Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 15 - Supports for the drilling machine, e.g. derricks or masts
Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619)
01/2004
01/08/2004WO2003093625A3 Underwater drilling rig
12/2003
12/31/2003CN2595979Y Supporting type vertical engineering drilling machine
12/30/2003CA2287317C Tower
12/24/2003CN2594442Y Monosegment detachable vertically lifting derrick and its lifting device
12/23/2003CA2203736C Guided drilling system with shock absorber
12/18/2003DE20314277U1 Drill for rock has base frame and tracked undercarriage with drill head supported on projecting subframe
12/04/2003US20030221870 Earth loop heat exchange methods and systems
12/04/2003US20030221835 Modular coiled tubing system for drilling and production platforms
12/04/2003US20030221822 Jacking frame for coiled tubing operations
12/03/2003CN2589658Y Earth surveying driller platform suitable for operation in shallow water and muck land
11/2003
11/20/2003WO2003095787A2 Method and system for building modular structures from which oil and gas wells are drilled
11/20/2003WO2003095786A2 Method of and system for building structures and drilling oil and gas wells in arctic, inaccessible or environmentally sensitive locations
11/13/2003WO2003093625A2 Underwater drilling rig
11/13/2003US20030209363 Method of and system for building structures and drilling oil and gas wells in arctic, inaccessible or environmentally sensitive locations
11/12/2003EP1108110B1 Drilling device and method for drilling a well
11/12/2003EP1009912B1 Method of controlling rock drilling
11/12/2003CN2585962Y Driller
11/05/2003EP0843774B1 Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting
11/04/2003CA2042723C Derrick assembly capable of conveying pipe sections between a drill string and a rack for said pipe sections
10/2003
10/28/2003US6637525 Ground drilling machine and rod exchanger utilized therefor
10/21/2003US6634443 Drill rod handling device
10/21/2003US6634436 Mobile land drilling apparatus and method
10/15/2003CN2580089Y New anchor rod quick changing device
10/14/2003CA2088924C Controlled fracture method and apparatus for breaking hard compact rock and concrete materials
10/08/2003EP1105619B1 Drilling device and method for drilling a well
10/01/2003EP1075585B1 Device relating to a boring assembly
10/01/2003CN2576953Y One-time lifting drillnig rig with low-level mounting
09/2003
09/24/2003CN2575285Y Wear protector for rotary casings
09/18/2003US20030172599 Arrangement for self-elevating drilling rig
09/16/2003US6618999 Crown bumper
09/10/2003EP1341986A2 Self-erecting rig
09/09/2003US6616244 Method and arrangement for determining position of unmanned mining vehicles
09/04/2003US20030164242 Displacement and support device for a portable power tool
09/03/2003CN1120284C Method and device for retaining vertical pipe in tension status on drilling vessel
08/2003
08/27/2003CN2568797Y Double-lifting base lifter for high drill stand
08/26/2003US6609565 Trolley and traveling block system
08/21/2003US20030155140 Method of opening joints between drilling components, and rock drill
08/12/2003US6604586 Drilling apparatus
08/05/2003US6601649 Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible
07/2003
07/30/2003EP1330589A1 Rock drilling machine
07/30/2003CN1432716A Feeding and supporting unit of movable drilling machine
07/24/2003US20030136571 Piovoting support for power tool
07/24/2003DE10206646C1 Horizontal drilling rig displaced longitudinally relative to tracked transport vehicle between horizontal transport position and angled working position
07/23/2003CN2561980Y Long-ranger plunger oil cylinder with internal exhaust device
07/22/2003US6594960 Method of folding an articulating mast
07/15/2003US6591904 Equipment for stowing and handling drill pipes
07/09/2003EP1326001A1 Feed beam for a portable machine tool
07/03/2003US20030121230 Mobile rig
07/02/2003EP0975852B1 Tower
06/2003
06/24/2003US6581698 Drilling device and method for drilling a well
06/12/2003WO2003048502A1 Drilling mast with movable and fixed unscrewing vice
06/12/2003US20030106695 CT drilling rig
06/05/2003US20030102166 Modular light weight drilling rig
05/2003
05/22/2003US20030094308 Boring device and boring method
05/14/2003EP1310600A1 Drilling apparatus and method
05/14/2003CN1417448A Hole drilling equipment and method
05/08/2003DE10150110C1 Drilling rig, for drilling and setting anchors, has a base plate with a gearing carriage joined to rollers
05/07/2003EP0815352B1 An arrangement in a feed beam of a rock drill
05/01/2003US20030079883 Mast for handling a coiled tubing injector
04/2003
04/29/2003US6554075 CT drilling rig
04/24/2003WO2003033874A1 Rock drilling apparatus and rock breaking machine
04/24/2003WO2002087959A3 Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible
04/24/2003US20030077124 Rock drilling rig
04/23/2003EP0920567B1 Rock drilling rig
04/23/2003CN1413286A Subsea well intervention vessel
04/17/2003WO2003031764A1 Multi-functional drilling vehicle
04/10/2003US20030066686 Interconnected, rolling rig and oilfield building(s)
04/10/2003DE10155105C1 Earth drill with pipe line installer has frame supporting hollow drill shaft with flushing pipes
03/2003
03/27/2003WO2003025402A1 Method for restricting leakage of hydraulic oil in a rock drilling rig
03/20/2003US20030052529 Arrangement for determining position of unmanned mining vehicles
03/20/2003US20030051915 Articulating mast
03/20/2003US20030051888 Hydraulic drilling rig
03/13/2003US20030047334 Rock drilling rig
03/12/2003EP1289716A1 Pivoting support for power tool
03/12/2003CN2539831Y Telescopic three-section derrick for truck-mounted drilling and repairing equipment
03/05/2003EP0815350B1 Drilling device
03/04/2003US6527063 Directional boring device
02/2003
02/26/2003EP0934483B1 Hose supporting arrangement for actuators of rock drill apparatus
02/25/2003US6523319 Mobile rig
02/18/2003US6520720 Artificial island, artificial island support and method for building an artificial island
02/12/2003EP1283306A1 Artificial island, offshore structure for an artificial island and method for building an artificial island
02/12/2003CN2535543Y Driller base
01/2003
01/22/2003EP1277913A2 Multi-activity offshore exploration and/or development drilling method and apparatus
01/22/2003EP0836668B1 Multi-activity offshore exploration and/or development drilling method
01/15/2003EP1274918A1 Rock drilling rig
01/15/2003EP1274917A1 Rock drilling rig
01/15/2003EP0824634B1 A hydraulic arrangement for turning the actuator of a rock drilling machine
01/15/2003CN1098964C Derrick
01/14/2003CA2241799C Wheel-mounted drill rig with articulated frame
01/02/2003US20030000740 Subsea well intervention vessel
01/02/2003EP0980461A4 Directional drilling apparatus
12/2002
12/24/2002US6497296 Anchoring system for a directional drilling machine and methods of use
12/19/2002WO2002100757A1 Method and apparatus for an improved lifting system
12/18/2002EP1266124A1 Arrangement for determining position of unmanned mining vehicles
12/18/2002CN2526492Y Whole translation device of drilling machine derrick for petroleum exploration and geologic field drilling machine
12/17/2002US6494271 Offshore floating production method
12/11/2002CN1095920C Boom arrangement for rock drilling apparatus
12/10/2002US6491477 Self-elevating drilling unit
11/2002
11/27/2002CN2522609Y Drilling rig derrick tilting apparatus
11/26/2002CA2141984C Continuous control system for a mining or tunnelling machine
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