Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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01/15/1985 | CA1181000A1 Insulating tubular conduit apparatus and method |
01/08/1985 | US4492115 Method and apparatus for measuring defects in ferromagnetic tubing |
01/08/1985 | CA1180692A1 Surface controlled blade stabilizer |
01/01/1985 | US4491187 Surface controlled auxiliary blade stabilizer |
12/27/1984 | CA1179939A Concentric tubing having bonded insulation with the annulus |
12/25/1984 | US4489963 Pipe joint |
12/25/1984 | US4489962 Swivel-joint for the base of a riser-pipe |
12/25/1984 | US4489793 Control method and apparatus for fluid delivery in a rotary drill string |
12/18/1984 | US4488605 Drill assembly for forming a hole |
12/18/1984 | US4488597 For use with a well-logging tool |
12/18/1984 | CA1179670A1 Blind shaft drilling |
12/18/1984 | CA1179669A1 Downhole vortex generator |
12/11/1984 | US4487434 Union-type coupling for marine drilling riser pipe |
12/11/1984 | US4487433 Anti-rotation coupling |
12/05/1984 | EP0127560A2 Threaded coupling comprising a ventable seal |
12/05/1984 | EP0127126A1 Sub for connection in a drill string |
12/05/1984 | EP0126829A1 Roof drill shock absorbing coupling |
12/05/1984 | EP0126740A1 A method employed in long-hole drilling and a drill rod system. |
12/04/1984 | US4485880 Direct drive for deep-well drilling |
12/04/1984 | US4485870 Method and apparatus for conducting wireline operations in a borehole |
12/04/1984 | US4485570 Apparatus for mounting a drilling machine on an excavator bucket |
12/04/1984 | CA1178944A1 Extension coupling for rock drilling equipment |
11/28/1984 | EP0126409A2 Boring tool |
11/27/1984 | US4484833 Sucker rod |
11/27/1984 | US4484785 Tubing protector |
11/27/1984 | US4484642 Reverse action auger |
11/27/1984 | US4484641 Tubulars for curved bore holes |
11/27/1984 | US4484633 Safety joint |
11/27/1984 | US4484628 Method and apparatus for conducting wireline operations in a borehole |
11/27/1984 | US4484627 Well completion for electrical power transmission |
11/22/1984 | WO1984004575A1 Pipe joint |
11/22/1984 | WO1984004561A1 Test tool for subsea blowout preventer stack |
11/21/1984 | EP0125993A1 Centralizer for a tool in a cased well, especially for deviated wells |
11/20/1984 | US4483662 Method for pumping a liquid from a well and apparatus for use therein |
11/20/1984 | US4483399 Method of deep drilling |
11/20/1984 | US4483396 Landfill gas well |
11/20/1984 | US4483395 Wire guard device for wells |
11/20/1984 | US4483394 Hydraulic power unit for measurement while drilling apparatus |
11/20/1984 | US4483393 Well logging apparatus and method for making same |
11/14/1984 | EP0125015A1 Control line protector for oil well tubing string |
11/13/1984 | US4482173 Hollow stem auger |
11/13/1984 | US4482014 In a well tool for use in a well bore |
11/13/1984 | CA1177819A1 Articulated coupling |
11/08/1984 | WO1984004352A1 Tubular connection with cylindrical and tapered stepped threads |
11/08/1984 | WO1984004351A1 Improved tubular connection |
11/08/1984 | WO1984004350A1 Tubular member thread protector |
11/07/1984 | EP0124468A1 Pin and box connector assembly |
11/07/1984 | EP0124304A1 Tubular joint |
11/07/1984 | EP0124266A2 Pressure regulating devices |
11/07/1984 | EP0124107A2 Fluid jet apparatus and method for cleaning tubular components |
11/06/1984 | US4480944 Offshore drilling of large diameter holes in rock formations |
11/06/1984 | US4480371 Method of making insulated tubular conduit |
11/06/1984 | CA1177389A1 Releasable latching apparatus |
10/31/1984 | EP0122932A1 Well logging sleeve and method for making same. |
10/30/1984 | US4479656 Means for sealing a gap around a conductor pipe in an offshore oil platform |
10/30/1984 | CA1177057A1 Fixed-contact stabilizer |
10/30/1984 | CA1177056A1 Containing skirt for drilling fluid |
10/30/1984 | CA1177055A1 Variable angle elbow fitting for deviated well drilling |
10/30/1984 | CA1176972A1 Logging method and apparatus using a sonde equipped with measuring pads |
10/24/1984 | EP0122839A1 Method and apparatus for conducting logging and/or work-over operations in a borehole |
10/24/1984 | EP0122823A1 Automatic compensating device for the magnetic effect of drill collars |
10/24/1984 | EP0122259A1 Pipe string tie-back connector |
10/23/1984 | US4478586 Buoyed moonpool plug for disconnecting a flexible flowline from a process vessel |
10/23/1984 | US4478278 Spacer for deep wells |
10/23/1984 | CA1176454A1 Applicator for spraying liquid chemical onto drill pipe |
10/17/1984 | EP0121669A2 Compensation device for insertion in a drill string for deep-well drilling tools |
10/16/1984 | US4477207 Marine riser buoyancy assembly |
10/16/1984 | US4477106 Concentric insulated tubing string |
10/16/1984 | US4477104 Releasable latching apparatus |
10/16/1984 | CA1176234A1 Intermediate weight drill string member |
10/09/1984 | US4475839 Sucker rod fitting |
10/09/1984 | CA1175645A1 Method and apparatus for explosive-joining of pipes |
10/03/1984 | EP0120091A1 Apparatus and method for logging wells while drilling |
10/02/1984 | US4474651 Oil well casing and tubing joint and production of same |
10/02/1984 | US4474488 Retainer system for roof-mine tool bit |
10/02/1984 | US4474381 Metal pipe joint seal ring with port to control erosion |
10/02/1984 | US4474244 For breaking the threaded connection between pipe |
10/02/1984 | US4474235 Well tool dislodgement apparatus |
10/02/1984 | US4474129 Riser pipe fairing |
10/02/1984 | CA1175412A1 Insulated drill collar gap sub assembly for a toroidal coupled telemetry system |
09/26/1984 | EP0119872A1 Method and apparatus for conducting wireline operations in a borehole |
09/26/1984 | EP0119375A1 Anchoring bolt drilling and setting device, especially for mining |
09/25/1984 | US4473323 Buoyant arm for maintaining tension on a drilling riser |
09/25/1984 | US4473245 Pipe joint |
09/25/1984 | US4473231 Dynamic seal for subterranean well |
09/25/1984 | US4473125 Insert for drill bits and drill stabilizers |
09/19/1984 | EP0118994A1 Cementing tool for wells |
09/18/1984 | US4472207 Method for manufacturing blank material suitable for oil drilling non-magnetic stabilizer |
09/18/1984 | CA1174590A1 Blast joint and protection element therefor |
09/11/1984 | US4470722 Marine production riser system and method of installing same |
09/11/1984 | US4470621 Flexible tubular connector |
09/11/1984 | US4470468 Offshore drilling of large diameter holes in rock formations |
09/11/1984 | US4470433 Hose |
09/11/1984 | US4470188 Method of mechanically prestressing a tubular apparatus |
09/11/1984 | CA1174279A1 Point gap assembly for a toroidal coupled telemetry system |
09/11/1984 | CA1174231A1 Rigid drill mandrell |
09/04/1984 | US4469181 Adjustable conductor guide assembly for sub-sea wells and methods and tools for adjustment thereof |
09/04/1984 | US4469174 Combination cementing shoe and basket |
09/04/1984 | CA1173875A1 Insulating pipe joint |
09/04/1984 | CA1173822A1 Apparatus for drilling straight portion of a deviated hole |