| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 02/07/2007 | CN1298960C Igniter for oxygen lance for igniting thermal oxygen lance |
| 02/06/2007 | US7172038 Well system |
| 02/06/2007 | US7172025 System for lining a section of a wellbore |
| 02/06/2007 | CA2410124C Method and apparatus for providing plural flow paths at a lateral junction |
| 02/06/2007 | CA2296464C Drilling system with means for anchoring in the borehole |
| 02/01/2007 | WO2007014111A2 Downhole tool position sensing system |
| 02/01/2007 | WO2007012858A1 Steerable drilling system |
| 02/01/2007 | US20070023204 Method and device for drilling holes in soil or rock material |
| 02/01/2007 | US20070023190 Stab Guide |
| 01/31/2007 | EP1748150A2 Method of creating a borehole in an earth formation |
| 01/31/2007 | EP1747344A1 Enlarging and stabilising tool for a borehole and method for the use thereof |
| 01/31/2007 | EP1747343A1 Pipe tension measuring device |
| 01/31/2007 | CN2864079Y Locating device for naked eye sub-well oblique machine |
| 01/31/2007 | CN2864071Y Pre-perforated split leads |
| 01/31/2007 | CN2864070Y Sub-well used oblique machine |
| 01/31/2007 | CN2864069Y Mining drill power head drilling angle regulating mechanism |
| 01/31/2007 | CN2864068Y Column rotary locking cover |
| 01/31/2007 | CN2864067Y Electrically controlled diameter changeable type stabilizer |
| 01/31/2007 | CN2864066Y Curve guide shoe for sub-well re-propelling |
| 01/31/2007 | CN1297728C Method for controlling a drilling sequence, a rock drilling apparatus |
| 01/31/2007 | CN1297725C Drilling device for earth drill |
| 01/30/2007 | US7168510 Electrical transmission apparatus through rotating tubular members |
| 01/30/2007 | US7168499 Radial expansion of tubular members |
| 01/30/2007 | US7168497 Downhole sealing |
| 01/30/2007 | CA2513867C Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance |
| 01/30/2007 | CA2217056C A surface controlled wellbore directional steering tool |
| 01/26/2007 | CA2513775A1 Guide track system for a drilling rig floor robot |
| 01/25/2007 | WO2007011906A1 Latchable hanger assembly for liner drilling and completion |
| 01/25/2007 | WO2007009189A1 Coiled tubing drilling system |
| 01/25/2007 | US20070017707 One-step directional coring or drilling system |
| 01/25/2007 | US20070017705 Downhole Tool Position Sensing System |
| 01/25/2007 | US20070017669 Device and method of lining a wellbore |
| 01/25/2007 | DE19737936B4 Abbaueinrichtung für den Untertagebergbau, insbesondere für die Kohlegewinnung in Strebbetrieben Mining equipment for underground mining, especially for coal mining in longwall operations |
| 01/24/2007 | CN1900475A Drilling/feed drill/withdrawing drill sealing device for high pressure water rock layer and grouting withdrawing drill method |
| 01/23/2007 | US7165634 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 01/23/2007 | US7165632 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 01/23/2007 | CA2289129C Earth formation surveying device |
| 01/23/2007 | CA2255065C Downhole apparatus |
| 01/18/2007 | WO2007008947A1 Whipstock liner |
| 01/18/2007 | WO2007008085A1 System and method for dynamic sealing around a drill stem |
| 01/18/2007 | WO2005119301A3 Downhole signal source |
| 01/18/2007 | WO2005047639A3 Subsea completion system and method of using same |
| 01/18/2007 | US20070012484 Method and device for drilling a hole in soil or rock material and for forming an anchoring |
| 01/18/2007 | US20070012446 Earth loop installed with sonic apparatus |
| 01/17/2007 | EP1743086A1 Method and apparatus and program storage device adapted for automatic drill string design based on wellbore geometry and trajectory requirements |
| 01/17/2007 | EP1664484B1 Device and method of lining a wellbore |
| 01/16/2007 | US7163061 Apparatus and method for supporting structures on offshore platforms |
| 01/11/2007 | WO2007004969A1 Light metal feed beam for use on a drill rig |
| 01/11/2007 | WO2007004887A1 Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
| 01/11/2007 | WO2007002987A1 Drill slide for rock drilling apparatus |
| 01/11/2007 | WO2006105014A3 Cryogenic pulsejet |
| 01/11/2007 | WO2006044763A3 Subsea junction plate assembly running tool and method of installation |
| 01/11/2007 | US20070007043 Cutting device with multiple cutting structures |
| 01/11/2007 | US20070007042 Electric horizontal directional drilling machine system |
| 01/11/2007 | US20070007039 Arrangement for controlling rock drilling |
| 01/11/2007 | CA2613824A1 Drill slide for rock drilling apparatus |
| 01/10/2007 | EP1740871A1 Tube connector and device for production of a tube connector |
| 01/10/2007 | EP1740793A1 A telescopic conductor casing for a well installation and a method of driving same into the underground |
| 01/10/2007 | EP1649132B1 Tool for excavating an object |
| 01/10/2007 | EP1649131B1 System and method for making a hole in an object |
| 01/10/2007 | EP1350003B8 Method of drilling and operating a subsea well |
| 01/10/2007 | EP1222359B1 Apparatus for transferring electrical energy between rotating and non-rotating members of downhole tools |
| 01/10/2007 | CN2856374Y Directional positioner for reaccess of branch well |
| 01/10/2007 | CN1891974A Underbalance well completion method and apparatus |
| 01/10/2007 | CN1891914A Spinning sinking pipe mixture-pumping pouring-piling construction method and appliance |
| 01/09/2007 | US7159675 Method of drilling a borehole into an earth formation |
| 01/09/2007 | US7159674 Method and device for directional down-hole drilling |
| 01/09/2007 | US7159673 Drilling system with expandable sleeve |
| 01/09/2007 | US7159661 Multilateral completion system utilizing an alternate passage |
| 01/09/2007 | US7159654 Apparatus identification systems and methods |
| 01/09/2007 | CA2422458C Sub apparatus with exchangeable modules |
| 01/09/2007 | CA2355613C Improved steerable drilling system and method |
| 01/09/2007 | CA2322917C Trolley and traveling block system |
| 01/09/2007 | CA2293746C Method of controlling rock drilling |
| 01/09/2007 | CA2260358C Sealed lateral wellbore junction assembled downhole |
| 01/09/2007 | CA2235134C Closed loop drilling system |
| 01/04/2007 | WO2007002010A2 Method and apparatus for conducting earth borehole operations using coiled casing |
| 01/04/2007 | WO2007000492A1 Arrangement for positioning rock drilling rig on drilling site |
| 01/04/2007 | WO2007000488A1 Arrangement for positioning drilling unit |
| 01/04/2007 | WO2006101606A3 Method for running tubulars in wellbores |
| 01/04/2007 | WO2006057996A3 Dual bore well jumper |
| 01/04/2007 | WO2006033906A3 A subsea wellhead arrangement for hydraulically pumping a well |
| 01/04/2007 | US20070000696 Mud motor pressure absorption tools |
| 01/04/2007 | DE102005030066A1 Drilling machine for drilling into the ground comprises a first drive for rotating a first drilling column about its own axis and a second drive for rotating a second drilling column about its own axis |
| 01/04/2007 | DE102005014230B4 Vorrichtung zum Einbringen von Bohrungen in einen Hang An apparatus for drilling holes into a slope |
| 01/03/2007 | CN2854075Y Two-stage cutting gun for underground hydraulic fracture cutting |
| 01/03/2007 | CN2854043Y Drilling remote control reducing stabilizer |
| 01/03/2007 | CN2853902Y Boring pump concrete placing column forming device with thermal insulation device and capable of construction at low temp |
| 01/02/2007 | US7156192 Open hole tractor with tracks |
| 01/02/2007 | US7156169 Electrically operated actuation tool for subsea completion system components |
| 01/02/2007 | CA2451658C Drillable junction joint |
| 01/02/2007 | CA2294447C Drill bit directional nozzle |
| 01/02/2007 | CA2170183C Improvements in or relating to steerable rotary drilling systems |
| 12/28/2006 | WO2006138651A2 System and method for acquiring information during underground drilling operations |
| 12/28/2006 | WO2006105012A3 System for rapidly boring through materials |
| 12/28/2006 | WO2006057995A3 Well production and multi-purpose intervention access hub |
| 12/28/2006 | WO2005038188A3 Inline compensator for a floating drilling rig |
| 12/28/2006 | DE102005029595A1 Well drilling device, has deflection roller with sensor arranged to sense constantly or periodically whether roller is loaded by cable winch or chain, and emitting optical and/or acoustic signal to environment |
| 12/28/2006 | DE10116103B4 Vorrichtung zum Auffahren einer unterirdischen Bohrung Apparatus for tailgating a subterranean well |
| 12/27/2006 | CN2851520Y Hydraulic diameter-changeable type stabilizer |