| 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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| 07/09/2013 | US8479812 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 07/09/2013 | CA2663533C Method of directional drilling with steerable drilling motor |
| 07/09/2013 | CA2624106C Methods and systems for designing and/or selecting drilling equipment with desired drill bit steerability |
| 07/04/2013 | WO2013101984A2 Systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring |
| 07/04/2013 | WO2013101581A1 Inter-tool communication flow control in toolbus system of cable telemetry |
| 07/04/2013 | WO2013101569A1 Cable telemetry synchronization system and method |
| 07/03/2013 | EP2609288A1 Method and system for controlling a power source at a rock drilling apparatus and rock drilling apparatus |
| 07/03/2013 | EP2609281A1 Method and system for controlling a compressor at a rock drilling apparatus and a rock drilling apparatus |
| 07/03/2013 | EP2609275A1 Remotely-controlled downhole device and method for using same |
| 07/03/2013 | CN203035179U Anti-overturning winch-type percussion drill with automatic power-off device |
| 07/03/2013 | CN102199991B Drilling-fixing integrated device and method for yolk coal terrane |
| 07/02/2013 | US8474550 Adaptive drilling control system |
| 07/02/2013 | CA2627279C Improved plug |
| 06/28/2013 | CA2799332A1 Apparatuses and methods for determining wellbore influx condition using qualitative indications |
| 06/27/2013 | WO2013096375A2 Well work opportunity system |
| 06/27/2013 | WO2013095395A1 Systems and methods to facilitate a request for oilfield services using a data transfer protocol |
| 06/27/2013 | WO2013093263A1 Method for monitoring an underwater site |
| 06/27/2013 | US20130161098 Optimized pressure drilling with continuous tubing drill string |
| 06/27/2013 | US20130161097 System and method for surface steerable drilling |
| 06/27/2013 | US20130161096 System and method for determining incremental progression between survey points while drilling |
| 06/27/2013 | US20130161095 Method and system for controlling a power source at a rock drilling apparatus and rock drilling apparatus |
| 06/27/2013 | CA2857633A1 Systems and methods to facilitate a request for oilfield services using a data transfer protocol |
| 06/27/2013 | CA2856449A1 Well work opportunity system |
| 06/26/2013 | EP2606200A1 Apparatus and method for mining coal |
| 06/26/2013 | CN203022764U Hydraulic control system of development machine integrating dust extraction and outburst prevention |
| 06/26/2013 | CN203022763U Hydraulic control system of drill loader |
| 06/26/2013 | CN103174423A Device and method for monitoring and identifying coal rock for coal cutter in real time |
| 06/25/2013 | US8469119 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/25/2013 | CA2680942C Downhole drilling vibration analysis |
| 06/25/2013 | CA2678832C Improvements in or relating to top drives |
| 06/20/2013 | WO2013087825A1 Method of controlling a downhole operation |
| 06/20/2013 | WO2012066325A3 Method of and apparatus for drilling a subterranean borehole |
| 06/20/2013 | CA2857752A1 Method of controlling a downhole operation |
| 06/19/2013 | EP2604789A1 Method of controlling a downhole operation |
| 06/19/2013 | CN203013443U A fixing structure for a transformer unit and a transformer assembly |
| 06/19/2013 | CN203008886U Automatic feeding device of hydraulic drill rig |
| 06/19/2013 | CN203008885U Leveling device for all-casing full-circle slewing drilling machine |
| 06/18/2013 | US8464784 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/13/2013 | WO2013086370A1 Processes and systems for drilling a borehole |
| 06/13/2013 | US20130151207 Designing drilling pattern for excavating rock cavern |
| 06/13/2013 | US20130146359 Method and system for monitoring a well for unwanted formation fluid influx |
| 06/13/2013 | US20130146358 Processes and systems for drilling a borehole |
| 06/12/2013 | CN202991005U Automatic reset device for rock drill |
| 06/12/2013 | CN202990843U Independence movable type drilling machine used for tunnel blasting construction |
| 06/12/2013 | CN202989909U Piling machine landing leg capable of displaying bearing pressure |
| 06/12/2013 | CN103154433A Sensor-based control of vibrations in slender continua, specifically torsional vibrations in deep-hole drill strings |
| 06/12/2013 | CN103154418A Remotely-controlled downhole device and method for using same |
| 06/12/2013 | CN102128022B Drilling engineering early warning method and system thereof |
| 06/12/2013 | CN101479441B Intervention tool for use inside wellbore and method for implementing intervention operation |
| 06/06/2013 | WO2013003151A4 Control of downhole safety devices |
| 06/06/2013 | US20130140092 Cab module for a mining machine |
| 06/06/2013 | CA2857650A1 Automated drilling system |
| 06/05/2013 | CN202970680U Multifunctional top drive safety monitoring device |
| 06/05/2013 | CN202970679U Load feedback control system for hydraulic drilling rig |
| 06/05/2013 | CN202970678U Automatic turnback control system of drilling bit |
| 06/05/2013 | CN202970677U Long spiral drilling machine |
| 06/05/2013 | CN202970676U Confluence control device |
| 06/05/2013 | CN202970675U Hydraulic control system for rotary expansion device of rotary drilling rig |
| 06/05/2013 | CN103138654A Electric control method of well drilling motor |
| 06/05/2013 | CN103132985A Automatic bit feed control method applied to oil rig |
| 06/05/2013 | CN103132984A Automatic bit feeding control system of petroleum drilling machine and automatic bit feeding control method thereof |
| 06/05/2013 | CN103132983A Automatic bit feeding control system of petroleum drilling machine |
| 06/05/2013 | CN103132982A Well shutdown system by one key |
| 06/05/2013 | CN103132981A Comprehensive measurement and control system applied to drilling machine hoisting device |
| 06/05/2013 | CN103132980A Comprehensive measurement and control method applied to drilling machine hoisting device |
| 06/05/2013 | CN103132979A Lifting control system of drill column of petroleum drilling machine and lifting control method thereof |
| 06/05/2013 | CN103132978A Lifting control system of drill column of petroleum drilling machine |
| 06/05/2013 | CN103132977A Ascending-descending control method applied to oil rig drill column |
| 06/05/2013 | CN103132976A Electric control system applied to well drilling motor |
| 06/05/2013 | CN103132975A Gas control system used for drilling machine and gas control method thereof |
| 06/05/2013 | CN103132974A Gas control system used for drilling machine |
| 06/05/2013 | CN103132973A Comprehensive measurement and control system applied to drilling machine hoisting device and measurement and control method thereof |
| 06/05/2013 | CN103132972A Pneumatic control method applied to drilling machine |
| 06/05/2013 | CN102261240B Device and method for accurately monitoring drilling depth of rotary drill |
| 06/05/2013 | CN101755103B Method and apparatus for establishing a manual governor control setting in an electro-hydraulic system |
| 05/30/2013 | WO2013078317A1 Interface for controlling and improving drilling operations |
| 05/30/2013 | WO2013076184A2 Method and system for controlling vibrations in a drilling system |
| 05/30/2013 | CA2856004A1 Method and system for controlling vibrations in a drilling system |
| 05/29/2013 | CN202954806U Expanded-base drill detection and control device |
| 05/29/2013 | CN202954805U Mast control device of small-sized rotary drilling rig |
| 05/29/2013 | CN202954804U Petroleum drilling machine wireless remote monitoring system |
| 05/29/2013 | CN103124830A Method and device for monitoring down-the-hole percussion drilling |
| 05/29/2013 | CN101936159B Method for recognizing lithological characters while drilling |
| 05/23/2013 | WO2013074765A2 Methods for geosteering a drill bit in real time using surface acoustic signals |
| 05/23/2013 | WO2013074745A2 Methods for geosteering a drill bit in real time using drilling acoustic signals |
| 05/23/2013 | WO2013074095A1 Systems and methods of harvesting information from a well-site |
| 05/23/2013 | WO2013074093A1 Modeling passage of a tool through a well |
| 05/23/2013 | WO2013074092A1 Modeling operation of a tool in a wellbore |
| 05/23/2013 | WO2013049487A3 Apparatus and method for galvanically removing from or depositing onto a device a metallic material downhole |
| 05/23/2013 | CA2855276A1 Systems and methods of harvesting information from a well-site |
| 05/23/2013 | CA2854666A1 Methods for geosteering a drill bit in real time using drilling acoustic signals |
| 05/23/2013 | CA2854480A1 Methods for geosteering a drill bit in real time using surface acoustic signals |
| 05/22/2013 | CN202946134U Guttation enclosed automatic control device of injection well |
| 05/22/2013 | CN103114808A Arch centering pipe shed drilling machine |
| 05/22/2013 | CN103114805A Drilling and reaming dual-purpose drilling tool and construction method thereof |
| 05/22/2013 | CN102191923B Long-distance control wellhead operation device for workover operation |
| 05/22/2013 | CN101657606B Method and device for controlling at least one drilling parameter for rock drilling |
| 05/21/2013 | US8447522 Method for estimating the probability of collision between wells |
| 05/21/2013 | US8443883 Apparatus and method for detecting poor hole cleaning and stuck pipe |
| 05/16/2013 | WO2013038336A3 Multi-scheme downhole tool bus system and methods |