| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 03/13/2008 | US20080060799 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060571 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | DE102007001636A1 Mobile drilling unit for producing drilled holes combined with geothermics and well sinking has a transporting vehicle for holding movable drilling equipment |
| 03/12/2008 | EP1896691A1 Arrangement for positioning rock drilling rig on drilling site |
| 03/12/2008 | EP1896689A2 Pipe running tool having a cement path |
| 03/12/2008 | EP1896684A1 Arrangement for positioning drilling unit |
| 03/12/2008 | EP1896683A1 Light metal feed beam for use on a drill rig |
| 03/12/2008 | CN101139912A Deepwater drilling apparatus with automatic-upending subaqueous blow-out preventer |
| 03/12/2008 | CN101139911A Gas injection pressure-stabilizing drilling method |
| 03/12/2008 | CN100374658C Stirring shaft capable of decreasing ambient foundation deformation for deep mixing pile |
| 03/11/2008 | US7341659 Rinsing liquid treatment device |
| 03/11/2008 | US7341117 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 03/11/2008 | US7341116 Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements |
| 03/11/2008 | CA2474228C Directional drilling method for a steerable rotary drilling device |
| 03/06/2008 | WO2008028075A2 Method and system for managing a drilling operation in a multicomponent particulate system |
| 03/06/2008 | WO2008026971A1 A support for a drill rig, an assembly for drilling holes and a method for drilling |
| 03/06/2008 | WO2008026011A1 A method for reaming in the construction of a well |
| 03/06/2008 | WO2007143384A3 System and method for reducing the borehole gap for downhole formation testing sensors |
| 03/06/2008 | US20080053706 Continuous monobore liquid lining system |
| 03/06/2008 | US20080053705 Steerable bit system assembly and methods |
| 03/06/2008 | US20080053702 Assembly and Method for Determining Thermal Properties of a Formation and Forming a Liner |
| 03/06/2008 | CA2661606A1 Method of storage of sequestered greenhouse gasses in deep underground reservoirs |
| 03/06/2008 | CA2659594A1 Method and system for managing a drilling operation in a multicomponent particulate system |
| 03/05/2008 | EP1895090A1 Method and apparatus for creating a borehole in the ground |
| 03/05/2008 | CN201031630Y Hydraulic telescopic type stabilizers |
| 03/05/2008 | CN201031620Y Pulse displacement vibration generators |
| 03/05/2008 | CN201031619Y Diving rotary oscillating force head |
| 03/05/2008 | CN201031618Y Three diameter-variable stabilizers |
| 03/05/2008 | CN201031617Y Rotary digging drilling machine up/down vehicle turning locking apparatus |
| 03/05/2008 | CN201031616Y vertical shaft umbrella drilling operation noise reducer |
| 03/05/2008 | CN101135233A Hole digger |
| 03/05/2008 | CN101135171A Track-mounted electric rotary drill |
| 03/05/2008 | CN100373011C Gradient pushing and enlarging device |
| 03/04/2008 | US7337859 Method and device for drilling a channel |
| 02/28/2008 | WO2008023089A1 Drilling device for drilling and reaming of a hole |
| 02/28/2008 | US20080047754 Passive vertical drilling motor stabilization |
| 02/28/2008 | US20080047753 Downhole Electric Power Generator |
| 02/28/2008 | US20080047750 Boring Tool Tracking Fundamentally Based on Drill String Length, Pitch and Roll |
| 02/28/2008 | US20080047749 Methods and apparatus for applying torque and rotation to connections |
| 02/28/2008 | CA2697238A1 Drilling device for drilling and reaming of a hole |
| 02/27/2008 | EP1583886A4 Isolated electrical connection in a drill string |
| 02/27/2008 | CN201027491Y Wire controlled hydraulic pressure vibration drilling-grubbing system |
| 02/27/2008 | CN201027490Y Vane wheel lift type floor drilling machine |
| 02/27/2008 | CN101131068A Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer |
| 02/26/2008 | US7334967 Method and arrangement by a workover riser connection |
| 02/26/2008 | US7334650 Apparatus and methods for drilling a wellbore using casing |
| 02/26/2008 | US7334649 Drilling with casing |
| 02/26/2008 | US7334637 Assembly and method for determining thermal properties of a formation and forming a liner |
| 02/26/2008 | CA2376211C Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 02/26/2008 | CA2340506C Method and system for mining hydrocarbon-containing materials |
| 02/25/2008 | CA2715688A1 Passive vertical drilling motor stabilization |
| 02/25/2008 | CA2715603A1 Passive vertical drilling motor stabilization |
| 02/21/2008 | WO2007112387A3 Method and system for forming a non-circular borehole |
| 02/21/2008 | US20080041631 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 02/21/2008 | US20080041629 Steerable bit system assembly and methods |
| 02/21/2008 | US20080041626 Magnetic ranging while drilling parallel wells |
| 02/21/2008 | US20080041583 Anchoring device for a wellbore tool |
| 02/20/2008 | EP1889997A1 Expandable Apparatus for Drift and Reaming a Borehole |
| 02/20/2008 | EP1888878A1 Method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material |
| 02/20/2008 | CN201024911Y Top drive device for bushing artesian well |
| 02/20/2008 | CN201024896Y Well fixing tool for bushing artesian well bottom |
| 02/20/2008 | CN201024895Y High-pressure gas jet driller with adjustable drilling direction |
| 02/20/2008 | CN201024894Y Drilling clamp |
| 02/20/2008 | CN201024893Y Whole pressure sealing tieback assembly for branch well |
| 02/20/2008 | CN201024892Y Pneumatic tray assisted brake well-repairing rig |
| 02/20/2008 | CN201024891Y Long spiral replaced and compacted driller |
| 02/20/2008 | CN101128643A System and method for making a hole in an object |
| 02/20/2008 | CN101126304A Waterproof casing mounting method-immersed tube drilling method |
| 02/19/2008 | USRE40067 Downhole equipment tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
| 02/19/2008 | US7331394 Autonomous well intervention system |
| 02/19/2008 | US7331387 Downhole window finder and method of using the same |
| 02/19/2008 | CA2459723C Active controlled bottomhole pressure system and method |
| 02/19/2008 | CA2391678C Milling apparatus and method for a well |
| 02/14/2008 | WO2008017846A1 Steerable rotary directional drilling tool for drilling boreholes |
| 02/14/2008 | WO2007065099A3 Roof drilling system improvements |
| 02/14/2008 | US20080035378 Method of drilling a bore hole |
| 02/14/2008 | US20080035377 Milling of cemented tubulars |
| 02/14/2008 | US20080035375 Distributed intelligence for enhanced monitoring and control of oilfield processes |
| 02/14/2008 | DE102006037110A1 Bohrgestänge und Verfahren zur Durchführung von Bohrungen in Erdreich Drill string and method for carrying out drilling in the ground |
| 02/14/2008 | CA2660452A1 Steerable rotary directional drilling tool for drilling boreholes |
| 02/13/2008 | EP1885989A1 Apparatus and method for driving casing or conductor pipe |
| 02/13/2008 | EP1644671B1 A method of constructing a geothermal heat exchanger |
| 02/13/2008 | CN101122233A Caterpillar belt self-walking type tunnel drilling rig hydraulic system |
| 02/13/2008 | CN101122232A Track-mounted full-hydraulic tunnel drilling rig |
| 02/13/2008 | CN101122211A Sailing course drill |
| 02/12/2008 | US7328757 All terrain vehicle powered mobile drill |
| 02/12/2008 | US7328742 Seal cup for a wellbore tool and method |
| 02/12/2008 | CA2363495C A method and apparatus for drilling off a floating structure |
| 02/08/2008 | CA2596174A1 Reduced-length measure while drilling apparatus using electric field short range data transmission |
| 02/07/2008 | WO2008015632A2 Technique and apparatus for drilling and completing a well in one half trip |
| 02/07/2008 | WO2008015430A1 Sensor system |
| 02/07/2008 | WO2008015402A2 Running bore-lining tubulars |
| 02/07/2008 | WO2007134255A3 Stage cementing methods used in casing while drilling |
| 02/07/2008 | US20080030366 Common interface architecture for horizontal directional drilling machines and walk-over guidance systems |
| 02/07/2008 | US20080029309 Blade Assembly Especially for an Ice Auger or Like |
| 02/07/2008 | US20080029305 Mechanical parts having increased wear resistance |
| 02/07/2008 | CA2762000A1 Downhole tool retrieval and setting system |
| 02/07/2008 | CA2659476A1 Running bore-lining tubulars |
| 02/07/2008 | CA2658756A1 Technique and apparatus for drilling and completing a well in one half trip |
| 02/07/2008 | CA2597966A1 Downhole tool retrieval and setting system |