| 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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| 08/09/2007 | DE102007003080A1 Underground boring tool control for horizontal directional drilling machine, involves setting rate of rotation and axial thrust of boring tool, and interrupting set rate of rotation and axial thrust of boring tool |
| 08/07/2007 | US7253628 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 08/07/2007 | US7252152 Methods and apparatus for actuating a downhole tool |
| 08/06/2007 | CA2771036A1 Method of real-time drilling simulation |
| 08/02/2007 | WO2007087388A2 Control system |
| 08/02/2007 | US20070175662 Horizontal drilling system with oscillation control |
| 08/01/2007 | CN2929181Y Hydraulic piston type weight indicator |
| 07/26/2007 | WO2007082997A1 Measuring device, rock breaking device and method of measuring stress wave |
| 07/26/2007 | US20070169964 Control System |
| 07/25/2007 | CN2926492Y Monitor of pumping well against pump-out |
| 07/17/2007 | US7243719 Control method for downhole steering tool |
| 07/11/2007 | CN1995693A Supported auto-balancing self-service type pumping unit |
| 07/10/2007 | US7243028 Methods and apparatus for reducing electromagnetic signal noise |
| 06/28/2007 | WO2007033024A3 Method and system for evaluating weight data from service rig |
| 06/28/2007 | US20070144781 Instrumented drill head, related drilling/bolting machines, and methods |
| 06/26/2007 | CA2271795C Whipstock |
| 06/26/2007 | CA2247834C Computer controlled downhole safety valve system |
| 06/21/2007 | US20070137898 Automatic downlink system |
| 06/20/2007 | CN1984755A Method for controlling percussion device, software product, and percussion device |
| 06/20/2007 | CN1982648A Data collecting system at bottom of unbalancing borehole |
| 06/19/2007 | US7231989 Drilling control arrangement |
| 06/13/2007 | CN2911755Y Autocontrolled protecting system of coal mine emulsion pump station based on single processor |
| 06/13/2007 | CN1981109A Method and apparatus for performing chemical treatments of exposed geological formations |
| 06/13/2007 | CN1978865A Smart synergetic controller for oil pump |
| 06/12/2007 | US7228918 System and method for forming an underground bore |
| 06/12/2007 | US7228901 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 06/06/2007 | EP1792051A1 Arrangement for controlling percussive rock drilling |
| 06/06/2007 | EP1558835B1 Monitoring valve, rock drilling apparatus and a method for controlling at least two hydraulic actuators to such a monitoring valve and rock drilling apparatus |
| 06/06/2007 | CN1975104A Weight indicator safety alarming system |
| 06/05/2007 | US7225885 Boring tool control using remote locator |
| 05/30/2007 | EP1789651A1 Method and system for the design of an oil well |
| 05/30/2007 | EP1558836B1 Arrangement for controlling rock drilling |
| 05/30/2007 | CN2906709Y Field bus-based distributed automatic control and protection system for coal mine emulsion pump station |
| 05/30/2007 | CN2906559Y Double-parameter beam sensor |
| 05/29/2007 | US7222681 Programming method for controlling a downhole steering tool |
| 05/24/2007 | DE10149018B4 Verfahren zum Richtungsbohren A method for directional drilling |
| 05/22/2007 | US7219752 System and method for damping vibration in a drill string |
| 05/22/2007 | US7219747 Providing a local response to a local condition in an oil well |
| 05/22/2007 | US7219723 Integrated control system for beam pump systems |
| 05/22/2007 | CA2522162C Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance |
| 05/15/2007 | US7218244 Common interface architecture for horizontal directional drilling machines and walk-over guidance systems |
| 05/03/2007 | WO2006126932A8 Control device |
| 05/03/2007 | WO2006062460A8 Arrangement and method for controlling drilling parameters |
| 05/02/2007 | EP1780372A1 Drilling system |
| 05/02/2007 | EP1778443A1 Method for controlling percussion device, software product, and percussion device |
| 05/02/2007 | CN2895730Y Oil-well time-rate monitor |
| 05/02/2007 | CN1313700C Control device for kill job |
| 04/26/2007 | US20070089907 Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore |
| 04/26/2007 | US20070089906 Boring machine |
| 04/25/2007 | CN2893139Y Pumping unit crank pin breaking proof automatic shut-down device |
| 04/25/2007 | CN1312377C Apparatus and method for operating drill head from ground surface when drilling |
| 04/24/2007 | US7207216 Hydraulic and mechanical noise isolation for improved formation testing |
| 04/24/2007 | CA2246315C An apparatus and system for making at-bit measurements while drilling |
| 04/19/2007 | US20070084635 Boring Tool Tracking Fundamentally Based on Drill String Length, Pitch and Roll |
| 04/19/2007 | CA2823319A1 Method and apparatus for transmitting sensor response data and power through a mud motor |
| 04/18/2007 | CN1950586A Method and system for collaring |
| 04/18/2007 | CN1948708A Method of transmitting down order for well drilling and its system |
| 04/11/2007 | CN2888511Y Energy-saving overall parameter online measuring and controlling device |
| 04/10/2007 | US7201231 Apparatuses and methods for deploying logging tools and signalling in boreholes |
| 04/05/2007 | WO2005121506A8 Method and system for collaring |
| 04/04/2007 | EP1769135A1 Method and apparatus and program storage device adapted for automatic drill bit selection based on earth properties |
| 04/04/2007 | CN2886061Y Intelligent automatic-control filling blowout-prevention and thermal-insulating device |
| 04/03/2007 | US7198117 Method and arrangement for controlling percussion rock drilling |
| 04/03/2007 | US7198102 Automatic downlink system |
| 03/28/2007 | EP1767741A2 Real-time control system and method for controlling an underground boring machine |
| 03/28/2007 | EP1766186A1 Method and system for collaring |
| 03/28/2007 | EP1436486B1 Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 03/27/2007 | US7195083 Three dimensional steering system and method for steering bit to drill borehole |
| 03/27/2007 | US7195062 Measurement-while-drilling assembly using real-time toolface oriented measurements |
| 03/22/2007 | US20070067147 Simulating the Dynamic Response of a Drilling Tool Assembly and Its Application to Drilling Tool Assembly Design Optimization and Drilling Performance Optimization |
| 03/22/2007 | CA2839478A1 Method and system for evaluating weight data from a service rig |
| 03/22/2007 | CA2621546A1 Method and system for evaluating weight data from service rig |
| 03/21/2007 | CN2881093Y PLC control system of drilling machine |
| 03/21/2007 | CN2881092Y Automatic monitoring device pumping parameter of beam-pumping unit |
| 03/21/2007 | CN1306146C Method for controlling rock drilling and control system for rock drilling equipment |
| 03/15/2007 | WO2006135303A8 Method and system for controlling power consumption during rock drilling and rock drilling apparatus incorporating such a system |
| 03/15/2007 | WO2006126933A8 Method and device |
| 03/15/2007 | US20070056772 Autoreaming systems and methods |
| 03/14/2007 | CN2878667Y 回转控制系统 Swing control system |
| 03/08/2007 | WO2007026052A1 Adaptive user interface for rock drilling rig |
| 03/08/2007 | WO2007026051A1 User interface for rock drilling rig |
| 03/08/2007 | WO2006105404B1 Command and control for boring system |
| 03/08/2007 | CA2619066A1 Adaptive user interface for rock drilling rig |
| 03/06/2007 | US7185719 Dynamic annular pressure control apparatus and method |
| 03/06/2007 | US7185716 Electrically sequenced tractor |
| 03/06/2007 | US7185714 Traction control for downhole tractor |
| 02/28/2007 | CN2874018Y Well head back pressure controller for petroleum production |
| 02/28/2007 | CN1301826C Method and apparatus for monitoring operation of percussion device |
| 02/27/2007 | US7182154 Directional borehole drilling system and method |
| 02/27/2007 | US7182133 Elevator sensor |
| 02/22/2007 | WO2006133243B1 Method and apparatus for collecting drill bit performance data |
| 02/22/2007 | WO2005113935A3 Methods and apparatus for using formation property data |
| 02/21/2007 | EP1490582B1 Method of localizing a hole drilled with a rock drilling machine |
| 02/21/2007 | CN2871839Y Intelligent jetting system on ground oil field |
| 02/21/2007 | CN2871838Y Dual-locomotive heat backup device of electronic drilling system |
| 02/15/2007 | WO2007019483A1 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 02/15/2007 | WO2007019472A1 Methods and systems for design and/or selection of drilling equipment based on wellbore drilling simulations |
| 02/15/2007 | WO2007019471A1 Methods and systems for designing and/or selecting drilling equipment with desired drill bit steerability |
| 02/15/2007 | WO2007017046A1 Drilling system |
| 02/15/2007 | US20070038377 Method and system for pre-drill pore pressure prediction |