| 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) |
|---|
| 01/01/2009 | US20090006058 Iterative Drilling Simulation Process For Enhanced Economic Decision Making |
| 12/31/2008 | WO2009002306A1 Method and device for controlling a rock drill rig |
| 12/31/2008 | EP2007969A1 Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics |
| 12/31/2008 | CN101333923A Method of automatically controlling the trajectory of a drilled well |
| 12/31/2008 | CN101333909A Dash-proof distant control boring machine and its control method |
| 12/31/2008 | CA2692027A1 Method and device for controlling a rock drill rig |
| 12/30/2008 | CA2493091C Automated rig control management system |
| 12/25/2008 | US20080315471 System And Method For Damping Vibration In A Drill String |
| 12/24/2008 | WO2008036522B1 Method of directional drilling with steerable drilling motor |
| 12/24/2008 | CN101328784A Drilling lead synchronous tracking screw thread pile machine with automatic control system |
| 12/24/2008 | CA2691709A1 System and method for gas operations using multi-domain simulator |
| 12/18/2008 | WO2008134266B1 Subsea well control system and method |
| 12/16/2008 | CA2500382C Measurement-while-drilling assembly using real-time toolface oriented measurements |
| 12/11/2008 | WO2008151293A2 System and method for performing oilfield production operations |
| 12/11/2008 | WO2008127125A3 System and method for testing drilling control systems |
| 12/09/2008 | US7464013 Dynamically balanced cutting tool system |
| 12/09/2008 | US7461707 Electric horizontal directional drilling machine system |
| 12/09/2008 | US7461705 Directional drilling control |
| 12/09/2008 | US7461691 In situ recovery from a hydrocarbon containing formation |
| 12/04/2008 | WO2008129128A8 Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 12/04/2008 | WO2008085946B1 Drilling components and systems to dynamically control drilling dysfunctions and methods of drilling a well with same |
| 12/04/2008 | US20080296025 Control system |
| 12/02/2008 | CA2537585C Smart-control plc based touch screen driven remote control panel for bop control unit |
| 11/27/2008 | WO2008144710A1 System and method for performing a drilling operation in an oilfield |
| 11/27/2008 | US20080289875 Method and System for the Design of an Oil Well |
| 11/27/2008 | CA2685290A1 System and method for performing a drilling operation in an oilfield |
| 11/20/2008 | WO2008139413A1 Loading of explosives |
| 11/20/2008 | CA2684654A1 Loading of explosives |
| 11/19/2008 | EP1991757A2 System for injecting a substance into the space surrounding a well tubular |
| 11/19/2008 | CN201152251Y Beam-pumping unit protection machine control device |
| 11/13/2008 | WO2008137078A1 Constant-mode auto-drill with pressure derivative control |
| 11/13/2008 | WO2008137042A1 Method and apparatus for establishing a manual governor control setting in an electro-hydraulic system |
| 11/13/2008 | WO2008136883A1 Flow hydraulic amplification for a pulsing, fracturing, and drilling (pfd) device |
| 11/13/2008 | CA2686737A1 Flow hydraulic amplification for a pulsing, fracturing, and drilling (pfd) device |
| 11/12/2008 | CN100432367C Automatic perpendicular drilling tool |
| 11/06/2008 | WO2008134266A1 Subsea well control system and method |
| 11/06/2008 | WO2008134055A1 Modular well servicing unit |
| 11/06/2008 | US20080271923 Flow hydraulic amplification for a pulsing, fracturing, and drilling (PFD) device |
| 11/06/2008 | DE102007021070A1 Verfahren zum Betrieb einer Werkzeugmaschine sowie Werkzeugmaschine Method for operating a machine tool and machine tool |
| 11/04/2008 | US7445048 Plunger lift apparatus that includes one or more sensors |
| 11/04/2008 | CA2492422C A system for evaluating over and underbalanced drilling operations |
| 11/04/2008 | CA2344754C Coiled tubing wellbore cleanout |
| 10/30/2008 | WO2008131285A1 Neural net for use in drilling simulation |
| 10/30/2008 | WO2008131284A1 System and method for oilfield production operations |
| 10/30/2008 | WO2008131269A1 Method and system for measuring technology maturity |
| 10/30/2008 | WO2008129128A1 Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 10/30/2008 | WO2008091775A3 Method, device and system for drilling rig modification |
| 10/30/2008 | WO2008036522A3 Method of directional drilling with steerable drilling motor |
| 10/30/2008 | US20080264689 Anti-surge/reverse thruster |
| 10/30/2008 | CA2684405A1 Neural net for use in drilling simulation |
| 10/30/2008 | CA2680526A1 System and method for oilfield production operations |
| 10/23/2008 | WO2008127948A1 Modeling the transient behavior of bha/drill string while drilling |
| 10/23/2008 | WO2008127173A1 Method and device for controlling at least one drilling parameter for rock drilling. |
| 10/23/2008 | WO2008127172A1 Method and device for controlling at least one drilling parameter for rock drilling |
| 10/23/2008 | WO2008127171A1 Method and device for controlling at least one drilling parameter for rock drilling |
| 10/23/2008 | WO2008127125A2 System and method for testing drilling control systems |
| 10/23/2008 | WO2008125735A1 Method of modifying drilling pattern, rock drilling rig, and software product |
| 10/23/2008 | CA2684426A1 Method of modifying drilling pattern, rock drilling rig, and software product |
| 10/23/2008 | CA2682961A1 Method and device for controlling at least one drilling parameter for rock drilling |
| 10/23/2008 | CA2682417A1 Method and device for controlling at least one drilling parameter for rock drilling |
| 10/16/2008 | WO2008005222A3 Elongated cross coil assembly for use in borehole location determination |
| 10/16/2008 | US20080251292 Device for Monitoring a Drilling or Coring Operation and Installation Comprising Such a Device |
| 10/14/2008 | US7434457 Fluid property sensors |
| 10/09/2008 | US20080246483 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 10/09/2008 | US20080245569 Apparatus and Methods to Perform Focused Sampling of Reservoir Fluid |
| 10/09/2008 | CA2628660A1 Real-time onsite internet communication with well manager for constant well optimization |
| 10/08/2008 | EP1978206A2 Method and apparatus for controlling wellbore equipment |
| 10/08/2008 | EP1977189A1 Measuring device, rock breaking device and method of measuring stress wave |
| 10/02/2008 | WO2008118953A1 High pressure fracture tester |
| 10/02/2008 | WO2008085946A3 Drilling components and systems to dynamically control drilling dysfunctions and methods of drilling a well with same |
| 10/02/2008 | US20080236891 High pressure fracture tester |
| 10/01/2008 | CN100422504C Method of regulating layered water distribution using pressure wave |
| 09/25/2008 | WO2008115113A1 Method and device for the control of a rock drilling machine and a rock drilling machine |
| 09/25/2008 | WO2008093054A3 Systems and methods for monitoring sensor and actuator health and performance |
| 09/25/2008 | US20080230270 Arrangement for Positioning Rock Drilling Rig on Drilling Site |
| 09/24/2008 | CN201121517Y Electric driving type top driven well drilling device integrated electric-controlled hydraulic house |
| 09/23/2008 | CA2427754C Combined grip control of elevator and spider slips |
| 09/17/2008 | EP1461187B1 Method and apparatus for monitoring operation of percussion device |
| 09/16/2008 | US7424920 Method and device for impact loosening of thread joints |
| 09/11/2008 | US20080217019 Coiled tubing wellbore cleanout |
| 09/11/2008 | US20080216568 System and method for processing and transmitting information from measurements made while drilling |
| 09/09/2008 | US7422076 Autoreaming systems and methods |
| 09/09/2008 | US7421892 Method and apparatus for estimating a property of a downhole fluid using a coated resonator |
| 09/04/2008 | US20080210467 Use of cuttings tanks for recycling oil based mud and water |
| 09/03/2008 | EP1963621A1 Combined nitrogen generation system and well servicing fluid system in one power unit apparatus |
| 09/03/2008 | CN201110170Y System for remote measuring-controlling manufacturing parameter of solar power supply complete-wireless transmitter water injection well |
| 09/03/2008 | CN201110168Y System for remotely measuring-controlling manufacturing parameter of complete-wireless transmitter oil well |
| 08/28/2008 | WO2008102166A1 Rig engine control |
| 08/28/2008 | DE102007008373A1 Device for producing deep bores in earthy, pebbly or rocky subsoil with aid of boring system, has separate drive on bore-head, power supply, flexible flushing and supply line |
| 08/27/2008 | CN101253471A Adaptive user interface for rock drilling rig |
| 08/27/2008 | CN101253308A User interface for rock drilling rig |
| 08/27/2008 | CN101251006A Intelligentized control apparatus for coiled tubing injection head gripper mechanism |
| 08/26/2008 | US7416033 Instrumented drill head, related drilling/bolting machines, and methods |
| 08/26/2008 | US7416028 Telemetry system for the bi-directional communication of data between a well point and a terminal unit situated on the surface |
| 08/26/2008 | CA2270637C A method for determining drill collar whirl in a bottom hole assembly and method for determining borehole size |
| 08/26/2008 | CA2259569C Downhole tool and method |
| 08/21/2008 | WO2008101005A1 Ram bop position sensor |
| 08/21/2008 | CA2677653A1 Ram bop position sensor |
| 08/20/2008 | CN101248250A Combined nitrogen generation system and well servicing fluid system in one power unit apparatus |
| 08/20/2008 | CN101246583A Automatization system maintenance and charge reckoning method |