| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 08/16/2001 | EP1123454A1 System, apparatus, and method for installing control lines in a well |
| 08/16/2001 | EP1123177A1 A device for the making of holes and/or demolition in concrete or the like |
| 08/09/2001 | WO2001057355A1 Linear coiled tubing injector/hybrid sectional and coiled tubing drilling rig |
| 08/03/2001 | CA2298089A1 Linear coiled tubing injector |
| 08/01/2001 | EP1119685A1 Method and device for riser tensioning |
| 07/12/2001 | WO2001049966A1 Modular light weight drilling rig |
| 07/12/2001 | CA2394300A1 Modular light weight drilling rig |
| 07/11/2001 | EP1113976A1 Boom arrangement for rock drilling apparatus |
| 07/11/2001 | CN1303461A Boom arrangement for rock drilling apparatus |
| 07/10/2001 | US6257350 Multiple position staking system for a horizontal directional drill |
| 07/10/2001 | US6257349 Top head drive and mast assembly for drill rigs |
| 07/05/2001 | WO2001048351A2 Subsea well intervention vessel |
| 06/20/2001 | EP1108110A2 Drilling device and method for drilling a well |
| 06/20/2001 | EP1108109A1 Hydraulic drilling rig |
| 06/14/2001 | WO2001042616A1 A hydraulic drilling rig |
| 06/13/2001 | EP1105619A2 Drilling device and method for drilling a well |
| 06/05/2001 | CA2013710C A rock drilling apparatus |
| 05/31/2001 | WO2001038682A1 Self-propelled tool-carrier |
| 05/30/2001 | EP1103695A2 Device for mounting a drilling tool on a mast |
| 05/09/2001 | EP1098064A1 Auger drilling device |
| 04/25/2001 | EP1094196A1 Method and soil-sampling device for preparing soil samples |
| 04/24/2001 | US6220787 Ship type floating oil production system |
| 04/18/2001 | CN2426912Y Oil derrick for petroleum drilling and repairing equipment |
| 04/17/2001 | US6217258 Dual hoist derrick system for deep sea drilling |
| 04/17/2001 | US6216803 Anchor assembly |
| 03/22/2001 | WO2001020117A1 Boom arrangement for rock drilling apparatus |
| 03/21/2001 | EP1085168A1 Apparatus for taking up forces for a drilling mast |
| 03/20/2001 | US6203247 Drilling vessel with moveable substructure |
| 03/13/2001 | US6199656 Casing for noise attenuation in a rock drilling rig |
| 02/22/2001 | DE19938578A1 Fahrbares Arbeitsgerät Working appliance movable |
| 02/21/2001 | EP1077306A2 Mobile work apparatus |
| 02/20/2001 | US6189628 Earth borer system with drill-rod changer |
| 02/18/2001 | CA2316494A1 Mobile working apparatus |
| 02/14/2001 | EP1075585A1 Device relating to a boring assembly |
| 02/08/2001 | WO2000039412A3 A casing for noise attenuation in a rock drilling rig and an arrangement in conjunction with a rock drilling rig |
| 02/06/2001 | US6182773 Blasthole drill having a drill pipe seal assembly |
| 01/30/2001 | US6179068 Directional drilling apparatus |
| 01/17/2001 | CN2415154Y Base for drill rig |
| 01/11/2001 | WO2001002691A1 Rock drill and mounting frame |
| 12/19/2000 | US6161358 Modular mobile drilling system and method of use |
| 12/06/2000 | EP1056924A1 Drilling tower |
| 11/28/2000 | US6152244 Drilling apparatus mounted on wheels, with articulated chassis |
| 11/14/2000 | US6145933 Method for removing hard rock and concrete by the combination use of impact hammers and small charge blasting |
| 11/08/2000 | EP0796386B1 Arrangement for mounting swing cylinders in boom for rock drilling unit |
| 11/08/2000 | EP0777810B1 Portable top drive |
| 11/08/2000 | CN2405000Y Derrick for petroleum drilling preparing equipment |
| 11/02/2000 | WO2000065193A1 Drill rod handling device |
| 11/01/2000 | CN2403887Y Airleg of rock drill |
| 10/25/2000 | CN2402794Y Special derrick |
| 10/19/2000 | WO2000061335A1 Post driving and earth boring machine |
| 10/19/2000 | DE19901001A1 Borehole drilling device has frame supporting rotary drive provided with drill rod magazine for interchangable drill rods handled via transport arm with drill rod release device |
| 10/17/2000 | US6131674 Gripping apparatus for resisting sliding of drilling machine |
| 10/17/2000 | US6131664 System, apparatus, and method for installing control lines in a well |
| 10/12/2000 | WO2000060211A1 A drill rig for use in an underground mine |
| 09/26/2000 | CA2235555C Mobile multi-function rig |
| 09/21/2000 | WO2000055470A1 Drilling rig with pipe handling means |
| 09/12/2000 | US6116345 Tubing injection systems for oilfield operations |
| 08/24/2000 | WO2000049266A1 Offshore drill deck structure |
| 08/23/2000 | CN1264452A Directional drilling apparatus |
| 08/22/2000 | US6105684 Roof bolter or a roof bolt installation apparatus |
| 07/26/2000 | CN1261419A 塔架 Tower |
| 07/25/2000 | CA2248563C Feed shell positioning mechanism |
| 07/12/2000 | CN2387299Y Anti-stripping double-action sleeve extension oil cylinder |
| 07/11/2000 | US6085851 Multi-activity offshore exploration and/or development drill method and apparatus |
| 07/06/2000 | WO2000039412A2 A casing for noise attenuation in a rock drilling rig and an arrangement in conjunction with a rock drilling rig |
| 06/27/2000 | US6079504 Underground mining drill rig with safety interlock |
| 06/21/2000 | EP1010816A1 Mobile work apparatus |
| 06/21/2000 | EP1009912A1 Method of controlling rock drilling |
| 06/20/2000 | US6076615 Multi-linked working boom for working machine |
| 06/15/2000 | WO2000034623A1 Method and rock drilling apparatus for controlling rock drilling |
| 06/15/2000 | WO2000034617A1 Method for correcting positioning errors in rock drilling, and a rock drilling equipment |
| 06/15/2000 | WO2000034590A1 Drilling vessel with moveable substructure |
| 06/13/2000 | US6074153 Drill rods feeding device |
| 06/07/2000 | EP0715679B1 Arrangement for mounting slides |
| 05/30/2000 | US6068069 Multi-activity offshore exploration and/or development drilling method and apparatus |
| 05/30/2000 | US6068066 Hydraulic drilling rig |
| 05/25/2000 | WO2000011308A3 Drilling device and method for drilling a well |
| 05/24/2000 | CN2379598Y Transition ring assembly of drilling machine and top drive drilling equipment with same |
| 05/16/2000 | US6062650 Continuous control system for a mining or tunnelling machine |
| 05/02/2000 | US6056071 Multi-activity offshore exploration and/or development drilling method and apparatus |
| 04/25/2000 | CA2091529C Directional drilling apparatus |
| 04/20/2000 | WO2000022277A1 Method and device for riser tensioning |
| 04/13/2000 | WO2000011306A3 Drilling device and method for drilling a well |
| 04/11/2000 | US6047781 Multi-activity offshore exploration and/or development drilling method and apparatus |
| 04/06/2000 | WO2000019061A1 System, apparatus, and method for installing control lines in a well |
| 03/30/2000 | WO2000016950A1 A device for the making of holes and/or demolition in concrete or the like |
| 03/28/2000 | CA2085044C Well rig lift system and a hydraulic energy-storing well rig lift system |
| 03/14/2000 | CA2021781C Device for positioning of a drill bit |
| 03/08/2000 | EP0843774A4 Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting |
| 03/07/2000 | US6032929 Arrangement in connection with a yoke in a hoisting system for a derrick |
| 03/07/2000 | US6032744 Universal pipe and tubing injection apparatus and method |
| 03/02/2000 | WO2000011308A2 Drilling device and method for drilling a well |
| 03/02/2000 | WO2000011306A2 Drilling device and method for drilling a well |
| 03/02/2000 | WO2000011305A1 Hydraulic drilling rig |
| 03/02/2000 | DE19837692A1 Integrierte Bohrvorrichtung und Verfahren zum Abteufen einer Bohrung Integrated drilling apparatus and method for drilling a bore |
| 03/02/2000 | CA2340407A1 Hydraulic drilling rig |
| 02/29/2000 | US6030148 Method for improving the feasibility of a drilling rig of jack-up type and a drilling rig of jack-up type |
| 02/23/2000 | EP0980461A2 Directional drilling apparatus |
| 02/17/2000 | WO1998050667A8 Directional drilling apparatus |
| 02/16/2000 | CN2364199Y Crownblock shaft for drilling machine |