| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 06/22/2006 | US20060131077 Directional drill head |
| 06/22/2006 | US20060131024 Accessing subterranean resources by formation collapse |
| 06/22/2006 | CA2589046A1 Vibrational apparatus |
| 06/21/2006 | EP1507952B1 Underwater drilling rig |
| 06/21/2006 | EP1272727B1 Apparatus to actuate downhole tool |
| 06/21/2006 | CN1791732A Drill bit and drilling system with underreamer- and stabilisation-section |
| 06/21/2006 | CN1791731A Systems and methods using a continuously variable transmission to control one or more system components |
| 06/21/2006 | CN1789651A Hydraulic underreamer and sections for use therein |
| 06/21/2006 | CN1260458C Method of drilling an ultra-short radius borehole |
| 06/21/2006 | CN1260457C Apparatus and method for drilling and re-entering gas and oil branch well |
| 06/20/2006 | US7063172 Grounding rod driving device |
| 06/20/2006 | US7063158 Bottom tensioned offshore oil well production riser |
| 06/20/2006 | US7063145 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 06/20/2006 | CA2727885A1 Enhanced passive ranging methodology for well twinning |
| 06/20/2006 | CA2383421C Orientation and locator system |
| 06/15/2006 | WO2006062453A1 An ice drill |
| 06/15/2006 | WO2006061459A1 Method for casing drilling, drilling unit and adapter device |
| 06/15/2006 | US20060124363 Steerable drill bit arrangement |
| 06/15/2006 | US20060124362 Floating head reaction turbine rotor with improved jet quality |
| 06/15/2006 | US20060124360 Methods and apparatus for drilling, completing and configuring U-tube boreholes |
| 06/15/2006 | US20060124352 Control systems and methods for active controlled bottomhole pressure systems |
| 06/15/2006 | US20060124330 Construction apparatus |
| 06/15/2006 | US20060124306 Installation of one-way valve after removal of retrievable drill bit to complete oil and gas wells |
| 06/15/2006 | US20060124291 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 06/14/2006 | EP1669539A1 Angle and reactive torque control device for a gerotor type motor provided with a spindle and drilling bit in a bended drill string |
| 06/14/2006 | EP1668221A1 Method and device for boring holes in soil or rock |
| 06/14/2006 | EP1668220A1 Method and device for boring holes in soil or rock |
| 06/14/2006 | EP1668219A1 Steerable bit assembly and methods |
| 06/14/2006 | CN2787814Y Integrated whipstock |
| 06/14/2006 | CN1786409A Hydraulic pulse well drilling equipment |
| 06/13/2006 | US7059881 Spoolable composite coiled tubing connector |
| 06/13/2006 | US7059426 Acoustic flow pulsing apparatus and method for drill string |
| 06/13/2006 | US7059423 Jackhammer system |
| 06/13/2006 | CA2233227C Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means |
| 06/08/2006 | WO2006059066A1 Diverter tool |
| 06/08/2006 | WO2006002325A3 Method of developingand producing deep geothermal reservoirs |
| 06/08/2006 | US20060118339 Hole opener |
| 06/08/2006 | US20060118335 Automated arm for positioning of drilling tools such as an iron roughneck |
| 06/08/2006 | US20060118334 Oscillating shear valve for mud pulse telemetry |
| 06/08/2006 | US20060118333 Roller cone bits, methods, and systems with anti-tracking variation in tooth orientation |
| 06/08/2006 | US20060118309 Seabed installation apparatus |
| 06/08/2006 | US20060118298 Wellstring assembly |
| 06/07/2006 | EP1666696A2 Apparatus and method for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling |
| 06/07/2006 | EP1664484A1 Device and method of lining a wellbore |
| 06/07/2006 | EP1563160B1 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production. |
| 06/07/2006 | EP1451438B1 Drilling mast with movable and fixed unscrewing vice |
| 06/07/2006 | CN1782320A Method and system for precise drilling guidance of twin wells |
| 06/07/2006 | CN1258633C Method for drilling and drilling apparatus |
| 06/06/2006 | US7057316 Downhole torque generator |
| 06/06/2006 | US7056065 Device and method for changing lines |
| 06/06/2006 | US7055624 Guide rail system for a power tool |
| 06/06/2006 | US7055623 Method for the drilling of the initial phase of deep water oil wells with an underwater well head |
| 06/06/2006 | US7055621 Method and apparatus for replacement of underground pipe |
| 06/06/2006 | US7055608 Forming a wellbore casing while simultaneously drilling a wellbore |
| 06/06/2006 | US7055600 In situ thermal recovery from a relatively permeable formation with controlled production rate |
| 06/06/2006 | CA2426339C Method for forming a window in a tubular and apparatus for use in said method |
| 06/06/2006 | CA2229090C A subterranean apparatus for deflecting a cutting tool |
| 06/06/2006 | CA2161573C Drill rig with carrier/mast safety interlock |
| 06/01/2006 | WO2006056735A1 One trip milling system |
| 06/01/2006 | WO2005017305A8 Angle and reactive torque control device for a gerotor type motor provided with a spindle and drilling bit in a bended drill string |
| 06/01/2006 | US20060113114 Drilling tool and method |
| 06/01/2006 | US20060113113 Steerable underreamer/stabilizer assembly and method |
| 06/01/2006 | US20060113112 Method and system for precise drilling guidance of twin wells |
| 05/31/2006 | EP1567747A4 Method to install underground pipe casing |
| 05/31/2006 | EP1492935B1 Method and device for coring and/or directional drilling |
| 05/31/2006 | CN2784570Y Mechanical automatic vertical drilling tool |
| 05/31/2006 | CN2784569Y Window pre-killing completion device for branch well |
| 05/31/2006 | CN1780971A Method of creating a borehole in an earth formation |
| 05/30/2006 | US7052646 Igniter for oxygen lance for thermal cutting, drilling etc. |
| 05/30/2006 | US7051821 Adjustable hole cleaning device |
| 05/30/2006 | US7051807 In situ thermal recovery from a relatively permeable formation with quality control |
| 05/30/2006 | CA2527271A1 Method for precise drilling guidance of twin wells |
| 05/26/2006 | WO2006055953A1 Modular drillling apparatus with power and/or data transmission |
| 05/26/2006 | WO2006054079A1 System and method for drilling a borehole |
| 05/26/2006 | WO2006053434A1 Methods and apparatus for drilling, completing and configuring u-tube boreholes |
| 05/26/2006 | CA2760495A1 Methods and apparatus for drilling, completing and configuring u-tube boreholes |
| 05/25/2006 | US20060111247 Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| 05/25/2006 | US20060108149 Method and apparatus for forming bored hole |
| 05/24/2006 | EP1366268B1 Jet cutting device with deflector |
| 05/24/2006 | EP1266124B1 Arrangement for determining position of unmanned mining vehicles |
| 05/24/2006 | CN2782911Y Wall hook type tail pipe hanging device for lateral well |
| 05/24/2006 | CN1777736A Wellstring assembly |
| 05/24/2006 | CN1777734A Expanded liner system and method |
| 05/24/2006 | CN1777733A Telescopic feed beam for rock drill and method of measuring rock drill travel |
| 05/24/2006 | CN1776196A Method and system for accessing subterranean deposits from the surface |
| 05/24/2006 | CN1776185A High-pressure water jet drill bit capable of punching and cutting by switching of water pressure |
| 05/24/2006 | CN1776113A Bottom-expanding equipment for pipeline sinking precast reinforced concrete pile |
| 05/23/2006 | US7048470 Guide device in an offshore drilling installation |
| 05/23/2006 | US7048074 Control system for a percussion drive |
| 05/23/2006 | US7048062 Method of selecting tubular members |
| 05/23/2006 | US7048050 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 05/23/2006 | CA2395753C Integrated transmitter surveying while boring (swb) entrenching powering device for the continuation of a guided bore hole |
| 05/23/2006 | CA2387616C Apparatus for transferring electrical energy between rotating and non-rotating members of downhole tools |
| 05/23/2006 | CA2350143C Self-controlled directional drilling systems and methods |
| 05/23/2006 | CA2292676C Electrically sequenced tractor |
| 05/23/2006 | CA2228494C Drilling method and casing shoe |
| 05/22/2006 | CA2491273A1 System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber |
| 05/19/2006 | CA2527385A1 Directional drill head |
| 05/18/2006 | WO2006053294A1 Method and system for predictive stratigraphy images |
| 05/18/2006 | WO2006051168A1 Arrangement for sucking dust |