| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 08/19/2010 | US20100206581 Shearing tool and methods of use |
| 08/19/2010 | DE19983531B4 Ummantelung zur Geräuschdämpfung bei einer Gesteinsbohrausrüstung Jacket for noise attenuation at a rock drilling |
| 08/19/2010 | DE102008053239B3 Device for forming process-controlled horizontal filter well utilized e.g. for ground water drainage in brown coal open mining, has post-cutting head with borehole conduit connected with borehole outlet and chipped pipe by swing bearing |
| 08/19/2010 | CA2749692A1 Offset stochastic control |
| 08/18/2010 | EP1354124B1 Method and system for enhanced access to a subterranean zone |
| 08/18/2010 | CN201557049U Novel PLC power supply of electro-hydraulic workover rig |
| 08/18/2010 | CN201554372U Lower drilling tool combination for flexible combination drill |
| 08/18/2010 | CN201554371U Horizontal well completion pipe string |
| 08/18/2010 | CN201554370U Four-in-one drilling tool structure with three centering devices |
| 08/18/2010 | CN201554369U Fast-transported petroleum drilling rig capable of transporting large module integrally and automatically traveling |
| 08/18/2010 | CN201554368U Movable maintenance station for oil drilling tools |
| 08/18/2010 | CN201554365U Multifunctional dual-purpose machine for well-drilling and piling |
| 08/18/2010 | CN201554005U Large-flow and high-speed jet sealing drilling and pouring orifice safety control device under high pressure water |
| 08/18/2010 | CN1777736B Well string assembly |
| 08/18/2010 | CN101806149A Inner convex fixing bolt construction method, convex drill and deformed gasket |
| 08/18/2010 | CN101804946A Vehicle, in particular construction vehicle |
| 08/18/2010 | CN101250977B Drilling unit head of deep sea drill core sampling drilling machine |
| 08/17/2010 | US7775304 Apparatus and method for driving casing or conductor pipe |
| 08/17/2010 | US7775303 Device for a drilling tool |
| 08/17/2010 | US7775301 Advanced steering tool system, method and apparatus |
| 08/17/2010 | US7775300 Earth drilling device |
| 08/17/2010 | US7775298 Drilling assemblies and methods of drilling |
| 08/17/2010 | CA2443535C Lost and found system and method with optional product warranty registration |
| 08/17/2010 | CA2426076C Coupling apparatus |
| 08/17/2010 | CA2387881C Method and apparatus for operations in underground subsea oil and gas wells |
| 08/12/2010 | WO2010090609A1 Equipment for realization of deep boreholes and method of realization of deep boreholes |
| 08/12/2010 | WO2010059536A3 Modifying expansion forces by adding compression |
| 08/12/2010 | WO2010059535A3 Enhanced jack for drawing a mandrel |
| 08/12/2010 | WO2010042720A3 Methods and apparatus for thermal drilling |
| 08/12/2010 | US20100200302 Digging tool, digging bit, and device |
| 08/12/2010 | US20100200298 Downhole tool |
| 08/12/2010 | US20100200297 Drilling machine with carousel-type drill stem and shroud tube loader |
| 08/12/2010 | US20100200295 Downhole Apparatus with a Wireless Data Communication Device Between Rotating and Non-Rotating Members |
| 08/12/2010 | US20100200242 Method and apparatus for centrifugal separation |
| 08/11/2010 | CN201546629U Mast device and rotary excavating drilling machine comprising same |
| 08/11/2010 | CN201546628U Novel trailing drilling table |
| 08/11/2010 | CN201546619U Composite test rig |
| 08/11/2010 | CN201546613U Long spiral drilling machine |
| 08/11/2010 | CN101802343A Vertical direction adjustment tool for downhole drilling apparatus |
| 08/10/2010 | US7770669 Auger and hole stabilization combination system |
| 08/10/2010 | US7770668 Modular rotary drill head |
| 08/10/2010 | US7770662 Ballistic systems having an impedance barrier |
| 08/10/2010 | US7770655 Conductor casing installation by anchor handling/tug/supply vessel |
| 08/10/2010 | CA2612219C Arrangement for positioning drilling unit |
| 08/05/2010 | WO2010088231A2 Expandable stabilizer with roller reamer elements |
| 08/05/2010 | WO2010088228A2 Adjustable downhole motors and methods for use |
| 08/05/2010 | WO2010086634A2 Apparatus and method for setting a tool in a borehole |
| 08/05/2010 | WO2010042723A3 Methods and apparatus for thermal drilling |
| 08/05/2010 | US20100193248 Methods, systems, and tool assemblies for distributing weight between an earth-boring rotary drill bit and a reamer device |
| 08/05/2010 | US20100193244 Drilling Fluid Additive for Reducing Lost Circulation in a Drilling Operation |
| 08/05/2010 | DE202010006129U1 Vorrichtung zum Einbringen einer stehenden Rohranordnung in das Erdreich Means for introducing a stationary tube assembly into the soil |
| 08/05/2010 | CA2750159A1 Expandable stabilizer with roller reamer elements |
| 08/05/2010 | CA2749901A1 Apparatus and method for setting a tool in a borehole |
| 08/04/2010 | CN201539550U Chain box observation hole sealing mechanism |
| 08/04/2010 | CN201539212U Novel drilling machine |
| 08/04/2010 | CN201539211U Double-rig drilling system |
| 08/04/2010 | CN101796260A Apparatus and method of loading a rod box for a horizontal directional drill |
| 08/04/2010 | CN101793157A Method for supporting filling body |
| 08/04/2010 | CN101793133A Orientation method of sealing tool of multilateral well window |
| 08/04/2010 | CN101793125A Horizontal directional drilling pipeline rock strata crossing composite reaming construction method |
| 08/04/2010 | CN101793124A Bit drilling engineering method |
| 08/04/2010 | CN101793123A Drilling machine three-sliding system of multifunctional self-elevating supporting platform for ocean oil field |
| 08/03/2010 | US7766099 using the drilling composition to drill a portion of the well bore, the consolidating material penetrating into the walls of the well bore, and consolidating a portion of the formation particulates;.crosslinking polymers bonding only at the points of contact between particles and not sealing across |
| 08/03/2010 | US7766098 Directional drilling control using modulated bit rotation |
| 08/03/2010 | US7765749 Fast moving drilling rig |
| 08/03/2010 | CA2485658C Method and apparatus for moving a mass |
| 08/03/2010 | CA2485471C Method and probe for measuring hydraulic conductivity of soil |
| 08/03/2010 | CA2427090C Device for transporting particles of magnetic material |
| 07/29/2010 | WO2010037518A8 Method and device for fusion drilling |
| 07/29/2010 | US20100187012 Method and Apparatus for Laterally Drilling Through a Subterranean Formation |
| 07/29/2010 | US20100187010 Process and apparatus for subterranean drilling |
| 07/29/2010 | US20100187009 Adjustable downhole motors and methods for use |
| 07/29/2010 | US20100186965 Method for installing an off-shore structure |
| 07/29/2010 | US20100186944 Accessible Downhole Power Assembly |
| 07/29/2010 | DE102004033706B4 Vorrichtung zum Niederbringen von Gründungsbohrungen Apparatus for the sinking of foundation drilling |
| 07/28/2010 | CN201535140U 一种机锁式钻杆及包括该钻杆的工程机械 A mechanism locks the drill pipe and drill pipe, including construction machinery |
| 07/28/2010 | CN201535137U Expanding drill for well drilling |
| 07/28/2010 | CN201534974U High-pressure jet and mixing foundation seepage-proofing reinforcing equipment with multiple drill bits |
| 07/28/2010 | CN1982545B Arch press for pile formation apparatus with branched and/or bearing disc |
| 07/28/2010 | CN101790620A Drill in sand control liner |
| 07/28/2010 | CN101787856A Reentry method of later-operation pipe column of multi-branch well |
| 07/28/2010 | CN101787855A Reentry device of later-operation pipe column of multi-branch well |
| 07/28/2010 | CN101787854A Subsection well completion system of bottom water reservoir horizontal well |
| 07/27/2010 | US7762356 Rotary steerable motor system for underground drilling |
| 07/27/2010 | US7762353 Downhole valve mechanism |
| 07/27/2010 | US7762337 Riser pipe with auxiliary lines mounted on journals |
| 07/22/2010 | WO2010083261A2 Directional drilling control devices and methods |
| 07/22/2010 | WO2009062719A3 Gas cutting borehole drilling apparatus |
| 07/22/2010 | US20100181113 Horizontal waterjet drilling method |
| 07/22/2010 | US20100181112 Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies |
| 07/22/2010 | US20100181111 Downhole Vibration Dampener |
| 07/22/2010 | US20100181110 Green directional drilling fluid composition |
| 07/22/2010 | DE102009005514A1 Vorrichtung für eine Rohrtour eines geologischen Bohrlochs, Rohrtour, Verfahren zum Betreiben einer geologischen Bohranlage sowie Verfahren zum Herstellen einer Rohrtour für ein geologisches Bohrloch Device for a pipe string of a geological borehole casing string, method of operating a geological drilling rig and method for manufacturing a pipe string for a geological borehole |
| 07/22/2010 | CA2749275A1 Directional drilling control devices and methods |
| 07/21/2010 | CN201531254U Second open hole horizontal well sand prevention well cementation tubular column adopting interpolation method |
| 07/21/2010 | CN201531215U Main actuating device of rotary drill rig |
| 07/21/2010 | CN101784746A Stochastic bit noise control |
| 07/21/2010 | CN101784745A Motor bit system |
| 07/21/2010 | CN101781972A Crawler-type lifting top and slope bolt and anchor construction drill |
| 07/21/2010 | CN101781971A Automatic mast angle adjustment device for core-drilling machine |