| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 02/01/2006 | CN1729343A Template and system of templates for drilling and completing offset well bores |
| 02/01/2006 | CN1727636A Method and system for accessing subterranean deposits from the surface |
| 02/01/2006 | CN1727633A Drill pipe of the center emplacement type jumbolter and construction method |
| 02/01/2006 | CN1239807C Boom arrangement for rock drilling apparatus |
| 01/31/2006 | US6991048 Wellbore plug system and method |
| 01/31/2006 | US6991047 Wellbore sealing system and method |
| 01/31/2006 | US6991046 Expandable eccentric reamer and method of use in drilling |
| 01/31/2006 | US6991045 Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 01/31/2006 | US6991036 Thermal processing of a relatively permeable formation |
| 01/31/2006 | CA2354567C Method for correcting positioning errors in rock drilling, and a rock drilling equipment |
| 01/31/2006 | CA2348554C A method for predicting the directional tendency of a drilling assembly in real-time |
| 01/26/2006 | US20060016625 Hydraulic drilling machine for working in a small space |
| 01/26/2006 | US20060016603 Casing reaming assembly |
| 01/26/2006 | DE10206645B4 Vorrichtung zum Einlegen und Entnehmen von Bohrgestängen in und aus Horizontalbohranlagen Apparatus for inserting and removing drill rods in and out of horizontal directional drilling |
| 01/26/2006 | DE102004032551A1 Tunnelling machine for installation of sub-surface pipe has cutter head with three rotating sections |
| 01/25/2006 | EP1619352A1 Method and system for accessing subterranean deposits from the surface |
| 01/25/2006 | EP1618283A1 Well string assembly |
| 01/25/2006 | EP1618279A1 Method of creating a borehole in an earth formation |
| 01/25/2006 | EP1399639B1 Sonic drill head |
| 01/25/2006 | EP1248893B1 Integrated transmitter surveying while boring (swb) entrenching powering device for the continuation of a guided bore hole |
| 01/24/2006 | US6988568 Simultaneously operation to fill, store and dispense its contents; separate the liquid and solid particles; continuous process without stoping; separator is chosen from screen, filter, vibrator, hydrocyclone, centrifuges |
| 01/24/2006 | US6988567 Drilled cuttings movement systems and methods |
| 01/24/2006 | US6988553 Horizontal spool tree wellhead system and method |
| 01/24/2006 | CA2148117C A biodegradable wellbore fluid comprising n-alkanes |
| 01/19/2006 | WO2006005916A2 Closed loop control bore hole drilling system |
| 01/19/2006 | US20060012490 Controlling an underground object |
| 01/19/2006 | US20060011387 Method for releasing stuck drill string |
| 01/19/2006 | US20060011386 Impact excavation system and method with improved nozzle |
| 01/19/2006 | US20060011385 Apparatus and system for well placement and reservoir characterization |
| 01/19/2006 | US20060011348 Drilling and producing deep water subsea wells |
| 01/18/2006 | EP1617038A1 A rock drilling equipment |
| 01/18/2006 | EP1616076A2 Expanded liner system and method |
| 01/18/2006 | EP1616072A1 A rock drill bit assembly |
| 01/18/2006 | EP1616071A2 Drill bit |
| 01/18/2006 | EP1297240B1 A method for drilling with casing |
| 01/18/2006 | EP1210497B1 Bit connector |
| 01/18/2006 | EP0948700B1 Whipstock |
| 01/18/2006 | CN1723335A Method to install underground pipe casing |
| 01/17/2006 | US6986388 Method and system for accessing a subterranean zone from a limited surface area |
| 01/17/2006 | CA2098272C Device, system and method for drilling and completing a lateral well |
| 01/12/2006 | US20060006004 Method for extracting coal bed methane with source fluid injection |
| 01/12/2006 | US20060006000 Borehole drilling control system, method and apparatus |
| 01/12/2006 | US20060005999 Methods and apparatus for drilling with a multiphase pump |
| 01/11/2006 | EP1614852A1 Hole opener |
| 01/11/2006 | EP1613838A1 Drill hole measuring device and rock drilling unit |
| 01/11/2006 | EP1430200B1 Wellbore system for simultaneous drilling and production |
| 01/11/2006 | EP0865561B1 Reaming apparatus with enhanced stability and transition from pilot hole to enlarged bore diameter |
| 01/11/2006 | CN1720386A Method and system for circulating fluid in a well system |
| 01/11/2006 | CN1236195C Hydraulic drill bit capable of remote controlling drilling, slotting and deflection correction and working method thereof |
| 01/10/2006 | CA2278933C Tool and method for drilling a lateral well |
| 01/10/2006 | CA2247332C Downhole core sampling and testing apparatus |
| 01/05/2006 | US20060000644 Drill head steering |
| 01/05/2006 | US20060000619 Method and apparatus for drilling and servicing subterranean wells with rotating coiled tubing |
| 01/05/2006 | DE19814033B4 Bohrgestängeführung und Bohrgerät mit Bohrgestängeführung Bohrgestängeführung and drill with Bohrgestängeführung |
| 01/05/2006 | CA2560331A1 Method of developing and producing deep geothermal reservoirs |
| 01/04/2006 | EP1611311A1 System and method for treating drilling mud in oil and gas well drilling applications |
| 01/04/2006 | EP1546510A4 Drilling rig having a compact compressor/pump assembly |
| 01/04/2006 | EP1438483B1 System for lining a section of a wellbore |
| 01/04/2006 | EP1436483B1 Multi-functional drilling vehicle |
| 01/04/2006 | EP1412605A4 Improved stabilizer for use in a drill string |
| 01/04/2006 | EP1129272B1 Method and apparatus for remote control of a tubing exit sleeve |
| 01/04/2006 | CN2750041Y Electric coal winning machine |
| 01/04/2006 | CN1717528A Well reamer |
| 01/03/2006 | US6981855 Drilling rig having a compact compressor/pump assembly |
| 01/03/2006 | US6981559 Rock-bolting apparatus and method |
| 01/03/2006 | US6981548 heating and pyrolysis of heavy hydrocarbon sections in subterranean wells to produce light hydrocarbons; reduced viscosity improves movement; fluid removal in liquid and/or vapor phase |
| 01/03/2006 | CA2406663C Apparatus and methods for forming a lateral wellbore |
| 12/29/2005 | WO2005124094A1 Enlarging and stabilising tool for a borehole |
| 12/29/2005 | WO2005124092A1 Pipe tension measuring device |
| 12/29/2005 | WO2005124091A1 One trip well apparatus with sand control |
| 12/29/2005 | WO2005124090A2 Steerable drill bit arrangement |
| 12/29/2005 | US20050284664 Dual wall drill string assembly |
| 12/29/2005 | US20050284662 Communication adapter for use with a drilling component |
| 12/29/2005 | US20050284633 One trip well apparatus with sand control |
| 12/29/2005 | US20050284624 Apparatus for inducing vibration in a drill string |
| 12/29/2005 | CA2570538A1 Steerable drill bit arrangement |
| 12/28/2005 | EP1609944A2 Steerable drilling system and method |
| 12/28/2005 | EP1608840A1 Directional reaming system |
| 12/28/2005 | EP1311740B1 Method and device for assembling, particularly for lengthening, a pipe or system of rods |
| 12/28/2005 | CN1714223A Drill head steering |
| 12/28/2005 | CN1712666A Spinning drilling tool for sinking pipe |
| 12/27/2005 | US6980123 Controlling an underground object |
| 12/27/2005 | US6978850 Smart clutch |
| 12/27/2005 | US6978849 Hole-boring method and system for making cast-in-situ piles |
| 12/24/2005 | CA2510532A1 Apparatus for inducing vibration in a drill string |
| 12/22/2005 | WO2005121494A1 Device for a rock drilling machine |
| 12/22/2005 | WO2005120149A2 Adjustable bent housing |
| 12/22/2005 | US20050279531 Lateral boring system |
| 12/21/2005 | EP1607571A2 Steerable modular drilling assembly |
| 12/21/2005 | EP1295011B1 Apparatus and method to complete a multilateral junction |
| 12/20/2005 | US6976539 Tubing anchor |
| 12/20/2005 | US6976533 Method and system for accessing subterranean deposits from the surface |
| 12/20/2005 | CA2385757C Method and apparatus for multilateral well entry |
| 12/20/2005 | CA2265045C Torque resistant retrievable whipstock |
| 12/20/2005 | CA2170756C Arrangement for mounting slides |
| 12/20/2005 | CA2142114C Multi-lateral selective re-entry tool |
| 12/15/2005 | US20050278123 Automated bore planning system for horizontal directional drilling |
| 12/15/2005 | US20050274548 System for directional boring including a drilling head with overrunning clutch and method of boring |
| 12/15/2005 | US20050274547 Drilling systems and methods utilizing independently deployable multiple tubular strings |
| 12/15/2005 | US20050274546 Reaming and stabilization tool and method for its use in a borehole |