| 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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| 06/23/2010 | CN201513163U Directional drilling crossing joint direction control device |
| 06/23/2010 | CN201513115U High-low double-speed pressurizing system of rotary drilling rig |
| 06/23/2010 | CN101755103A Method and apparatus for establishing a manual governor control setting in an electro-hydraulic system |
| 06/23/2010 | CN101755102A Constant-mode auto-drill with pressure derivative control |
| 06/23/2010 | CN101182755B Down-hole horizontal boring machine distribution control method |
| 06/22/2010 | US7741249 Geosynthetic composite for borehole strengthening |
| 06/17/2010 | US20100147589 Rig control system architecture and method |
| 06/17/2010 | US20100147588 Device and Method Providing Redundant Automatic Clutch Release and Engine Shut Down on a Drilling or Production Rig |
| 06/17/2010 | CA2686251A1 Rig control system architecture and method |
| 06/16/2010 | CN201507299U GPS remote monitoring system device for rotary drilling rig |
| 06/16/2010 | CN1575377B Method and system for forming holes in stratum, holes formed by the method and system, and compound generated thereby |
| 06/16/2010 | CN101737030A Method for controlling well depth positioning in deposit drilling |
| 06/16/2010 | CN101027455B Method for controlling percussive rock drilling and rock drilling equipment |
| 06/15/2010 | US7737863 Common interface architecture for horizontal directional drilling machines and walk-over guidance systems |
| 06/10/2010 | WO2010064031A1 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly |
| 06/10/2010 | WO2010063982A1 Method and apparatus for reducing stick-slip |
| 06/10/2010 | CA2793117A1 Methods and apparatus for reducing stick-slip |
| 06/10/2010 | CA2745198A1 Method and apparatus for reducing stick-slip |
| 06/10/2010 | CA2745062A1 Method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly |
| 06/09/2010 | CN201502378U Controller of handheld emulsion drill rig |
| 06/09/2010 | CN1575373B Method for in situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 06/09/2010 | CN101070755B Pressure-control well-drilling device based two gradients |
| 06/09/2010 | CA2693716A1 Real time well data alerts |
| 06/03/2010 | US20100133007 Method for determining formation integrity and optimum drilling parameters during drilling |
| 06/03/2010 | US20100133006 Downhole communication devices and methods of use |
| 06/03/2010 | US20100132957 Downhole shape memory alloy actuator and method |
| 06/02/2010 | CN201496057U Electrical system of long spiral drilling machine |
| 06/02/2010 | CN201496056U Well drilling monitor system |
| 06/02/2010 | CN101718182A Ball valve type inside and outside integrative downhole blow-out preventer |
| 06/02/2010 | CN101718181A Lifting valve type underground inside-outside integrated blowout preventer |
| 06/01/2010 | CA2485810C System and method to control multiple tools through one control line |
| 06/01/2010 | CA2469179C Method and equipment for controlling operation of rock drilling apparatus |
| 06/01/2010 | CA2414405C Method and system for modeling geological structures using an unstructured four-dimensional mesh |
| 05/27/2010 | US20100126770 Non-Azimuthal and Azimuthal Formation Evaluation Measurement in a Slowly Rotating Housing |
| 05/27/2010 | US20100126769 Method of modifying drilling pattern, rock drilling rig, and software product |
| 05/27/2010 | US20100126727 In situ recovery from a hydrocarbon containing formation |
| 05/26/2010 | EP2188491A1 Method and software product for designing drilling pattern for rock cavity excavation |
| 05/26/2010 | CN201486468U Friction reduction device for underground horizontal drilling machine of oil-water well |
| 05/26/2010 | CN101713285A Calculation method for measuring distance between adjacent wells by electromagnetic detection while drilling |
| 05/25/2010 | US7721821 Underground boring machine and method for controlling underground boring |
| 05/25/2010 | US7721816 Drilling/bolting machine having a manual operator input device with enable switch and related methods |
| 05/25/2010 | CA2383710C Feature modeling in a finite element model |
| 05/20/2010 | WO2010019798A3 Bottom hole assembly configuration management |
| 05/19/2010 | EP2186994A2 Drilling device and drilling method |
| 05/19/2010 | EP2185791A1 Method for managing production from a hydrocarbon producing reservoir in real-time |
| 05/19/2010 | CN201474688U Integrated drilling instrument |
| 05/19/2010 | CN201474685U Drill rod return positioning controller of rotary drilling rig |
| 05/19/2010 | CN201474684U Control system for oil pumping system |
| 05/19/2010 | CN101711304A System and method for testing drilling control systems |
| 05/18/2010 | US7717193 AC powered service rig |
| 05/18/2010 | US7717190 Method for controlling percussion device, software production, and percussion device |
| 05/14/2010 | WO2010010455A3 System and method for automating exploration of production of subterranean resources |
| 05/12/2010 | DE102008056087A1 Verfahren zur Messung von Temperatur und/oder Druck an einer Rohrleitung, insbesondere im Offshore-Bereich von Öl- und Gasförderanlagen, und zugehörige Vorrichtung A method for measurement of temperature and / or pressure in a pipe, particularly in the offshore oil and gas production facilities, and related apparatus |
| 05/12/2010 | CN201461807U Closed type oil cylinder of brake clearance of hydraulic grease injection adjusting brake calipers |
| 05/12/2010 | CN201460863U Managed pressure drilling system |
| 05/12/2010 | CN201460862U Segmented magnet sensing array system for controlling direction of counter-through of long-distance and large-caliber oil and gas pipeline |
| 05/12/2010 | CN201460861U Speed regulation control device of rotary drill rig |
| 05/12/2010 | CN201460860U Drilling detection collision preventing alarm system |
| 05/12/2010 | CN101705784A Hole bottom power-driven impactor control system |
| 05/06/2010 | US20100108384 Adaptive drilling control system |
| 05/06/2010 | US20100108383 Drilling Apparatus and Method |
| 05/06/2010 | US20100108382 Shape Memory Alloy Actuated Steerable Drilling Tool |
| 05/06/2010 | US20100108381 Method and device for controlling at least one drilling parameter for rock drilling |
| 05/06/2010 | US20100108380 Methods and apparatuses for estimating drill bit cutting effectiveness |
| 05/06/2010 | US20100108379 Systems and methods of forming subsurface wellbores |
| 05/05/2010 | CN201448104U Anti-lifting and anti-blocking hydraulic system in driller |
| 05/05/2010 | CN201448103U Pumping unit remote monitoring device based on 3G |
| 05/05/2010 | CN201448102U Novel disk-brake automatic bit-feeding hydraulic port |
| 05/05/2010 | CN201448101U Drilling control device for drilling ship |
| 04/29/2010 | WO2010014398A3 Electric wireline insert safety valve |
| 04/28/2010 | EP2179133A2 System and method for performing oilfield simulation operations |
| 04/28/2010 | CN201443386U Automatic monitoring device for cantilever-type oil pumping unit |
| 04/27/2010 | US7707009 Drill bit performance analysis tool |
| 04/27/2010 | US7705878 Method and apparatus to create a down-hole video log to transmit down-hole video data |
| 04/27/2010 | CA2467818C Method of rock drilling |
| 04/22/2010 | WO2010045115A2 Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized |
| 04/22/2010 | WO2010043951A2 System and method for online automation |
| 04/22/2010 | CA2734642A1 System and method for online automation |
| 04/22/2010 | CA2683359A1 Downhole surveying utilizing multiple measurements |
| 04/21/2010 | EP2177710A1 Three dimensional steerable system |
| 04/21/2010 | EP2176492A1 Method and apparatus for drilling hole into bedrock |
| 04/21/2010 | CN101696628A Steering bias tool and steering bias method |
| 04/21/2010 | CN101696627A Accident monitoring method in welldrilling process |
| 04/20/2010 | US7699120 On demand actuation system |
| 04/20/2010 | CA2471067C Methods and apparatus for actuating a downhole tool |
| 04/15/2010 | WO2010042050A1 A method and an arrangement for controlling a rock drill |
| 04/15/2010 | US20100089644 Drilling tool and drilling method |
| 04/15/2010 | CA2735960A1 A method and an arrangement for controlling a rock drill |
| 04/14/2010 | EP2175100A1 Three dimensional steerable system |
| 04/14/2010 | EP2173959A1 Method and device for controlling a rock drill rig |
| 04/14/2010 | CN201437723U Automatic control device for horizontal logging |
| 04/14/2010 | CN101694152A Multi-level fine choke manifold and automatic control system |
| 04/13/2010 | CA2531397C Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bits |
| 04/09/2010 | CA2680894A1 Drilling method |
| 04/08/2010 | WO2010037905A1 Method and arrangement in rock drilling rig |
| 04/08/2010 | WO2010003080A3 Method for estimating the probability of collision between wells |
| 04/08/2010 | US20100086359 Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 04/08/2010 | US20100084192 Method of downlinking to a downhole tool |
| 04/08/2010 | US20100084191 Combining belief networks to generate expected outcomes |
| 04/08/2010 | US20100084130 Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string |