| 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) |
|---|
| 08/10/2011 | EP1299750B1 Method and system for solving finite element models using multi-phase physics |
| 08/10/2011 | CN102146779A Underground locating and angle-fixing drilling and windowing tool for horizontal well |
| 08/04/2011 | WO2011060358A3 Apparatus and method for activating and deactivating a downhole tool |
| 08/04/2011 | WO2011060005A3 System and method for well control |
| 08/04/2011 | WO2011055180A3 Drive mechanism |
| 08/04/2011 | WO2011037927A3 System and method for monitoring and controlling wellbore parameters |
| 08/04/2011 | US20110186353 System and Method for Monitoring and Controlling Underground Drilling |
| 08/03/2011 | CN201915935U 采用负载敏感液压传动系统控制的潜孔钻机 Using submersible drilling rig load sensing hydraulic transmission control |
| 08/03/2011 | CN201915870U 钻机钻杆半自动接卸杆机构 Drill rig semi-automatic loading and unloading lever mechanism |
| 08/03/2011 | CN102140910A Gas-liquid disc type brake control system |
| 08/03/2011 | CN101555797B Extraction device for undersea gas hydrate and extraction method thereof |
| 08/02/2011 | US7987925 Method and apparatus for collecting drill bit performance data |
| 08/02/2011 | US7987924 Automatic control system for connecting a dual-member pipe |
| 07/28/2011 | WO2011091368A2 System and method for performing an adaptive drilling operation |
| 07/28/2011 | WO2011091055A1 Control system for drilling operations |
| 07/27/2011 | EP2347287A2 Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor |
| 07/27/2011 | CN102134987A Construction assisting system of rotary digging rig |
| 07/27/2011 | CN102134965A Long positioned drill hole drilling tool for extracting gas from coal seam roof and construction method thereof |
| 07/27/2011 | CN102134963A Cylinder controlled automatic punching pile machine |
| 07/26/2011 | US7984769 Method and a device for directional control of a rock drilling machine |
| 07/21/2011 | US20110174541 Method and System for Predicting Performance of a Drilling System |
| 07/21/2011 | US20110174540 Draw-works for maneuvering of drilling devices |
| 07/21/2011 | US20110174539 Advanced Underground Homing System, Apparatus and Method |
| 07/21/2011 | US20110174538 Control system for drilling operations |
| 07/20/2011 | CN102132005A Drill bit with weight and torque sensors |
| 07/20/2011 | CN102128023A Comprehensive tripping monitoring operating system |
| 07/20/2011 | CN102128022A Drilling engineering early warning method and system thereof |
| 07/19/2011 | CA2665116C System and method for performing oilfield simulation operations |
| 07/14/2011 | WO2011085286A2 Downhole downlinking system employing a differential pressure transducer |
| 07/14/2011 | WO2011084153A1 Well control systems and methods |
| 07/14/2011 | WO2011083399A2 Methods and apparatus to process measurements associated with drilling operations |
| 07/14/2011 | WO2011035280A3 Systems and methods for improving drilling efficiency |
| 07/14/2011 | US20110169655 Method for a pressure release encoding system for communicating downhole information through a wellbore to a surface location |
| 07/14/2011 | US20110168444 Rotary Steerable Tool Employing a Timed Connection |
| 07/13/2011 | EP2342421A1 A method and an arrangement for controlling a rock drill |
| 07/13/2011 | CN201896579U Reciprocating outburst prevention drilling rig |
| 07/13/2011 | CN201896578U Outburst prevention drilling rig |
| 07/13/2011 | CN102121373A Lifting system of hollow traveling block drill |
| 07/13/2011 | CN102121372A Electrical control system for oil well maintenance vehicle |
| 07/12/2011 | CA2620905C Method and apparatus for determining destructive torque on a drilling assembly |
| 07/07/2011 | WO2011081723A2 Pressure and flow control in drilling operations |
| 07/07/2011 | WO2011044028A3 Oilfield operation using a drill string |
| 07/07/2011 | US20110162889 Boring tool control using remote locator |
| 07/07/2011 | US20110162888 System and method for the autonomous drilling of ground holes |
| 07/06/2011 | CN1601049B Automatic downlink system |
| 06/30/2011 | WO2011041562A3 Remotely controlled apparatus for downhole applications and methods of operation |
| 06/30/2011 | WO2011037925A3 Method for controlling fluid production from a wellbore by using a script |
| 06/30/2011 | US20110155462 System and method for automating exploration or production of subterranean resource |
| 06/30/2011 | US20110155461 System and apparatus for directing the drilling of a well |
| 06/30/2011 | DE19964397B4 Drill speed-feed control involves regulating feed depending on measured tool rotation so revolution rate is constant; feed is reduced, adjusted or reversed if rotation less than demand value |
| 06/30/2011 | CA2689477A1 System and apparatus for directing a survey of a well |
| 06/30/2011 | CA2689470A1 System and apparatus for directing the drilling of a well |
| 06/29/2011 | EP2339114A2 Analyzing toolface velocity to detect detrimental vibration during drilling |
| 06/29/2011 | CN201883980U Anti-object falling mud scraping device |
| 06/29/2011 | CN102112700A Method and apparatus for hydraulic steering of downhole rotary drilling systems |
| 06/29/2011 | CN102108854A Automatic anti-overturn control system and control method thereof for rotary drilling rig |
| 06/29/2011 | CN102108842A Over-uncoiling prevention device for rotary drilling rig |
| 06/28/2011 | US7968841 Force and acceleration sensor using four wave mixing technique |
| 06/28/2011 | US7967081 Closed-loop physical caliper measurements and directional drilling method |
| 06/28/2011 | US7967080 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 06/22/2011 | EP2334903A2 System and method for online automation |
| 06/22/2011 | CN201874551U Automatic feed control mechanism for coring water drill |
| 06/22/2011 | CN201874550U Auxiliary illuminating and monitoring control device for gas drainage drilling machine |
| 06/22/2011 | CN201874450U Outburst-prevention drilling machine used in coal mine |
| 06/22/2011 | CA2725976A1 Analyzing toolface velocity to detect detrimental vibration during drilling |
| 06/21/2011 | CA2608829C Electronically controlled earth drilling rig |
| 06/21/2011 | CA2481003C Method of localizing a hole drilled with a rock drilling machine |
| 06/16/2011 | US20110139506 Pressure and flow control in drilling operations |
| 06/15/2011 | CN201865654U Automatic return control device of rotary drilling machine |
| 06/14/2011 | CA2636249C Horizontal drilling system with oscillation control |
| 06/09/2011 | US20110132663 Wellbore steering based on rock stress direction |
| 06/08/2011 | EP2328723A1 Method and arrangement in rock drilling rig |
| 06/08/2011 | CN201857949U Vibration failure early-warning device of drill column |
| 06/08/2011 | CN1671944B Installation and use of removable heaters in a hydrocarbon containing formation |
| 06/07/2011 | US7954558 Devices and methods for power control in horizontal directional drilling |
| 06/07/2011 | US7954547 Gas flow system |
| 06/02/2011 | CA2723340A1 A system and method for the autonomous drilling of ground holes |
| 06/01/2011 | EP2327857A1 Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| 06/01/2011 | CN201853950U Highly protective type pumping unit control cabinet |
| 06/01/2011 | CN201851104U Pressurization control system of roller-bit hole rig |
| 06/01/2011 | CN201851103U Hole depth control system of roller-bit hole rig |
| 06/01/2011 | CN201851102U Drilling pressure and torque measuring-transmitting device |
| 06/01/2011 | CN201851101U Experimental measurement platform system applicable to high-power transmission and communication system |
| 06/01/2011 | CN201851002U PLC (Programmable Logic Controller) controlled frequency conversion pile driver |
| 06/01/2011 | CN101333909B Dash-proof distant control boring machine and its control method |
| 05/31/2011 | CA2451632C System and method for processing and transmitting information from measurements made while drilling |
| 05/25/2011 | CN101492996B Method for controlling rotate speed torquemoment of top driving device of oil rig |
| 05/24/2011 | CA2509704C Method and system for averting or mitigating undesirable drilling events |
| 05/24/2011 | CA2477242C Dynamic annular pressure control apparatus and method |
| 05/18/2011 | EP2321493A1 Remote actuation of downhole well tools |
| 05/18/2011 | CN201835810U Rotary drilling rig one-key drilling control device |
| 05/18/2011 | CN201835809U Real-time tension, depth and speed acquiring, displaying and recording controller |
| 05/18/2011 | CN102066687A Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 05/12/2011 | WO2011055180A2 Drive mechanism |
| 05/12/2011 | WO2011054210A1 Tool-pusher console of drilling simulator |
| 05/12/2011 | WO2011054209A1 Bop console of drilling simulator |
| 05/12/2011 | US20110108325 Integrating Multiple Data Sources for Drilling Applications |
| 05/12/2011 | US20110108324 Methods and systems for drilling boreholes |
| 05/12/2011 | US20110108323 Methods and systems for drilling boreholes |
| 05/11/2011 | EP2057344B1 A method for reaming in the construction of a well |