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)
03/1983
03/08/1983US4375892 Oil well drilling rig mover
03/01/1983US4375241 Drilling installation, more specifically for oil-drilling operations
02/1983
02/15/1983CA1141139A1 Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location
02/01/1983US4371046 Apparatus for and method of drilling a hole into the ground
02/01/1983US4371041 Multi-purpose mobile drill rig
01/1983
01/18/1983US4368602 Mobile drilling rig having a retractable guiding mount or mast
01/04/1983US4366650 Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location
12/1982
12/28/1982US4365692 Elevating catwalk
12/21/1982US4364540 Support-arm assembly for a drill or borer, particularly for subterranean applications
12/21/1982US4364539 Diamond drill skid pad
11/1982
11/30/1982CA1136733A1 Computor-controlled oil drilling rig having drawworks motor and brake control arrangement
11/17/1982EP0064969A2 Boring apparatus, particularly gallery boring apparatus, and process for controlling boring apparatuses
11/09/1982US4357994 Hydraulic well equipment hoist
10/1982
10/26/1982US4355477 Working machine with improved jib section
09/1982
09/28/1982US4351398 Well drilling apparatus
09/28/1982CA1132530A1 Articulate support arm for drilling jar
09/14/1982US4348907 Retirement elongation indicator for mast raising lines
09/14/1982US4348780 Apparatus for elevating a mobile rig
09/07/1982US4348007 Gripper system for moving drilling rigs
09/07/1982US4347692 Portable drilling rig
08/1982
08/31/1982CA1130530A2 Drill stem guide assembly for rotary blast hole drills
08/17/1982US4344599 Rock drill boom structure
08/10/1982US4343367 Drilling machine positioning arrangement
08/10/1982US4343090 Suspension device for angle indicator
06/1982
06/29/1982US4336840 Double cylinder system
06/08/1982US4333634 Gripper assembly for moving drilling rigs
06/08/1982CA1124982A1 Angle drilling feature for rotary blast hole drills
06/01/1982CA1124483A1 Low lift, elevatable high floor drilling mast and substructure arrangement therefor
04/1982
04/29/1982WO1982001388A1 Flexible terminal point for lattice work constructions
04/27/1982US4326602 Portable stabbing board
04/27/1982CA1122380A1 Trailer mounted high floor drilling mast and substructure arrangement
04/13/1982US4324077 Method of moving a drilling rig long and short distances
03/1982
03/30/1982CA1120916A1 Positioning control system for rock drill support apparatus
03/30/1982CA1120915A1 Positioning control system for rock drill support apparatus
03/02/1982CA1119157A1 Derrick escape system
02/1982
02/09/1982CA1117933A1 Multi-purpose mobile drill rig
02/02/1982CA1117519A1 Method and device for setting the direction and/or the inclination of an elongated rock drilling apparatus
02/02/1982CA1117518A1 All terrain drill unit
02/02/1982CA1117301A1 Self-contained offshore platform
01/1982
01/05/1982US4308923 Accu-press
12/1981
12/29/1981US4307785 Pile driving rig having angulating knuckle lead therefor
12/22/1981CA1114720A1 Turning mechanism for the feed of a drilling machine, especially a rock drill
12/22/1981CA1114624A1 Offshore structure carrying a plurality of curved conductor casings and method of installing a curved conductor casing on an offshore structure
12/15/1981US4305466 Offshore platform having three decks
12/15/1981US4305237 Compact sectionalized drilling mast, power arrangement and support means therefor
12/08/1981CA1113730A1 Guide roller
12/01/1981US4303130 All terrain drill unit
11/1981
11/12/1981WO1981003157A1 Submerged buoyant offshore drilling and production tower
11/11/1981EP0039596A2 Offshore drilling and production system
11/11/1981EP0039589A2 Submerged buoyant offshore drilling and production tower and apparatus and method for installing same
11/10/1981CA1112060A1 Alignment device for submerged tube ends by means of a surface support
10/1981
10/06/1981US4292772 Trailer mounted high floor drilling mast and substructure arrangement
09/1981
09/30/1981EP0036850A2 A working machine for demolition and excavation work
09/29/1981CA1109857A1 Device for setting the direction and/or the inclination of an elongated rock drilling apparatus
09/22/1981US4290495 Portable workover rig with extendable mast substructure, platform mounted drawworks and adjustable wellhead anchor
09/22/1981US4290491 Rock drill positioning mechanism
09/22/1981CA1109279A1 Jack-up rig for marine drilling
09/16/1981EP0035982A1 A rock drilling rig
09/15/1981CA1109053A1 Auxiliary offshore rig and methods for using same
09/08/1981US4288056 Device for setting the direction and/or the inclination of an elongated rock drilling apparatus
08/1981
08/19/1981EP0034134A1 Rock bolting apparatus
07/1981
07/07/1981CA1104321A1 Low lift, elevatable high floor drilling mast and substructure arrangement therefor
06/1981
06/23/1981US4274494 Method and device for setting the direction and/or the inclination of an elongated rock drilling apparatus
06/16/1981US4273202 Drilling bit for blast furnace tap holes
06/16/1981CA1103233A1 Drill boom arrangement
06/16/1981CA1103115A1 Directional valve means for positioning machine units
06/09/1981CA1102689A1 Coiled tubing apparatus
06/09/1981CA1102570A1 Sea-floor template
05/1981
05/26/1981US4269542 Jack-up rig for marine drilling
05/26/1981US4269395 Portable hydraulic rig for performing workover, drilling and other operations on a well
05/26/1981US4269009 Low lift, elevatable high floor drilling mast and substructure arrangement therefor
05/26/1981CA1101835A1 Drill boom arrangement
05/26/1981CA1101834A1 Drill boom arrangement
05/26/1981CA1101833A1 Drill boom arrangement
05/19/1981US4267892 Positioning control system for rock drill support apparatus
05/19/1981US4267675 Well working rig
05/19/1981CA1101405A1 Support and positioner for a rock drill
05/12/1981US4266749 Drill boom arrangement
05/12/1981CA1100936A1 Well tubing handling apparatus
05/05/1981US4266171 Advance control system for use in a drilling apparatus
05/05/1981US4265304 Coiled tubing apparatus
05/05/1981CA1100318A1 Vmp riser horizontal bearing
04/1981
04/28/1981US4264234 Directional orientation apparatus for surface end of submerged oil line
04/28/1981US4264051 Laterally adjustable multiple head
04/15/1981EP0026942A1 Drill boom for drilling machines
02/1981
02/17/1981US4251176 Well tubing handling apparatus
02/17/1981US4251046 Extensible beam arrangement
02/10/1981US4249600 Double cylinder system
01/1981
01/27/1981CA1094541A1 Rock drill boom structure
01/07/1981EP0020627A1 Suspension device for angle indicator
12/1980
12/23/1980US4240511 Drilling machine centering arrangement
12/23/1980CA1092090A1 Means and method for drilling rock
11/1980
11/11/1980US4232850 Drill boom arrangement
11/11/1980US4232849 Drill boom arrangement
11/11/1980US4232848 Drill boom arrangement
11/11/1980CA1089438A1 Rock drill positioning mechanism
10/1980
10/28/1980US4230189 Drilled hole end adjusting arrangement
10/28/1980CA1088511A1 Portable drilling rig
10/14/1980US4227831 Self-contained offshore platform
10/14/1980CA1087601A1 Portable drilling machine
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