| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 02/06/2008 | EP1884619A1 Machine for drilling |
| 02/06/2008 | CN201016275Y Inclined surface rock drill |
| 02/06/2008 | CN201016274Y Automatic ballast-disparting rotary drill |
| 02/06/2008 | CN101120155A Integrated magnetic ranging tool |
| 02/06/2008 | CN101117884A Boring tool drag reduction device |
| 02/05/2008 | US7325630 Hole opener |
| 02/05/2008 | US7325628 Anchor for vehicle, vehicle and anchor in combination, and method of using the anchor |
| 01/31/2008 | WO2008013458A1 A method and a device for directional control of a rock drilling machine |
| 01/31/2008 | WO2008011982A1 Device for connecting a section of a pipe run to a pulling element |
| 01/31/2008 | US20080023229 Tri stable actuator apparatus and method |
| 01/30/2008 | EP1882810A1 Drill hole measuring device and rock drilling unit |
| 01/30/2008 | CN201013261Y Back frame type hydraulic energy-accumulation workover rig |
| 01/30/2008 | CN201013260Y Drilling shoe |
| 01/30/2008 | CN201013241Y Horizontal drill universal pulling head device |
| 01/30/2008 | CN201013240Y Anchor bar drill stepping mechanism |
| 01/30/2008 | CN201013239Y Drill mobile guide rail |
| 01/30/2008 | CN201013238Y Wheeled vehicle rotary-digging drill |
| 01/30/2008 | CN201013237Y Portable hilly land drilling rig |
| 01/30/2008 | CN201013236Y Rock drilling crawler |
| 01/30/2008 | CN201013235Y Multifunctional rock drill |
| 01/30/2008 | CN201013234Y Structure of drilling punching machine |
| 01/30/2008 | CN201013231Y Rat-hole drilling driving device for petroleum well drilling |
| 01/30/2008 | CN101115905A Rotation device for a boom of a mining or constructions work rig, rig and boom |
| 01/29/2008 | US7322433 Tool for excavating an object |
| 01/29/2008 | CA2533836C Method of ensuring that well tubing was properly stretched |
| 01/29/2008 | CA2320998C Method and system for drilling and completing underbalanced multilateral wells |
| 01/29/2008 | CA2267508C Apparatus for static underground drilling |
| 01/24/2008 | WO2006132892A3 Pipes, systems, and methods for transporting fluids |
| 01/24/2008 | US20080017419 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 01/24/2008 | US20080017418 Boring System And Method Therefor |
| 01/24/2008 | US20080017417 Impact excavation system and method with suspension flow control |
| 01/23/2008 | EP1881151A1 Drilling unit |
| 01/23/2008 | CN201011299Y Auxiliary lever-switching device of horizontal orienting drilling rig |
| 01/23/2008 | CN101109269A Deepwater drilling device based on near surface deviation |
| 01/22/2008 | US7321293 Integrated magnetic ranging tool |
| 01/22/2008 | US7320373 One-step directional coring or drilling system |
| 01/22/2008 | US7320372 Jet assisted drilling method |
| 01/22/2008 | US7320371 Method and device for producing pretensioned anchorings |
| 01/22/2008 | US7320365 Methods for increasing production from a wellbore |
| 01/22/2008 | US7320363 Energized slip ring assembly |
| 01/22/2008 | CA2386930C Positioning and conveying well apparatus and method |
| 01/17/2008 | US20080011520 Nozzle assembly for horizontal drilling operations |
| 01/17/2008 | US20080011516 Method for Casing Drilling, Drilling Unit and Adapter Device |
| 01/17/2008 | CA2655200A1 Modular geosteering tool assembly |
| 01/16/2008 | EP1878868A1 Whipstock-assembly |
| 01/16/2008 | EP1689966B1 Nozzle unit and method for excavating a hole in an object |
| 01/16/2008 | CN201007185Y Compound cavern completion tool |
| 01/16/2008 | CN101107418A System and method for making hydrocarbon |
| 01/16/2008 | CN101107417A Vibration apparatus |
| 01/16/2008 | CN101105115A Waterpower pulse cavitation jet well drilling device, method and drill bit |
| 01/16/2008 | CN101105114A Vertical axis type drilling machine inclined hole boring machine |
| 01/15/2008 | US7318492 Rotary drill bit |
| 01/15/2008 | US7318490 Connection design and sonde housing assembly for a directional drill |
| 01/15/2008 | CA2521139C Methods of completing and producing a subterranean well and associated apparatus |
| 01/15/2008 | CA2462658C Through tubing whipstock |
| 01/15/2008 | CA2292214C Coiled tubing drilling rig |
| 01/11/2008 | CA2593130A1 Directional drilling control |
| 01/11/2008 | CA2584992A1 Horizontal drilling |
| 01/10/2008 | WO2008005222A2 Elongated cross coil assembly for use in borehole location determination |
| 01/10/2008 | WO2008004999A1 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 01/10/2008 | WO2008003164A1 An assembly and method for discharging fluid into a drill string of a rotary-vibratory drill |
| 01/10/2008 | US20080008534 Method of rehabilitating soil and/or underground water, and equipment for implementing the method |
| 01/10/2008 | US20080006448 Modified Cutters |
| 01/10/2008 | US20080006445 Method and apparatus for movement of drilling equipment between adjacent locations |
| 01/09/2008 | EP1875033A2 Conductor pipe string deflector and method of using same |
| 01/09/2008 | EP1875031A2 Conductor pipe string deflector and method |
| 01/09/2008 | CN201003372Y Modular drilling machine |
| 01/09/2008 | CN201003370Y Hollow driller for ground |
| 01/09/2008 | CN100360763C Telescopic feed beam for rock drill and method of measuring rock drill travel |
| 01/09/2008 | CN100360762C Directional drilling apparatus |
| 01/08/2008 | US7316280 Method for producing earth boreholes |
| 01/08/2008 | US7316277 Bottom hole assembly |
| 01/08/2008 | CA2465446C Tubing expansion |
| 01/08/2008 | CA2288494C One trip milling system |
| 01/08/2008 | CA2246184C Methods of completing and producing a subterranean well and associated apparatus |
| 01/03/2008 | WO2008003092A2 Portable and directional electrocrushing drill |
| 01/03/2008 | US20080000696 Downhole swivel joint |
| 01/03/2008 | US20080000694 Mechanical and fluid jet drilling method and apparatus |
| 01/03/2008 | US20080000693 Steerable rotary directional drilling tool for drilling boreholes |
| 01/03/2008 | US20080000692 Assembly and method for discharging fluid into a drill string of a rotary-vibratory drill |
| 01/03/2008 | US20080000686 Elongated cross coil assembly for use in borehole location determination |
| 01/03/2008 | US20080000685 Triple activity drilling ship |
| 01/03/2008 | DE102006059606A1 Reversible device for producing holes in the ground has a overload protection unit consisting of an axially sliding bushing and an annular chamber formed in a housing |
| 01/02/2008 | CN200999589Y Cast iron core type casing tube drill |
| 01/02/2008 | CN200999588Y Branch well axial pressure reentrance device |
| 01/02/2008 | CN101099025A Arrangement for sucking dust |
| 01/02/2008 | CN101099024A Methods and apparatus for drilling, completing and configuring u-tube boreholes |
| 01/01/2008 | USRE39970 Downhole adjustable bent housing for directional drilling |
| 12/27/2007 | WO2007149866A2 Active vibration control for subterranean drilling operations |
| 12/27/2007 | WO2007149041A1 A connecting device and a tool |
| 12/27/2007 | WO2006099048A3 Non-carcassed, collapse resistant, control line for use subsea and method of use |
| 12/27/2007 | US20070295537 Drilling Efficiency Through Beneficial Management of Rock Stress Levels VIA Controlled Oscillations of Subterranean Cutting Levels |
| 12/27/2007 | US20070295509 Integrated pump assembly for well completion |
| 12/27/2007 | CA2654056A1 A connecting device and a tool |
| 12/26/2007 | EP1869287A2 Rock drill and method of breaking rock |
| 12/26/2007 | EP1869281A1 Drilling- or service rig |
| 12/26/2007 | EP1619352A9 Method and system for accessing subterranean deposits from the surface |
| 12/26/2007 | EP1498576B1 Drilling device for earth drill |
| 12/26/2007 | CN101095239A High temperature memory device |
| 12/26/2007 | CN101094964A Tool for excavating an object |