| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 07/14/2009 | CA2468189C Tubing connector |
| 07/14/2009 | CA2382974C Accelerometer caliper while drilling |
| 07/09/2009 | WO2009085753A2 Steerable drilling system |
| 07/09/2009 | WO2009083644A1 Method and equipment for small-charge blasting |
| 07/09/2009 | WO2009083642A1 Method and apparatus for small-charge blasting |
| 07/09/2009 | WO2009058508A3 Drilling assemblies and methods of drilling |
| 07/09/2009 | WO2006007242A3 Side entry apparatus and method |
| 07/09/2009 | US20090173545 Air filtration for rock drilling |
| 07/09/2009 | US20090173544 Method and apparatus for lateral well drilling utilizing an abrasive fluid stream discharged from a rotating nozzle |
| 07/09/2009 | US20090173543 Slim-hole parasite string |
| 07/09/2009 | US20090173542 Vibratory unit for drilling systems |
| 07/09/2009 | US20090173541 Rotary steerable tool |
| 07/09/2009 | US20090173540 Anti-stall tool for downhole drilling assemblies |
| 07/09/2009 | US20090173539 Spring-operated anti-stall tool |
| 07/09/2009 | CA2710621A1 Borehole imaging and orientation of downhole tools |
| 07/09/2009 | CA2710222A1 Steerable drilling system |
| 07/09/2009 | CA2707341A1 Method and apparatus for small-charge blasting |
| 07/09/2009 | CA2707053A1 Method and equipment for small-charge blasting |
| 07/08/2009 | EP2077355A1 Bagger, der in Containern transportiert werden kann |
| 07/08/2009 | EP2076652A1 Arrangement for foundation |
| 07/08/2009 | EP1792052A4 Integrated magnetic ranging tool |
| 07/08/2009 | CN201269047Y Coal hole milling machine |
| 07/08/2009 | CN201269046Y Module drilling system |
| 07/08/2009 | CN101476444A Horizontal radiation pipe construction equipment for vibration-impact type radiation well |
| 07/08/2009 | CN100510315C Method and system for enhanced access to subterranean zone |
| 07/08/2009 | CN100510309C Bit assembly for a hammering drill |
| 07/07/2009 | US7556105 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 07/07/2009 | CA2602356C Positioning and conveying well apparatus and method |
| 07/07/2009 | CA2553470C Apparatus for slant drilling |
| 07/07/2009 | CA2537434C Spring mechanism for downhole steering tool blades |
| 07/07/2009 | CA2458376C Multi-functional drilling vehicle |
| 07/07/2009 | CA2411701C Downhole window finder and method of using the same |
| 07/02/2009 | WO2009082453A2 Pulse rate of penetration enhancement device and method |
| 07/02/2009 | WO2009082234A1 Method and system for circulating fluid in a subsea intervention stack |
| 07/02/2009 | WO2009055380A3 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production |
| 07/02/2009 | US20090166089 Drilling Tool Steering Device |
| 07/02/2009 | US20090166086 Closed-Loop Control of Rotary Steerable Blades |
| 07/02/2009 | US20090166046 System and Method for Dynamic Sealing Of a Drill String |
| 07/02/2009 | DE102004036425C5 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 |
| 07/02/2009 | CA2710281A1 Pulse rate of penetration enhancement device and method |
| 07/01/2009 | EP2074275A2 Dual subsea production chokes for high pressure well production |
| 07/01/2009 | CN201265361Y Grouting unfreezing apparatus for casing tube |
| 07/01/2009 | CN201265360Y High-pressure continuous fluid flow jet drilling tool |
| 07/01/2009 | CN201265359Y Fixing rack for ocean well drilling water-resistant pipe |
| 07/01/2009 | CN201265358Y Anti-slanting drilling tool of combined hydraulic thrust device |
| 07/01/2009 | CN201265357Y Special-direction double-bending anti-slanting apparatus |
| 07/01/2009 | CN101473102A Device for steering drilling tools |
| 07/01/2009 | CN101469601A Automatic relief arrangement |
| 07/01/2009 | CN100507200C Up-hole controllable guide tool |
| 06/30/2009 | US7552778 Seal cup for a wellbore tool and method |
| 06/30/2009 | CA2584691C Inductive coupling system |
| 06/30/2009 | CA2380219C Lockable motor assembly for use in a well bore |
| 06/25/2009 | WO2009079575A2 Optimizing drilling performance using a selected drilling fluid |
| 06/25/2009 | WO2009077656A1 Rock drilling rig and method for drilling |
| 06/25/2009 | US20090159339 Adjustable bent housing apparatus and method |
| 06/25/2009 | US20090159336 Integrated Quill Position and Toolface Orientation Display |
| 06/25/2009 | US20090159281 Running bore-lining tubulars |
| 06/25/2009 | DE102008038964A1 Bewegbare Geräteeinheit zum Erzeugen einer Durchörterung in Böden und Auffüllungen Movable equipment unit for generating a drilling through soils and fills |
| 06/25/2009 | CA2702730A1 Stimulation through fracturing while drilling |
| 06/24/2009 | CN201262041Y Horizontal swiveling mechanism of crawler drill |
| 06/24/2009 | CN101463709A Torsional impact drilling tool |
| 06/24/2009 | CN101463708A Annular hydraulic jet drilling bit and anchor bar hole hydraulic jet construction method for bad ground |
| 06/24/2009 | CN101463707A Design method of rotation guiding drilling tool in drilling state |
| 06/23/2009 | CA2589332C Method and system for accessing subterranean deposits from the surface |
| 06/23/2009 | CA2541478C Dynamically balanced cutting tool system |
| 06/23/2009 | CA2481800C A one trip drilling and casing cementing method |
| 06/23/2009 | CA2450840C Method of and apparatus for casing a borehole |
| 06/18/2009 | WO2009074643A2 Method of creating a wellbore system |
| 06/18/2009 | WO2009074636A2 Method of expanding a tubular element in a wellbore |
| 06/18/2009 | WO2009074632A2 Wellbore system |
| 06/18/2009 | WO2009074573A1 System for drilling a wellbore |
| 06/18/2009 | WO2009074526A1 System for drilling a wellbore |
| 06/18/2009 | US20090152011 Downhole Drive Shaft Connection |
| 06/18/2009 | US20090152010 Microtunnelling system and apparatus |
| 06/18/2009 | US20090152008 Microtunnelling system and apparatus |
| 06/18/2009 | US20090152007 Optimizing drilling performance using a selected drilling fluid |
| 06/18/2009 | US20090152005 Oilfield well planning and operation |
| 06/18/2009 | US20090151956 Grease injection system for riserless light well intervention |
| 06/18/2009 | US20090151950 Active integrated well completion method and system |
| 06/18/2009 | US20090151943 Aqueous-based emulsified consolidating agents suitable for use in drill-in applications |
| 06/18/2009 | US20090151934 Top drive system |
| 06/18/2009 | DE102007060410A1 Horizontal drilling device has drill head which contains base body and displaced bolt, where bolt is displaced from retracted position to another position in which bolt projects out of base body in bore direction |
| 06/18/2009 | DE102007060409A1 Horizontal earth drilling device, has drilling head, and linear drive for drilling head, where drilling head exhibits heating element that heats earth surrounding head and arranged between drilling head front part and drilling cap collar |
| 06/18/2009 | CA2708096A1 Method and system for delineating a second wellbore from a first wellbore |
| 06/18/2009 | CA2706279A1 Method of expanding a tubular element in a wellbore |
| 06/18/2009 | CA2705237A1 Wellbore system |
| 06/18/2009 | CA2704662A1 System for drilling a wellbore |
| 06/17/2009 | EP2071085A2 Manual leveling control system and method for construction equipment |
| 06/17/2009 | CN201258687Y Complete hydraulic tunnel drilling rig moving platform |
| 06/17/2009 | CN201258686Y Narrow roofboltier device |
| 06/17/2009 | CN201258685Y Machine-carried multi-arm digging drill |
| 06/17/2009 | CN201258684Y Wheeled rail land mobile drill |
| 06/17/2009 | CN101457635A Design method for rotating guide drilling tool |
| 06/16/2009 | US7546886 Method of creating a borehole in an earth formation |
| 06/16/2009 | US7546884 Method and apparatus and program storage device adapted for automatic drill string design based on wellbore geometry and trajectory requirements |
| 06/16/2009 | US7546880 Extracting gas hydrates from marine sediments |
| 06/11/2009 | WO2009055381A3 Apparatus and method for conveyance and control of a high pressure hose in jet drilling operations |
| 06/11/2009 | US20090145666 Expandable stabilizer with roller reamer elements |
| 06/11/2009 | US20090145665 Method and apparatus for selective soil fracturing, soil excavation or soil treatment using supersonic pneumatic nozzle with integral fluidized material injector |
| 06/11/2009 | US20090145663 Drill Bit Having Enhanced Stabilization Features |