| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 08/14/2007 | US7255180 Modular drill system requiring limited field assembly and limited equipment support |
| 08/08/2007 | CN2931751Y Sounding borer with supporting rack |
| 08/08/2007 | CN1330844C Drill head steering controll method |
| 08/08/2007 | CN101012735A Portable well-digging machine |
| 08/01/2007 | CN2929142Y Novel vertical self lift drilling machine base |
| 08/01/2007 | CN2929139Y Drilling device |
| 08/01/2007 | CN1329616C Support type universal drilling machine |
| 07/26/2007 | US20070169952 Instrument for dispatching screws |
| 07/25/2007 | CN2926482Y Well-drilling oil pipe of hydrogen-sulfide-resisting corrosive coating |
| 07/25/2007 | CN2926478Y Rotary-dug driller |
| 07/19/2007 | WO2007081952A1 Top feed of control lines to table-elevated spider |
| 07/19/2007 | CA2636986A1 Top feed of control lines to table-elevated spider |
| 07/18/2007 | CN2924105Y Force-shift control mechanism for energy-accumulated servicing rig |
| 07/18/2007 | CN2923972Y Fully-hydraulic multi-direction altitude anchoring driller |
| 07/17/2007 | CA2413825C Telescoping rig with torque carrier |
| 07/11/2007 | CN2921255Y Adjustable derrick substructure |
| 07/05/2007 | DE102005060740A1 Drilling apparatus for e.g. well, has rod, which is arranged in fixed manner, where rod is designed from two pipe pieces, which are movable axially parallel to one another and are arranged coaxially to one another |
| 07/03/2007 | CA2218674C A hydraulic arrangement for turning the actuator of a rock drilling machine |
| 07/03/2007 | CA2214798C Universal pipe injection apparatus for wells and method |
| 06/28/2007 | WO2007073327A1 Control system and method for controlling a drilling rig |
| 06/28/2007 | US20070144745 Drilling rig apparatus and downhole tool assembly system and method |
| 06/27/2007 | EP1799953A1 Rock drilling rig, service platform connected to a rock drilling rig and a roof for a service platform |
| 06/27/2007 | CN2916094Y Slide-lifting type universal drilling machine |
| 06/27/2007 | CN2916092Y Four-link amplitude modulation mechanism for non-excavating horizontal directional drilling machine |
| 06/27/2007 | CN1987040A Synchronous control device for petroleum drilling rig derrick and base hydraulic lifting |
| 06/27/2007 | CN1987039A Hybrid power well repairing machine |
| 06/27/2007 | CN1987038A Automatic drilling machine for hand held water drill |
| 06/21/2007 | WO2006060788A3 Downhole swivel apparatus and method |
| 06/20/2007 | EP1797276A1 Sleeve arrangement |
| 06/20/2007 | EP1797275A1 Housing arrangement |
| 06/20/2007 | CN2913578Y Rotary digging driller mast |
| 06/20/2007 | CN1985066A Apparatus and method for modified horizontal directional drilling assembly |
| 06/20/2007 | CN1322221C Feeding and supporting unit of movable drilling machine |
| 06/07/2007 | WO2007064232A1 Top drive drilling apparatus |
| 06/07/2007 | WO2007064231A1 Top drive drilling apparatus |
| 06/07/2007 | CA2631313A1 Top drive drilling apparatus |
| 06/07/2007 | CA2630793A1 Top drive drilling apparatus |
| 06/06/2007 | EP1792039A2 Tool with motion and orientation indicators |
| 05/31/2007 | US20070119622 Drilling rig |
| 05/30/2007 | CN2906033Y High-strength drill tower |
| 05/30/2007 | CN1973109A Telescopic feed beam for rock drill |
| 05/23/2007 | CN2903565Y Dragging fixing self locking device |
| 05/23/2007 | CN2903335Y Drill capable of arbitrarily selecting position |
| 05/23/2007 | CN2903331Y Multishaft hole drilling machine |
| 05/16/2007 | EP1784555A1 Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance |
| 05/16/2007 | CN2900754Y Double layer slide frame propeller for drill vehicle |
| 05/15/2007 | CA2533839C Method of determining a cross-load on a mobile repair unit for a well |
| 05/15/2007 | CA2436296C Rig with torque carrier |
| 05/02/2007 | CN2895699Y Rotary-digging drilling machine |
| 04/26/2007 | WO2007024779B1 System for tracking and maintaining an on-grade horizontal borehole |
| 04/25/2007 | CN2893124Y Derrick support device |
| 04/19/2007 | WO2007043856A1 Offshore platform with movable cantilever extending beyond the deck |
| 04/19/2007 | WO2007041822A1 Apparatus and method for handling pipe sections |
| 04/18/2007 | CN2890310Y Double-gear rotary drilling device |
| 04/18/2007 | CN2890309Y Drilling device with ball-jamming type drill head |
| 04/18/2007 | CN1311140C Driller capable of being quick mounted and dismounted and method for transferring same |
| 04/05/2007 | WO2004097158A3 Fast moving drilling rig |
| 04/05/2007 | US20070074881 Pile driving control apparatus and pile driving system |
| 04/04/2007 | EP1366267B1 Rock drilling rig provided with a sound dampening casing |
| 03/27/2007 | US7195082 Drill head steering |
| 03/22/2007 | WO2007032673A1 Drilling rig and method for introducing one or more drilling pipes into an underbalanced well using same |
| 03/22/2007 | CA2619932A1 Drilling rig and method for introducing one or more drilling pipes into an underbalanced well using same |
| 03/20/2007 | US7191839 Drilling rig apparatus and downhole tool assembly system and method |
| 03/14/2007 | CN2878674Y Wind drill |
| 03/14/2007 | CN2878648Y Straight/oblique two-purpose light drilling tower |
| 03/14/2007 | CN1928317A Low tunnel rockbolt anchorage cable pneumatic drilling machine |
| 03/07/2007 | EP1436511B1 Method for restricting leakage of hydraulic oil in a rock drilling rig |
| 03/07/2007 | CN1924281A Full-hydraulic multifunctional driller for gas extraction, drainage and discharge |
| 03/01/2007 | WO2007024779A1 System for tracking and maintaining an on-grade horizontal borehole |
| 02/28/2007 | EP1756391A2 Modular drill system requiring limited field assembly and limited equipment support and method of use |
| 02/28/2007 | CN2874005Y Dense shallow hole hydraulic drill frame |
| 02/20/2007 | CA2533843C Method of distinguishing between installing different sucker rods |
| 02/20/2007 | CA2533832C Method of distinguishing the raising and lowering of tubing and sucker rods |
| 02/15/2007 | WO2006020571A3 Tool with motion and orientation indicators |
| 02/15/2007 | US20070034394 Power tools |
| 02/14/2007 | EP1751393A1 Telescopic feed beam for rock drill |
| 02/14/2007 | EP1751390A2 Apparatus and method for modified horizontal directional drilling assembly |
| 02/11/2007 | CA2555858A1 Portable drilling mast structure |
| 02/03/2007 | CA2514658A1 Well servicing rig and manifold assembly |
| 01/31/2007 | CN2864068Y Column rotary locking cover |
| 01/18/2007 | US20070011984 Structural connector for a drilling rig substructure |
| 01/17/2007 | CN2858926Y Articulated drillng holder lifting luffer for open drill |
| 01/11/2007 | WO2007004969A1 Light metal feed beam for use on a drill rig |
| 01/11/2007 | WO2007004887A1 Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
| 01/11/2007 | WO2007002987A1 Drill slide for rock drilling apparatus |
| 01/11/2007 | CA2613824A1 Drill slide for rock drilling apparatus |
| 01/09/2007 | CA2322917C Trolley and traveling block system |
| 01/09/2007 | CA2293746C Method of controlling rock drilling |
| 01/04/2007 | WO2007000488A1 Arrangement for positioning drilling unit |
| 01/03/2007 | CN1888371A Drilling machine with supporting frame |
| 01/02/2007 | US7155873 Structural connector for a drilling rig substructure |
| 12/27/2006 | CN1884786A Fish bone type branch well drilling and completing method |
| 12/27/2006 | CN1292241C Positioning and fastening arrangement for drilling and coring on vertical circular cylinder |
| 12/21/2006 | US20060283614 Automated, low profile drilling/bolting module with color-coded display |
| 12/19/2006 | CA2215384C Drilling device |
| 12/08/2006 | CA2509300A1 Modular self-propelled drillling apparatus |
| 12/06/2006 | CN2844391Y Airborne roof bolter of fast tunneller in coal mine |
| 11/29/2006 | EP1520082B1 Jacking frame for coiled tubing operations |
| 11/29/2006 | CN2841935Y Common break-off type rope continuous lifting rig derrick and base integrating structure |
| 11/29/2006 | CN2841934Y Retractable derrick lifting support |