| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 04/19/2006 | CN1760501A Positioning-method and devices through bi-directional bores |
| 04/19/2006 | CN1760470A Arched depressor in use for pile molding equipment with branch pieces and/or bearing disks |
| 04/18/2006 | US7028789 Drilling assembly with a steering device for coiled-tubing operations |
| 04/18/2006 | US7028779 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 04/18/2006 | CA2380034C Long reach rotary drilling assembly |
| 04/18/2006 | CA2291600C Actively controlled rotary steerable system and method for drilling wells |
| 04/18/2006 | CA2271655C Process and device for simultaneously drilling and lining a hole |
| 04/18/2006 | CA2248683C Underwater installation and method for building of an underwater installation |
| 04/18/2006 | CA2192213C Whipstock assembly |
| 04/13/2006 | WO2006038851A1 Sleeve arrangement |
| 04/13/2006 | WO2006038850A1 Housing arrangement |
| 04/13/2006 | WO2005120153A3 Method and system for deep sea drilling |
| 04/13/2006 | US20060076162 Self cleaning coring bit |
| 04/13/2006 | CA2576897A1 Sleeve arrangement |
| 04/13/2006 | CA2576893A1 Housing arrangement |
| 04/12/2006 | EP1644671A1 A method of constructing a geothermal heat exchanger |
| 04/12/2006 | EP1644608A1 Coupling for dual member pipe |
| 04/12/2006 | EP1614852A8 Hole opener |
| 04/11/2006 | US7027925 Adaptive borehole assembly visualization in a three-dimensional scene |
| 04/11/2006 | US7025156 Rotary drill bit for casting milling and formation drilling |
| 04/11/2006 | US7025154 Method and system for circulating fluid in a well system |
| 04/11/2006 | US7025152 Using a rotating inner member to drive a tool in a hollow outer member |
| 04/11/2006 | US7025149 Power tool with detachable drive end |
| 04/11/2006 | US7025144 Wellbore liner system |
| 04/11/2006 | US7025130 Methods and apparatus to control downhole tools |
| 04/11/2006 | CA2387299C Drilling tool with non rotating sleeve |
| 04/06/2006 | US20060070772 Method for varying the density of drilling fluids in deep water oil and gas drilling applications |
| 04/06/2006 | DE10353442B4 Vorrichtung zum platzsparenden grabenlosen Einziehen von Vortriebskörpern mittels eines flexiblen Zugmittels Apparatus for space-saving grave without retraction of propulsion bodies by means of a flexible traction |
| 04/06/2006 | CA2581716A1 Single solenoid guide system |
| 04/05/2006 | EP1643078A2 Sonic drill head |
| 04/05/2006 | EP1409835B1 Drilling direction control device |
| 04/05/2006 | EP1116350B1 Drill string telemetry with insulator between receiver and transmitter |
| 04/05/2006 | CN2769348Y Apparatus for multi-section pressing and expanding auger pipeline sinking pile |
| 04/04/2006 | US7021406 Method of drilling with magnetorheological fluid |
| 04/04/2006 | US7021404 Method and device for deviated coring and/or drilling |
| 04/04/2006 | US7021403 Method of establishing positions of locating field detectors and path mapping in underground boring tool applications |
| 04/04/2006 | CA2421712C Methods and apparatus for forming a lateral wellbore |
| 03/30/2006 | US20060065442 Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance |
| 03/30/2006 | US20060065402 Drilling system and method for controlling equivalent circulating density during drilling of wellbores |
| 03/30/2006 | DE102004044747A1 Verfahren und Spülkopf zum Freilegen von im Erdreich verlegten Anlagen A method for exposing and flushing head laid in the ground equipment |
| 03/29/2006 | EP1640507A1 Pile drilling apparatus |
| 03/29/2006 | EP1466068B1 Dual-member pipe driven power generator |
| 03/29/2006 | EP1332269B1 Device for producing a peripheral hole |
| 03/29/2006 | EP1159506B1 Steerable modular drilling assembly |
| 03/29/2006 | CN2767634Y Collapse preventing hole enlarger for drilling through soft stratum by horizontal directional drill |
| 03/29/2006 | CN1247874C Stepless reducing gauge protection device |
| 03/28/2006 | US7017684 Jet cutting device with deflector |
| 03/28/2006 | US7017681 Device for performing hydrodynamic action on wellbore walls |
| 03/28/2006 | US7017679 Device for the continuous adjustment of unbalance of steerable vibration plates |
| 03/28/2006 | US7017671 Mud saver valve |
| 03/28/2006 | US7017662 High temperature environment tool system and method |
| 03/28/2006 | CA2368915C Wireless packer/anchor setting or activation |
| 03/28/2006 | CA2233086C Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access |
| 03/28/2006 | CA2196633C Apparatus and method for directional drilling using coiled tubing |
| 03/23/2006 | US20060062638 Floatation module and method |
| 03/23/2006 | US20060060385 Reverse-circulation drilling method and system |
| 03/23/2006 | US20060060383 Method and device for drilling a channel |
| 03/23/2006 | US20060060381 Apparatus and methods for improved fluid displacement in subterranean formations |
| 03/23/2006 | US20060060353 Earth loop installed with sonic apparatus |
| 03/23/2006 | DE102004036425A1 Vorrichtung und Verfahren zum Verbinden eines Rohrstrangs mit einem Bohr-, Aufweit- oder Einzugsgerät Apparatus and method for connecting a pipe string with a drilling, widening, or drawing device |
| 03/23/2006 | DE10106942B4 Pneumatisches Bodenstechwerkzeug mit beweglichem Meißelkopf Pneumatic floor grooving tool with movable cutter head |
| 03/22/2006 | EP1558831A4 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications |
| 03/22/2006 | EP1419308B1 Drilling tool |
| 03/22/2006 | EP1242710B1 Remote lock-out system and method for a horizontal direction drilling system |
| 03/21/2006 | US7013997 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 03/21/2006 | US7013995 Compositions and processes for treating subterranean formations |
| 03/21/2006 | US7013994 Directional drilling apparatus |
| 03/21/2006 | US7013992 Borehole stabilization while drilling |
| 03/21/2006 | US7013991 Obstacle detection system for underground operations |
| 03/21/2006 | US7013990 Apparatus and method for simultaneously locating a fixed object and tracking a beacon |
| 03/21/2006 | US7013988 Method and apparatus for moving a mass |
| 03/21/2006 | US7013980 Hydraulically actuated control system for use in a subterranean well |
| 03/21/2006 | CA2077177C Modulated bias units for steerable rotary drilling systems |
| 03/16/2006 | WO2006029379A1 Control systems and methods for active controlled bottomhole pressure systems |
| 03/16/2006 | WO2006027553A1 Winch assembly |
| 03/16/2006 | WO2006027541A1 Method for drilling oil and gas wells |
| 03/16/2006 | US20060054362 Bit assembly for a hammering drill |
| 03/16/2006 | US20060054360 Apparatus for guiding and steering an earth boring machine and casing assembly |
| 03/16/2006 | US20060054356 Working platform |
| 03/16/2006 | US20060054354 Downhole tool |
| 03/16/2006 | US20060054328 Process of installing compliant offshore platforms for the production of hydrocarbons |
| 03/16/2006 | DE10116363B4 Bohrkopf einer Bohreinrichtung, insbesondere Spülbohrkopf einer Flachbohreinrichtung Drill a drilling, in particular a power swivel Flachbohreinrichtung |
| 03/16/2006 | CA2578077A1 Winch assembly |
| 03/16/2006 | CA2575603A1 Method for drilling oil and gas wells |
| 03/15/2006 | EP1534653A4 Handheld tool for breaking up rock |
| 03/15/2006 | CN1748073A Downhole tool |
| 03/14/2006 | US7011168 Hole forming tool |
| 03/14/2006 | US7011161 Structural support |
| 03/14/2006 | US7011156 Percussion tool and method |
| 03/14/2006 | US7011152 Integrated subsea power pack for drilling and production |
| 03/14/2006 | US7011151 Sealed lateral wellbore junction |
| 03/14/2006 | CA2432258C Floating instrument insert for a tool |
| 03/14/2006 | CA2381528C Bit connector |
| 03/14/2006 | CA2351978C Drilling direction control device |
| 03/14/2006 | CA2329472C Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 03/14/2006 | CA2309674C Soil consolidation apparatus, tool and method |
| 03/14/2006 | CA2291535C Method and apparatus for drilling boreholes in earth formations (drilling liner systems) |
| 03/14/2006 | CA2239734C Fluid drilling system |
| 03/09/2006 | WO2006005916A3 Closed loop control bore hole drilling system |
| 03/09/2006 | US20060048972 Pressure activated release member for an expandable drillbit |