| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 10/15/2008 | CN201133219Y Sea derrick for drilling and repairing |
| 10/15/2008 | CN201133218Y Three hinge joint triangle connecting rack mast movement linkage |
| 10/09/2008 | WO2008121071A1 Drilling device |
| 10/08/2008 | CN201129144Y Rotary digging and boring machine gin pole oil cylinder protecting equipment |
| 10/02/2008 | US20080236853 Deep-hole boring machine and deep-hole boring guide device |
| 10/01/2008 | WO2008004068A1 Triple activity drilling ship |
| 10/01/2008 | CN201125676Y Telescopic headframe placing over integral mobile transportation support frame |
| 10/01/2008 | CN201125675Y Headframe locking apparatus |
| 09/24/2008 | CN100420822C Drilling machine with supporting frame |
| 09/17/2008 | CN100419204C Method for setting up large box type steel structure permanent headframe during well drilling period |
| 09/10/2008 | EP1751393B1 Telescopic feed beam for rock drill |
| 09/10/2008 | CN101260785A Drill carriage front and back supporting structure |
| 09/04/2008 | US20080213048 Method for fabricating and transporting an integrated buoyancy system |
| 09/04/2008 | US20080210416 Guide rail system for a telescoping mast on a drilling rig |
| 09/04/2008 | DE202008007970U1 Bauarbeitsgerät mit schwenkbarem Mast Construction apparatus with movable mast |
| 08/28/2008 | WO2008103031A1 Apparatus for driving elongated elements into the ground |
| 08/28/2008 | WO2008102166A1 Rig engine control |
| 08/28/2008 | US20080202042 Drawworks and motor |
| 08/27/2008 | CN201106406Y Auxiliary making platform for artificial well site |
| 08/27/2008 | CN101250981A Construction method for accurate locating small distance air face hole-drilling |
| 08/20/2008 | CN201103342Y Shallow-stratum drilling machine |
| 08/13/2008 | CN201100096Y Hydraulic pneumatic tunnel contact net drilling trolley |
| 08/12/2008 | US7410006 Power tool anti-kickback system with rotational rate sensor |
| 08/07/2008 | US20080185984 Power Tool and Overload Protection |
| 07/30/2008 | CN101230574A Pile machine having drilling function and drilling static pressure method |
| 07/23/2008 | EP1945910A1 Drill slide for rock drilling apparatus |
| 07/23/2008 | CN201090137Y Navigation channel drilling machine |
| 07/23/2008 | CN201090132Y Drilling machine |
| 07/23/2008 | CN101225735A Trestle supporting pneumatic drilling machine |
| 07/16/2008 | CN201087702Y Balancing device of medium-length hole wagonette drill |
| 07/16/2008 | CN201087701Y Foldable derrick of exploratory drilling rig |
| 07/16/2008 | CN201087700Y Multi-joint double-lifting mast-shaped derrick |
| 07/16/2008 | CN201087699Y Two-layer worktable of derrick |
| 07/16/2008 | CN201087698Y Double-layer composite racking platform for drilling and repairing pump derrick |
| 07/16/2008 | CN201087424Y Well control pipeline foundation for well drilling |
| 07/16/2008 | CN100402793C Low tunnel rockbolt anchorage cable pneumatic drilling machine |
| 07/08/2008 | CA2410574C Pipe handling apparatus and method of landing items at a well location |
| 07/02/2008 | CN201080788Y Drill stand |
| 07/02/2008 | CN101213351A Drill slide for rock drilling apparatus |
| 06/26/2008 | US20080149395 Drilling or Service Rig |
| 06/25/2008 | EP1934403A1 Offshore platform with movable cantilever extending beyond the deck |
| 06/25/2008 | EP1856369B1 Damping device for an output shaft in a gearbox |
| 06/25/2008 | CN201078190Y Prop mechanism of crawler drill |
| 06/25/2008 | CN101208494A Arrangement for positioning drilling unit |
| 06/19/2008 | US20080142270 Housing Arrangement |
| 06/18/2008 | CN201074330Y Ground anchor running and pulling device |
| 06/12/2008 | WO2008070598A1 Extensible equipment mast |
| 06/12/2008 | US20080135303 Sensor Assembly in a Gearbox for Positioning |
| 06/11/2008 | EP1929125A1 System for tracking and maintaining an on-grade horizontal borehole |
| 06/11/2008 | CN201071684Y Sheave wheel platform connected by L shaped bolt |
| 06/11/2008 | CN201071683Y Modularized ocean workover rig base plate satisfying multiple platform operation requirement |
| 05/28/2008 | EP1925549A2 Drillship or semi-submersible and multi-activity drilling assembly |
| 05/28/2008 | EP1924756A1 Drilling rig and method for introducing one or more drilling pipes into an underbalanced well using same |
| 05/27/2008 | US7377335 Method and apparatus for movement of drilling equipment between adjacent locations |
| 05/14/2008 | CN201059162Y Hydro-cylinder lifting type folding derrick |
| 05/07/2008 | CN201056988Y Integral composite drilling tower with adjustable angle |
| 05/07/2008 | CN201056978Y Simple hydraulic drilling machine for mountain area |
| 05/06/2008 | US7367410 Method and device for liner system |
| 04/30/2008 | EP1751393A4 Telescopic feed beam for rock drill |
| 04/30/2008 | CN201053292Y Machinery power head and hydraulic control long distance feeding drilling machine |
| 04/29/2008 | CA2375778C Rock drill and mounting frame |
| 04/24/2008 | WO2008048163A1 Integrated drilling deck and bop handling |
| 04/23/2008 | EP1914379A1 Underwater seafloor drilling rig |
| 04/23/2008 | CN201050308Y Frame for driller for coal mine tunnel |
| 04/23/2008 | CN201050296Y Novel feeding device of driller |
| 04/16/2008 | CN201047250Y Pneumatic power supporting leg type accessory anchor bolt drilling machine |
| 04/10/2008 | US20080083567 Rotary steerable drilling apparatus and method |
| 04/09/2008 | EP1552103B1 Drill head steering |
| 04/09/2008 | CN101158269A Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit |
| 04/03/2008 | US20080078565 Auger stabilizer |
| 04/02/2008 | CN201043445Y Traveling crane headframe connecting mechanism of oil-well rig |
| 04/02/2008 | CN201043443Y Once-stringing continuous-lifting headframe and base seat |
| 04/01/2008 | CA2479543C Method and system for building modular structures from which oil and gas wells are drilled |
| 03/28/2008 | CA2561421A1 Auger stabilizer |
| 03/20/2008 | US20080066968 Apparatus for slant drilling |
| 03/19/2008 | EP1899570A1 Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
| 03/12/2008 | EP1896684A1 Arrangement for positioning drilling unit |
| 03/12/2008 | EP1896683A1 Light metal feed beam for use on a drill rig |
| 03/06/2008 | WO2008026971A1 A support for a drill rig, an assembly for drilling holes and a method for drilling |
| 03/06/2008 | US20080053707 System and method for reducing the borehole gap for downhole formation testing sensors |
| 03/06/2008 | CA2558988A1 Rig mat |
| 02/27/2008 | CN201027496Y Guide rail type locking positioning limiter for drilling rig |
| 02/27/2008 | CN201027495Y Drill floor base of oil-well rig |
| 02/27/2008 | CN201027490Y Vane wheel lift type floor drilling machine |
| 02/27/2008 | CN101133228A Damping device for an output shaft in a gearbox |
| 02/20/2008 | CN201024904Y Improved frame of light down-hole driller |
| 02/20/2008 | CN201024903Y An artesian well tower |
| 02/14/2008 | DE102006037671A1 Drill system for injection drilling in specialized underground works has drill string attached to support mast by collet at its upper end which is linked by tie rods attached to carriage on top of collet to steady rest |
| 02/13/2008 | CN201021600Y Hydraulic dynamic header driller |
| 02/13/2008 | CN101122211A Sailing course drill |
| 02/12/2008 | US7329070 Ram-type tensioner assembly with accumulators |
| 02/12/2008 | CA2457307C Hybrid coiled tubing/fluid pumping unit |
| 02/07/2008 | DE102006034890A1 Perpendicular drilling system for deep drilling hole, has drill head guided to drilling mast, and feeding device engaged at drill head and formed as hydraulic-piston-cylinder units whose stroke corresponds to length of drilling rod units |
| 02/06/2008 | CN201016275Y Inclined surface rock drill |
| 01/31/2008 | WO2008012580A1 Racking module |
| 01/31/2008 | WO2008012482A1 Method and apparatus for erecting a mast |
| 01/30/2008 | CN201013249Y Novel oil-well rig lifting foundation |
| 01/30/2008 | CN201013248Y Vehicle-carrying drilling exploration platform |
| 01/30/2008 | CN201013247Y Drilling rig foundation capable of carrying out parallelogram or vertical folding rising |
| 01/30/2008 | CN201013241Y Horizontal drill universal pulling head device |