Patents
Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198)
08/1984
08/21/1984US4466651 Block
08/21/1984US4466488 Position indicator for drill string compensator
08/21/1984US4466487 Method and apparatus for preventing vertical movement of subsea downhole tool string
08/21/1984CA1172975A1 Pipe thread protector
08/15/1984EP0115938A1 Riser support system
08/15/1984EP0115533A1 Pipe pickup and laydown machine
08/15/1984EP0115492A1 An attachment for a powered tool
08/14/1984US4465131 Well casing jack mechanism
08/08/1984EP0115073A2 Switching and control device for hydraulic or pneumatic equipments
08/07/1984CA1172242A1 Reversal mechanism for power tong
07/1984
07/31/1984US4462749 Pipe handling apparatus
07/31/1984US4462733 Beam type racking system
07/25/1984EP0114146A2 Universal drilling apparatus equipped with means for rapid raising of the drill string
07/24/1984US4461354 Hydraulic well cap
07/17/1984US4460303 Drill pipe loader
07/17/1984US4460293 System for lining a bore hole
07/17/1984US4460038 Installation for testing a well and a process for use thereof
07/10/1984US4458934 Handles for slips used on drilling rigs
07/10/1984US4458768 Top drive well drilling apparatus
07/10/1984US4458764 Device in rock or earth drilling apparatus for rotary drilling
07/05/1984WO1984002555A1 Plant for making bore-holes in the side walls of underground exploitation chambers of small width
07/04/1984EP0112811A2 Pressurized medium actuated gripping device
07/04/1984EP0112810A2 A rock drilling apparatus and a method of optimizing percussion rock drilling
07/03/1984CA1170292A1 Telescopic joint upper tube retainer method and apparatus
07/03/1984CA1170063A1 Motion compensator with improved position indicator
07/03/1984CA1170016A1 Drilling rig
06/1984
06/26/1984US4456077 Device for reciprocating motion of a rotating drilling body of a drilling machine
06/26/1984CA1169627A1 Drilling rig mast apparatus
06/20/1984EP0111191A2 Power tong methods and apparatus
06/19/1984US4455116 Drill pipe handling and storage apparatus
06/19/1984US4454912 Swab hoist use thereof in conveying crude oil and natural gas
06/12/1984US4453884 Hook rotating mechanism
06/12/1984US4453872 Handling apparatus for pipe and other tubulars
06/12/1984CA1169048A1 Handling apparatus for pipe and other tubulars
06/07/1984WO1984002153A1 Earth-working machine
06/05/1984US4452413 Apparatus for temporarily supporting drilling equipment on a drilling rig floor
06/05/1984US4452314 Method of installing a reinforced thermosetting resin sucker rod assembly composed of pultruded arcuate sections
05/1984
05/29/1984US4451209 Method of extracting fluid from the earth
05/29/1984US4451179 Method and apparatus for affixing a roof bolting plate to a mine roof
05/29/1984US4450906 Apparatus for measuring the weight of the drill string
05/29/1984US4450905 Mud bucket
05/29/1984US4450606 Slip elevator
05/22/1984US4449854 Motion compensator system
05/22/1984US4449596 Drilling of wells with top drive unit
05/22/1984US4449592 Automatic drill string section changer
05/22/1984CA1167833A1 Pipe handling system with apron and stacking arms
05/15/1984US4448568 Marine surface facility work station for subsea equipment handling
05/15/1984US4448394 High low safety apparatus for drilling rigs
05/15/1984US4448246 Apparatus for setting casing in an oil well
05/08/1984US4446761 Pipe spinning tool
05/08/1984US4446745 Apparatus for counting turns when making threaded joints including an increased resolution turns counter
05/08/1984CA1167025A1 Dual camming action jaw assembly and power tong
05/08/1984CA1167024A1 Self-centering clamp for down-hole tubulars
05/08/1984CA1167023A1 Device for producing boreholes in coal or the like
05/01/1984US4445579 Pipe carousel for well-drilling rig
05/01/1984US4445403 Power tongs
05/01/1984US4445402 Power tong and back-up tong assembly
04/1984
04/26/1984WO1984001599A1 Assembly for handling and racking drill pipe in a derrick
04/25/1984EP0106549A2 Casing alignment tool
04/24/1984US4444536 High speed well working apparatus
04/24/1984US4444278 Rotatable drilling head
04/24/1984US4444273 Torque control system for catheads
04/18/1984EP0105299A1 Casing stabbing tools.
04/17/1984US4442907 Apparatus for stringing well pipe or casing
04/17/1984US4442903 System for installing continuous anode in deep bore hole
04/17/1984US4442892 Apparatus for stabbing and threading a safety valve into a well pipe
04/17/1984US4442736 Power pipe tong rotary plunger inserter
04/17/1984CA1165754A1 Drill steel centralizer
04/10/1984US4441749 Elevator for casing
04/10/1984US4441561 Method and apparatus for treating well formations
04/10/1984CA1165103A1 Power pipe tongs
04/03/1984US4440536 Method and device for positioning and guiding pipe in a drilling derrick
04/03/1984US4440262 Delayed deployment platform
04/03/1984US4440242 Device for producing boreholes in coal or the like
04/03/1984US4440220 System for stabbing well casing
04/03/1984CA1164670A1 Mine shaft liner
03/1984
03/27/1984US4439091 Pipe feeding system
03/27/1984US4438984 Drill steel guiding and centralizing mechanism
03/27/1984US4438910 Shock absorbing snubber for derrick hooks
03/27/1984US4438904 Drawworks
03/27/1984US4438902 Pipe string lift system
03/27/1984CA1164446A1 Drill steel guiding and centralizing mechanism
03/27/1984CA1164443A1 Well pipe connecting and disconnecting apparatus
03/27/1984CA1164442A1 Slip setting ring
03/27/1984CA1164441A1 Well casing jack mechanism
03/20/1984US4437709 Yoke apparatus
03/20/1984US4437524 Well drilling apparatus
03/20/1984US4437515 Positioning of well pipe jack in a rig
03/20/1984US4437363 Dual camming action jaw assembly and power tong
03/20/1984US4437218 Portable oil well turbine collar removing device
03/13/1984US4436455 Universally positionable low profile mine drilling machine and method
03/13/1984US4436048 Rotary transfer subsystems and tensioning assemblies for a process vessel
03/13/1984US4436002 In a pipe gripping tong
03/06/1984US4435108 Method of installing sub-sea templates
03/06/1984US4434971 Drilling rig drawworks hook load overspeed preventing system
03/06/1984US4434969 Rod and pipe pusher-puller apparatus
03/06/1984US4434860 Hoist pull down system for blast hole drill
03/01/1984WO1984000790A1 Pipe pickup and laydown machine
03/01/1984WO1984000789A1 Automated pipe equipment system
02/1984
02/28/1984US4433737 Water jet sediment probe