| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 12/23/2009 | WO2009126429A3 Kinetic energy harvesting in a drill string |
| 12/23/2009 | WO2009101477A3 Steerable system |
| 12/23/2009 | CN201367853Y Drilling device |
| 12/23/2009 | CN201367824Y Hydraulic hinge type high pressure resistant watertight door |
| 12/23/2009 | CN100572748C Method and system for circulating fluid in a well system |
| 12/23/2009 | CN100572676C Large area sawed joint cutting construction method of concrete gravity dam cross joint |
| 12/22/2009 | CA2554147C Rotary vector gear for use in rotary steerable tools |
| 12/17/2009 | WO2009151835A1 Magnetic ranging and controlled earth borehole drilling |
| 12/17/2009 | WO2009150294A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 12/17/2009 | WO2009106863A4 A method for facilitating construction of a driling rig |
| 12/17/2009 | US20090308660 Auxiliary equipment for use with drilling apparatus |
| 12/17/2009 | US20090308659 Steering component, steering assembly and method of steering a drill bit in a borehole |
| 12/17/2009 | US20090308658 Latch system for friction-locked tubular members |
| 12/17/2009 | US20090308616 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell |
| 12/17/2009 | DE102009021389A1 Vorrichtung und Verfahren zum Zerteilen von Rohren in der Nähe von Versorgungsleitungen Apparatus and method for cutting pipes in the vicinity of supply conduits |
| 12/17/2009 | CA2727616A1 Magnetic ranging and controlled earth borehole drilling |
| 12/17/2009 | CA2726930A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 12/17/2009 | CA2666806A1 Steering component, steering assembly and method of steering a drill bit in a borehole |
| 12/16/2009 | EP2133508A1 Construction device with extendable mast and method for operation of same |
| 12/16/2009 | EP2133507A1 Drilling device and drilling method |
| 12/16/2009 | EP2132399A1 System, method, and apparatus for passive and active updrill features on roller cone drill bits |
| 12/16/2009 | EP2132398A1 Drilling device for drilling and reaming of a hole |
| 12/16/2009 | EP2132397A1 Noise-dampening shield structure for rock drilling apparatus |
| 12/16/2009 | EP2132396A1 Sound dampening housing for rock drill |
| 12/16/2009 | CN201363097Y Double-drill rod transmission device and double-rod anti-outburst drill |
| 12/16/2009 | CN201363088Y Land oil drilling machine capable of horizontal adjustment and bodily movement |
| 12/16/2009 | CN201363087Y Gassy outburst mine coal-road tunneling outburst-proof drill loader with dual drilling machine and dual pump station |
| 12/16/2009 | CN201363086Y Auger drill of rotary drilling rig |
| 12/16/2009 | CN101603411A Drilling rig and drilling method |
| 12/16/2009 | CN101603410A Full hydraulic umbrella drill for shaft construction |
| 12/16/2009 | CN101603309A Occlusive pile of long spiral stirring water-stop curtain and construction process thereof |
| 12/16/2009 | CN100570073C Bottom expanding equipment of pipe sank prefabricated steel concrete bottom expansion pile |
| 12/15/2009 | US7631708 Method and apparatus for horizontal drilling and oil recovery |
| 12/15/2009 | US7631707 Shape memory alloy actuated steerable drilling tool |
| 12/15/2009 | US7631706 Methods, systems and apparatus for production of hydrocarbons from a subterranean formation |
| 12/15/2009 | CA2501736C Continuous wellbore drilling system with stationary sensor measurements |
| 12/15/2009 | CA2405533C Flexible hose with thrusters for horizontal well drilling |
| 12/10/2009 | WO2009148943A1 Offshore drilling and production systems and methods |
| 12/10/2009 | WO2009148921A1 Mechanism for providing controllable angular orientation while transmitting torsional load |
| 12/10/2009 | WO2009148327A1 Separation of drill cuttings from drilling fluid on a seabed |
| 12/10/2009 | WO2009148323A1 Rock drilling machine |
| 12/10/2009 | WO2009148322A1 Rock drilling device |
| 12/10/2009 | WO2009146895A2 Drill head |
| 12/10/2009 | WO2009129386A3 Steering device for downhole tools |
| 12/10/2009 | WO2009111544A3 Slip hanger assembly and actuator |
| 12/10/2009 | US20090301783 Microtunnelling system and apparatus |
| 12/10/2009 | US20090301779 Earth boring device |
| 12/10/2009 | US20090301706 Non-Metallic Whipstock |
| 12/10/2009 | DE102008027105A1 Horizontal drilling machine controlling system for use during laying of pipelines, has controlling unit calculating distance of drilling head relative to path and changing drilling direction of head in direction of path |
| 12/10/2009 | CA2726445A1 Separation of drill cuttings from drilling fluid on a seabed |
| 12/09/2009 | EP2129859A1 Distance holder with helical slot |
| 12/09/2009 | CN201358805Y Working device of drilling jumbo |
| 12/09/2009 | CN201358714Y Spiral drilling machine of formed concrete pile |
| 12/09/2009 | CN201358713Y Special rotating device of drilling jumbo |
| 12/09/2009 | CN201358712Y Trestle type pneumatic bottom hole drilling machine |
| 12/09/2009 | CN201358711Y Drilling rig with measurement while drilling function |
| 12/09/2009 | CN101600847A Dual-direction ram-type blowout preventer seal |
| 12/09/2009 | CN101598003A Hydraulic gait-mode heavy caliber Longmen stake machine |
| 12/09/2009 | CN101598002A Door frame type drilling machine |
| 12/09/2009 | CN101597563A Waste landfill gas collection and generation equipment and method for constructing gas collection well |
| 12/09/2009 | CN100567698C Tunnel advanced support air circulated drilling construction method and drilling tool |
| 12/09/2009 | CN100567695C Ultra-short radius radial horizontal well drilling and completion tool and technique thereof |
| 12/08/2009 | US7628224 Shallow/intermediate water multipurpose floating platform for arctic environments |
| 12/08/2009 | CA2587163C Sidetrack option for monobore casing string |
| 12/08/2009 | CA2527938C Tieback positioning and placement tool |
| 12/03/2009 | WO2009146190A1 Apparatus and method for drilling a borehole |
| 12/03/2009 | WO2009111735A3 Shaker deck adjustment apparatus |
| 12/03/2009 | WO2009101476A3 Directional drilling system |
| 12/03/2009 | US20090296522 Method and system for delineating a second wellbore from a first wellbore |
| 12/03/2009 | US20090294179 Method of controlling fluid loss and materials useful therein |
| 12/03/2009 | US20090294178 Stabilizer and reamer system having extensible blades and bearing pads and method of using same |
| 12/03/2009 | US20090294176 Hollow Charge Liners Made of Powder Metal Mixtures |
| 12/02/2009 | EP2126271A1 Improved shoe for wellbore lining tubing |
| 12/02/2009 | EP2126226A1 Apparatus for driving elongated elements into the ground |
| 12/02/2009 | CN201354590Y Marine riser device for ocean deepwater drilling |
| 12/02/2009 | CN201354589Y Excavation-free directional drilling device for tap water |
| 12/02/2009 | CN201354588Y Pneumatic tracked hydraulic jumbo |
| 12/02/2009 | CN201354585Y Drill pipe automatic setting upright post driving device |
| 12/02/2009 | CN101595272A Microtunnelling system and apparatus |
| 12/02/2009 | CN101592925A Method for controlling reasonable driving depth of offshore drilling method lower riser |
| 12/02/2009 | CN101592030A Method for controlling reasonable driving depth of offshore cluster well group risers |
| 12/01/2009 | US7624820 Method for drilling with casing |
| 12/01/2009 | US7624819 Universal joint assembly |
| 12/01/2009 | US7624817 Bore hole reaming apparatus and method |
| 12/01/2009 | CA2578828C Torque transmitting coupling |
| 11/26/2009 | WO2009142914A1 Casing exit joint with easily milled, low density barrier |
| 11/26/2009 | WO2009142836A2 System and method for improving operational characteristics of devices used in a well |
| 11/26/2009 | WO2009142666A1 Pneumatic drifter with replaceable foot pieces |
| 11/26/2009 | US20090288885 Adjustable angle drive connection for a downhole drilling motor |
| 11/26/2009 | US20090288884 Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores |
| 11/26/2009 | US20090288883 Swivel for use in installing large diameter casing |
| 11/26/2009 | US20090288882 Hydraulic head clamp assembly for mobile drill rig |
| 11/26/2009 | US20090288881 Methods and apparatus to form a well |
| 11/26/2009 | CA2724581A1 Casing exit joint with easily milled, low density barrier |
| 11/26/2009 | CA2632634A1 Adjustable angle drive connection for a down hole drilling motor |
| 11/25/2009 | EP2122108A1 Arrangement and method for drilling |
| 11/25/2009 | EP2122107A1 Distance holder with jet deflector |
| 11/25/2009 | CN201351455Y Damping whipstock |
| 11/25/2009 | CN201351454Y Antivibration whipstock for branch well of lateral bored well |
| 11/25/2009 | CN101589204A Expandable reamers for earth-boring applications and methods of using the same |