedded type system-based control device for horizontal directional drill |
| 01/30/2013 | CN101253308B User interface for rock drilling rig |
| 01/28/2013 | CA2783967A1 Neutron porosity measurement devices with semiconductor neutron detection cells and methods |
| 01/24/2013 | WO2012064626A3 Apparatus and method for automated drilling of a borehole in a subsurface formation |
| 01/23/2013 | EP2549055A2 Method and apparatus for reducing stick-slip |
| 01/23/2013 | CN202689928U Drilling tool capable of controlling angle of horizontal hole |
| 01/23/2013 | CN102889072A Rod clamping detection method for rotary drilling rig based on self tuning of parameter curve |