| 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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| 04/15/2004 | US20040069539 Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations |
| 04/13/2004 | US6719069 Underground boring machine employing navigation sensor and adjustable steering |
| 03/31/2004 | EP1402145A1 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 03/30/2004 | US6712160 Leadless sub assembly for downhole detection system |
| 03/30/2004 | CA2230691C An improved electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores |
| 03/25/2004 | US20040059554 Method of assaying downhole occurrences and conditions |
| 03/24/2004 | EP1399298A1 Method for controlling operating cycle of impact device, and impact device |
| 03/23/2004 | US6708783 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 03/18/2004 | US20040050589 Method of downhole drilling and apparatus therefor |
| 03/18/2004 | DE10241561A1 Method for remote control boring has the displacement of a pneumatically propelled boring head determined by monitoring the movement of the pneumatic supply hose |
| 03/17/2004 | EP1070191A4 Method and system for optimizing penetration rate |
| 03/16/2004 | CA2238200C Head brake release with memory |
| 03/16/2004 | CA2221152C Downhole flow control devices |
| 03/11/2004 | WO2004020778A1 Automated method and system for recognizing well control events |
| 03/11/2004 | US20040045739 Mapping tool for tracking and/or guiding an underground boring tool |
| 03/10/2004 | EP1395733A1 Drilling control arrangement |
| 03/04/2004 | US20040040746 Automated method and system for recognizing well control events |
| 03/04/2004 | US20040040715 In situ production of a blending agent from a hydrocarbon containing formation |
| 02/24/2004 | CA2144497C Modular measurement while drilling sensor assembly |
| 02/19/2004 | WO2003036024A3 Method and system for in situ heating a hydrocarbon containing formation by a u-shaped opening |
| 02/18/2004 | CN1475653A Well drilling parameter collection and treatment method |
| 02/17/2004 | US6691802 Internal power source for downhole detection system |
| 02/12/2004 | US20040028476 System and method for automatically drilling and backreaming a horizontal bore underground |
| 02/10/2004 | CA2047006C Method of determining the drilling conditions associated with the drilling of a formation with a drag bit |
| 02/05/2004 | WO2004012040A2 Automated rig control management system |
| 02/05/2004 | WO2004011775A2 Measurement- while-drilling assembly using real-time toolface oriented measurements |
| 02/05/2004 | US20040020691 Continuous wellbore drilling system with stationary sensor measurements |
| 01/29/2004 | US20040016571 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 01/27/2004 | US6681633 Spectral power ratio method and system for detecting drill bit failure and signaling surface operator |
| 01/21/2004 | CN1470037A Method of selecting a cutting system |
| 01/15/2004 | US20040008030 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 01/15/2004 | US20040007387 Smart-ultrasonic/sonic driller/corer |
| 01/08/2004 | WO2003089751A3 Method for improving drilling depth measurements |
| 01/07/2004 | EP1224378B1 Apparatus for manipulating a load |
| 01/06/2004 | US6674432 Method and system for modeling geological structures using an unstructured four-dimensional mesh |
| 01/01/2004 | US20040000430 Iterative drilling simulation process for enhanced economic decision making |
| 12/31/2003 | WO2004001352A2 Apparatus and method of monitoring and signaling for downhole tools |
| 12/31/2003 | CN2596010Y Video frequency recording system for well-drilling process |
| 12/30/2003 | US6668465 Continuous measurement-while-drilling surveying |
| 12/25/2003 | US20030234119 Well drilling control system |
| 12/25/2003 | US20030233873 Apparatus and method of monitoring and signaling for downhole tools |
| 12/09/2003 | US6662110 Drilling rig closed loop controls |
| 12/09/2003 | US6659200 Actuator assembly and method for actuating downhole assembly |
| 12/04/2003 | WO2003100216A1 Automated method and system for determining the stae of well operations |
| 12/03/2003 | EP1117901B1 Method for controlling a horizontal drilling machine |
| 11/27/2003 | WO2003097989A1 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 11/27/2003 | US20030220775 Method for quantifying uncertainties related to continuous and discrete parameters descriptive of a medium by construction of experiment designs and statistical analysis |
| 11/27/2003 | US20030220742 Automated method and system for determining the state of well operations and performing process evaluation |
| 11/26/2003 | EP1365103A2 Continuous wellbore drilling system with stationary sensor measurements |
| 11/25/2003 | US6651755 Macro assisted control system and method for a horizontal directional drilling machine |
| 11/19/2003 | EP1153194B1 Automated bore planning method and apparatus for horizontal directional drilling |
| 11/18/2003 | US6648082 Differential sensor measurement method and apparatus to detect a drill bit failure and signal surface operator |
| 11/13/2003 | WO2003036030A3 In situ thermal processing and upgrading of produced hydrocarbons |
| 11/13/2003 | US20030212495 Real-time method for maintaining formation stability and monitoring fluid-formation interaction |
| 11/12/2003 | EP1009912B1 Method of controlling rock drilling |
| 11/06/2003 | US20030205410 Remote control for a drilling machine |
| 11/06/2003 | US20030205409 Apparatus and method for maintaining control of a drilling machine |
| 11/06/2003 | US20030205378 In situ recovery from lean and rich zones in a hydrocarbon containing formation |
| 11/04/2003 | US6640908 Apparatus and method for formation testing while drilling with minimum system volume |
| 11/04/2003 | US6640907 Mapping tool for tracking and/or guiding an underground boring tool |
| 10/30/2003 | WO2003089760A1 Telemetry system for the bi-directional communication of data between a well point and a terminal unit situated on the surface |
| 10/30/2003 | WO2003089759A1 Method and apparatus for determining drill string movement mode |
| 10/30/2003 | WO2003089758A1 System and method for interpreting drilling data |
| 10/30/2003 | WO2003089751A2 Method for improving drilling depth measurements |
| 10/30/2003 | US20030201098 In situ recovery from a hydrocarbon containing formation using one or more simulations |
| 10/30/2003 | US20030200995 Cleaning bore hole using high energy, low energy jets |
| 10/29/2003 | EP1356186A1 Cloded loop fluid-handing system for well drilling |
| 10/28/2003 | US6640205 Method and device for investigating and identifying the nature of a material |
| 10/28/2003 | US6637523 Drilling process monitor |
| 10/28/2003 | US6637522 Enhanced computer control of in-situ drilling system |
| 10/23/2003 | US20030200003 Method of selecting a cutting system |
| 10/23/2003 | US20030196810 Providing heat from heaters to formation; allowing the heat to transfer to selected section of the formation; controlling the heat from heaters; producing a mixture from the formation |
| 10/23/2003 | US20030196804 Dynamic annular pressure control apparatus and method |
| 10/23/2003 | US20030196801 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 10/23/2003 | US20030196789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment |
| 10/23/2003 | US20030196788 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation |
| 10/16/2003 | WO2003036041A3 In situ recovery from a hydrocarbon containing formation using barriers |
| 10/16/2003 | US20030192691 In situ recovery from a hydrocarbon containing formation using barriers |
| 10/09/2003 | WO2003036038A3 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 10/08/2003 | EP1350309A2 Internal power source for downhole detection system |
| 10/08/2003 | EP1102917B1 Arrangement for controlling rock drilling |
| 10/07/2003 | US6629572 Operator workstation for use on a drilling rig including integrated control and information |
| 10/07/2003 | US6629570 Method of downhole drilling and apparatus therefor |
| 10/02/2003 | US20030187582 Method of assaying downhole occurrences and conditions |
| 10/02/2003 | US20030183390 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 10/02/2003 | CA2423795A1 Method to quantity uncertainty related to descriptive continuous and discrete parameters of an environment through experimental design construction and statistical analysis |
| 09/30/2003 | US6626238 Remote sensor for determining proper placement of elevator slips |
| 09/25/2003 | US20030177845 Torque measurement of hydraulic installer of earth anchor |
| 09/24/2003 | CN1122236C Apparatus and method of well management |
| 09/23/2003 | US6622611 Hydraulic device |
| 09/18/2003 | US20030173113 Automated bore planning method and apparatus for horizontal directional drilling |
| 09/18/2003 | US20030173072 Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 09/17/2003 | EP1042588B1 Method and arrangement for controlling feed in rock drilling |
| 09/17/2003 | CN1121545C Safety drilling equipment capable of automatically preventing overhead travelling crane from collising |
| 09/11/2003 | US20030168257 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model |
| 09/09/2003 | US6617854 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 09/09/2003 | US6616378 Device and method for storing and protecting data relating to pipe installation |
| 09/04/2003 | WO2003072907A1 Method for desinging a well completion |
| 09/03/2003 | EP1340069A2 Spectral power ratio method and system for detecting drill bit failure and signaling surface operator |
| 09/02/2003 | US6614360 Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers |