| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 03/01/2005 | US6860340 Rock drilling machine |
| 03/01/2005 | US6860337 Integrated mast and top drive for drilling rig |
| 02/23/2005 | EP1507952A2 Underwater drilling rig |
| 02/23/2005 | CN2680845Y Lifting device for piling machine drill tower |
| 02/22/2005 | US6857483 Drilling device and method for drilling a well |
| 02/09/2005 | CN2677584Y Integral structure for synchonous lifting drilling machine derrick and base |
| 02/09/2005 | CN2677583Y Integral structure of prolonge continous lifting drilling machine derrick and base |
| 02/08/2005 | CA2358253C Top head drive and mast assembly for drill rigs |
| 02/03/2005 | US20050022985 Service rig with torque carrier |
| 02/02/2005 | CN2675842Y Novel glass fibre reinforced plastic air leg for roofbolter |
| 02/01/2005 | US6848515 Modular drilling rig substructure |
| 02/01/2005 | CA2425448C Drilling rig apparatus and downhole tool assembly system and method |
| 01/26/2005 | CN2674067Y Light wt. and high anti-torque force derrick |
| 01/26/2005 | CN2674063Y Gantry type engineering drilling machine |
| 01/26/2005 | CN2674060Y Pipe-line arrangement for out-hanging type power head |
| 01/11/2005 | US6840322 Subsea well intervention vessel |
| 01/05/2005 | CN2668823Y Integral concentrated dirt-receiving device |
| 12/29/2004 | CN2667139Y Drilling rig derrick borehole regulating and centering apparatus |
| 12/29/2004 | CN2667138Y Vertical self-lifting adjustable height drill block and derrick integral base |
| 12/22/2004 | EP1119685B1 Method and device for riser tensioning |
| 12/15/2004 | EP1113976B1 Boom arrangement for rock drilling apparatus |
| 12/02/2004 | CA2443508A1 Dolly for a transportable adjustable width mast |
| 12/01/2004 | CN2660089Y Spirally lifting headframe basement having lifting system and wire threading way |
| 12/01/2004 | CN1550636A 全向钻机 Omnidirectional rig |
| 11/11/2004 | WO2004097162A1 Transportation, storage, and installation system for rig utilities |
| 11/11/2004 | WO2004097161A1 Modular drilling rig substructure |
| 11/11/2004 | WO2004097158A2 Fast moving drilling rig |
| 11/10/2004 | EP1475511A1 Omni-directional drilling machine |
| 11/09/2004 | US6814167 Boring device and boring method |
| 11/04/2004 | WO2004094762A2 Structural connector for a drilling rig substructure |
| 11/03/2004 | EP1472431A2 Method and system for building modular structures from which oil and gas wells are drilled |
| 10/28/2004 | US20040211598 Fast moving drilling rig |
| 10/28/2004 | US20040211572 Modular drilling rig substructure |
| 10/21/2004 | US20040206551 Drilling rig apparatus and downhole tool assembly system and method |
| 10/21/2004 | US20040206041 Structural connector for a drilling rig substructure |
| 10/14/2004 | WO2004067898A3 Integrated mast and top drive for drilling rig |
| 10/14/2004 | US20040200641 Method and apparatus for movement of drilling equipment between adjacent drilling locations |
| 10/10/2004 | CA2425062A1 Method and apparatus for movement of drilling equipment between adjacent locations |
| 10/07/2004 | US20040194985 Rock drilling rig and rock breaking machine |
| 10/05/2004 | CA2307386C Torque boost apparatus and method for top drive drilling systems |
| 09/29/2004 | CN2644745Y Step-by-step paralleled moved hydraulic translation device of land oil-well rig |
| 09/29/2004 | CN2644657Y Folding vertically displaceable drilling machine base |
| 09/29/2004 | CN2644656Y Vertically hoist A-type headframe |
| 09/29/2004 | CN2644655Y K-type jack-up headframe |
| 09/23/2004 | US20040183059 Method and apparatus for an improved lifting system |
| 09/21/2004 | US6793024 Rock drilling rig |
| 09/16/2004 | US20040178004 Multi-functional drilling vehicle |
| 09/15/2004 | EP1123454A4 System, apparatus, and method for installing control lines in a well |
| 09/15/2004 | CN1529786A Self-erecting rig |
| 09/14/2004 | CA2306714C Apparatus and method for rapid replacement of upper blowout preventers |
| 09/08/2004 | CN2639503Y Rope block device for two-storey working platform |
| 09/02/2004 | WO2004074626A1 Telescopic feed beam for rock drill and method of measuring rock drill travel |
| 09/01/2004 | EP1451438A1 Drilling mast with movable and fixed unscrewing vice |
| 08/12/2004 | WO2004067898A2 Integrated mast and top drive for drilling rig |
| 08/12/2004 | CA2511118A1 Integrated mast and top drive for drilling rig |
| 08/10/2004 | CA2332420C Linear coiled tubing injector |
| 08/10/2004 | CA2332290C Hybrid sectional and coiled tubing drilling rig |
| 08/05/2004 | US20040151549 Cantilevered multi purpose tower |
| 08/04/2004 | CN2630465Y Derrick for oil drilling and well repair |
| 07/22/2004 | WO2003095787A3 Method and system for building modular structures from which oil and gas wells are drilled |
| 07/21/2004 | EP0868592B1 Arrangement in connection with a yoke in a hoisting system for a derrick |
| 07/20/2004 | US6763898 Dual hoist system |
| 07/20/2004 | US6763890 Modular coiled tubing system for drilling and production platforms |
| 07/14/2004 | EP1436511A1 Method for restricting leakage of hydraulic oil in a rock drilling rig |
| 07/14/2004 | EP1436487A1 Rock drilling apparatus and rock breaking machine |
| 07/14/2004 | EP1436483A1 Multi-functional drilling vehicle |
| 07/14/2004 | CN2625561Y Module fast-assembling drill floor |
| 07/08/2004 | WO2003095786A3 Method of and system for building structures and drilling oil and gas wells in arctic, inaccessible or environmentally sensitive locations |
| 07/08/2004 | US20040129417 Drilling rig with torque carrier |
| 07/07/2004 | CN2623866Y Telescopic A model headframe |
| 07/06/2004 | CA2338823C Drilling apparatus |
| 06/16/2004 | EP1428972A2 Device with at least one drilling machine |
| 06/08/2004 | US6745852 Platform for drilling oil and gas wells in arctic, inaccessible, or environmentally sensitive locations |
| 06/02/2004 | CN2619043Y Mine round disc type drill frame gas cap |
| 05/06/2004 | US20040084213 System for drilling oil and gas wells using oversized drill string to achieve increased annular return velocities |
| 04/29/2004 | WO2004035985A1 An offshore drilling system |
| 04/29/2004 | WO2004035984A1 Drill head steering |
| 04/14/2004 | EP1407114A1 Rock-bolting apparatus and method |
| 04/14/2004 | CN2611574Y Headframe fixing device |
| 04/13/2004 | US6719062 CT drilling rig |
| 04/06/2004 | US6715564 Hydraulic drilling rig |
| 04/01/2004 | US20040060739 Method and system for building modular structures from which oil and gas wells are drilled |
| 04/01/2004 | DE202004001258U1 Vorrichtung zum Herstellen von Tiefbohrungen in geologischen Strukturen An apparatus for producing deep holes in geological structures |
| 04/01/2004 | DE202004001242U1 Unterbaukonstruktion für eine Tiefbohr-Plattform Substructure for a deep drilling platform |
| 03/31/2004 | CN2608671Y Compensating type oil derrick lifting device |
| 03/25/2004 | US20040055789 Drilling mast with movable and fixed unscrewing vice |
| 03/23/2004 | US6708765 Method and device for riser tensioning |
| 03/16/2004 | US6705407 Rock drilling and mounting frame |
| 03/10/2004 | EP1395511A1 Method and apparatus for an improved lifting system |
| 03/10/2004 | CN2606170Y Multifunctional two stage aerated support for hammer drill |
| 03/04/2004 | WO2004018826A1 Subsea drilling module for use in drilling of oil and gas wells |
| 03/03/2004 | EP0868593B1 Apparatus and method for raising and lowering a piston in a piston-cylinder arrangement in a derrick |
| 03/02/2004 | US6698978 Rock drilling rig |
| 02/25/2004 | EP1390585A2 Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible |
| 02/12/2004 | US20040026098 Rock drilling machine |
| 02/11/2004 | CN2603187Y Aluminium alloy light boring machine used in hilly area |
| 01/20/2004 | CA2133836C Method and apparatus for transporting and using a drilling or crane apparatus from a movable vessel |
| 01/15/2004 | WO2004005666A1 Jacking frame for coiled tubing operations |
| 01/15/2004 | DE10227879A1 Lichtvorhang für bewegte Maschinen oder Maschinenteile Light curtain for moving machines or machine parts |
| 01/13/2004 | US6675899 Self-erecting rig |