| 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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| 01/25/2011 | CA2484703C Apparatus for downhole measurements, and methods of using same |
| 01/22/2011 | CA2703417A1 Instrumentation of appraisal well for telemetry |
| 01/19/2011 | CN101952545A Method and system for fracturing subsurface formations during the drilling thereof |
| 01/19/2011 | CN101952539A Systems and methods for improved positioning of pads |
| 01/13/2011 | WO2010120507A3 System and method for communicating about a wellsite |
| 01/12/2011 | EP2273061A2 Method and apparatus for gripping tubulars |
| 01/12/2011 | CN201705323U Mechanical drilling machine load peak regulating device |
| 01/12/2011 | CN201705322U Downhole working condition simulating device for pressure control drilling experiments and tests |
| 01/12/2011 | CN101392529B Bored pile control method, control system and drill using the control system |
| 01/06/2011 | WO2007019472A8 Methods and systems for design and/or selection of drilling equipment based on wellbore drilling simulations |
| 01/05/2011 | EP1991757B1 System for injecting a substance into the space surrounding a well tubular |
| 01/05/2011 | CN201696021U Well control system capable of intelligently and collectively monitoring |
| 01/05/2011 | CN101936159A Method for recognizing lithological characters while drilling |
| 01/05/2011 | CN101936132A Reciprocating drill for mine |
| 01/04/2011 | US7861800 Combining belief networks to generate expected outcomes |
| 01/04/2011 | CA2568119C Rotary steerable tool including drill string rotation measurement apparatus |
| 12/29/2010 | WO2010151203A1 Control system, rock drill rig and control method |
| 12/29/2010 | WO2010149839A1 Method and apparatus for controlling rock drilling |
| 12/29/2010 | WO2010149827A1 Method for controlling rock drilling |
| 12/29/2010 | CN101929331A Overall process under-balance drilling pressure compensation system and method |
| 12/29/2010 | CN101929310A Active alternating magnetic field information-based method for guiding and positioning well drilling track |
| 12/29/2010 | CA2766303A1 Method and apparatus for controlling rock drilling |
| 12/23/2010 | WO2010145015A1 Multifunction sub for use with casing running string |
| 12/23/2010 | WO2010145005A1 Air hammer optimization using acoustic telemetry |
| 12/22/2010 | EP2264275A2 Methods and systems for design and/or selecting of drilling equipment based on wellbore drilling simulations |
| 12/22/2010 | CN201678392U Dual automatic digital electronic anti-collision crane |
| 12/22/2010 | CN101922288A Intelligent monitoring sucker rod and monitoring system thereof |
| 12/15/2010 | CN101915061A Alternating magnetic field guiding device |
| 12/15/2010 | CN101535004B Rock drilling method and rock drilling machine |
| 12/14/2010 | US7849934 Method and apparatus for collecting drill bit performance data |
| 12/14/2010 | CA2463104C In situ production of a blending agent from a hydrocarbon containing formation |
| 12/09/2010 | WO2010141287A2 Wireless transmission system and system for monitoring a drilling rig operation |
| 12/09/2010 | US20100307824 Automatic Control System For Connecting A Dual-Member Pipe |
| 12/09/2010 | CA2761955A1 Wireless transmission system and system for monitoring a drilling rig operation |
| 12/08/2010 | EP2258924A2 Device for monitoring a drilling or coring operation and installation comprising such a device |
| 12/08/2010 | EP2258923A2 Device for monitoring a drilling or coring operation and installation comprising such a device |
| 12/08/2010 | EP2258922A2 Device for monitoring a drilling or coring operation and installation comprising such a device |
| 12/08/2010 | CN1890451B System and method for damping vibration in a drill string |
| 12/08/2010 | CN101906956A Rotary drilling rig pulling control method and system |
| 12/07/2010 | CA2594925C Pump control for formation testing |
| 12/02/2010 | WO2010106014A3 A method and system for monitoring a drilling operation |
| 12/02/2010 | US20100300753 Multiple input scaling autodriller |
| 12/01/2010 | CN201661272U Automatic blowout well killing control device |
| 12/01/2010 | CN101899969A Real-time on-site drilling full parameter optimization method |
| 11/30/2010 | US7844426 Methods for designing fixed cutter bits and bits made using such methods |
| 11/30/2010 | CA2463110C In situ recovery from a hydrocarbon containing formation using barriers |
| 11/30/2010 | CA2462794C Method and system for in situ heating a hydrocarbon containing formation by a u-shaped opening |
| 11/24/2010 | CN201650262U Rotating control system for drill rig rotary table |
| 11/24/2010 | CN201650261U Intermittent pumping and energy saving control device and intermittent pumping and energy saving control circuit of oil pumping machine |
| 11/24/2010 | CN201650260U Automatic rotation positioning device of rotary drilling rig |
| 11/24/2010 | CN201650259U Harmonic gear transmission device used for petroleum drilling track control |
| 11/24/2010 | CN201650258U Intelligent deep-hole drill carriage control device |
| 11/24/2010 | CN201650158U Automatic drilling system of direct-current main motor |
| 11/24/2010 | CN201650133U Oil derrick translation synchronous control device |
| 11/24/2010 | CN101896686A Rock drilling rig and method for drilling |
| 11/24/2010 | CN101892829A Pressure control method and system for rotary drilling rig |
| 11/23/2010 | US7836950 Methods and apparatus to convey electrical pumping systems into wellbores to complete oil and gas wells |
| 11/20/2010 | CA2704718A1 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 11/18/2010 | US20100289495 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 11/18/2010 | US20100288519 Method and device for rock drilling |
| 11/17/2010 | CN201635716U Continuous pipe injection speed proportional control device |
| 11/17/2010 | CN201635715U Electric control device of core drilling machine |
| 11/17/2010 | CN201635657U Downhole drilling tool for intelligent downhole multi-branch horizontal drilling completion system |
| 11/17/2010 | CN201635645U Rotating locating device of rotary drilling rig |
| 11/17/2010 | CN201634360U Crown pulley anti-collision and blocking preventing control device |
| 11/16/2010 | US7832500 Wellbore drilling method |
| 11/16/2010 | CA2509585C Control method for downhole steering tool |
| 11/12/2010 | CA2694551A1 Quality measure for a data context service |
| 11/11/2010 | WO2010096346A3 Drilling scorecard |
| 11/11/2010 | US20100282509 Variable frequency control for down hole drill |
| 11/11/2010 | US20100282508 Identifying a trajectory for drilling a well cross reference to related application |
| 11/10/2010 | CN101883910A Devices and methods for power control in horizontal directional drilling |
| 11/09/2010 | US7828083 Method of controlling operation of rock drilling rig, and rock drilling rig |
| 11/09/2010 | US7828080 Distributed intelligence for enhanced monitoring and control of oilfield processes |
| 11/04/2010 | WO2010124629A1 Oil field control system |
| 11/04/2010 | WO2010124611A1 Control system for oil pumping system |
| 11/04/2010 | WO2009102804A3 Systems and methods for positioning of pads and orienting slot templates |
| 11/03/2010 | EP2245257A2 Systems and methods for improved positioning of pads |
| 11/03/2010 | CN201620868U Device using FF field buses to achieve control pressure drilling |
| 11/03/2010 | CN201620867U Vehicle-mounted electric workover rig electrical control device |
| 11/03/2010 | CN201620866U Turning-over protection device of rotary drilling machine |
| 11/03/2010 | CN1950586B Method and system for controlling drilling parameter during initial period for drilling rock |
| 11/03/2010 | CN101876823A Oil field control system |
| 11/03/2010 | CN101876243A Control system of pumping system |
| 11/03/2010 | CN101876239A Pumping unit system and power saving control method thereof |
| 11/02/2010 | US7824132 Automatically adjustable caisson clamp |
| 11/02/2010 | US7823658 Analyzing resistivity images for determining downhole events and removing image artifacts |
| 11/02/2010 | US7823655 Directional drilling control |
| 11/02/2010 | CA2460070C Method for automatic generation of a drill pattern |
| 10/27/2010 | CN201614928U 一种气液盘式刹车控制系统 A gas-liquid disc brake control system |
| 10/27/2010 | CN101871342A Electronic display structure of weight indicator |
| 10/27/2010 | CN101871320A Automatic hydraulic offset-correcting method for horizontal drilling and specific drilling tool |
| 10/21/2010 | WO2010120510A1 System and method for communicating about a wellsite |
| 10/21/2010 | WO2010120507A2 System and method for communicating about a wellsite |
| 10/21/2010 | WO2010120463A1 Slickline conveyed shifting tool system |
| 10/21/2010 | WO2010120455A1 Slickline conveyed tubular cutter system |
| 10/21/2010 | WO2010120454A1 Slickline conveyed debris management system |
| 10/21/2010 | CA2758583A1 Slickline conveyed shifting tool system |
| 10/21/2010 | CA2758495A1 Slickline conveyed debris management system |
| 10/21/2010 | CA2758443A1 Slickline conveyed tubular cutter system |