| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/27/1984 | US4439167 Shock absorber assembly |
| 03/27/1984 | US4438984 Drill steel guiding and centralizing mechanism |
| 03/27/1984 | US4438953 Tool joint bench mark |
| 03/27/1984 | US4438822 Clamp-on drill collar stabilizers |
| 03/27/1984 | CA1164499A1 Tubing joints, especially for the petroleum industry |
| 03/27/1984 | CA1164447A1 Screened hollow stem auger for use in well drilling and testing process |
| 03/27/1984 | CA1164446A1 Drill steel guiding and centralizing mechanism |
| 03/27/1984 | CA1164445A1 Weldable blade stabilizer |
| 03/27/1984 | CA1164444A1 Intermediate weight drill stem member |
| 03/27/1984 | CA1164336A1 Tool centralizer |
| 03/27/1984 | CA1164203A1 Methods and apparatus for testing roundness and straightness of pipes and tubing |
| 03/21/1984 | EP0103439A1 Methods of prestressing and methods of manufacturing tubular apparatus |
| 03/20/1984 | US4437791 For an offshore oilwell platform |
| 03/20/1984 | US4437218 Portable oil well turbine collar removing device |
| 03/14/1984 | EP0102672A1 Transmission system for soil examination |
| 03/13/1984 | US4436451 Self-standing marine riser |
| 03/13/1984 | US4436158 Releasable drill string device and method |
| 03/13/1984 | US4436118 Sleeved drill pipe |
| 03/07/1984 | EP0102274A2 Outrigger arm displacement control mechanism and method |
| 03/07/1984 | EP0102197A2 Downhole tool with replaceable tool sleeve sections |
| 03/06/1984 | US4434863 Well tool |
| 03/06/1984 | US4434811 Coupling seal and method of assembly |
| 03/06/1984 | CA1163214A1 Insulated pipe joint and method for producing same |
| 03/06/1984 | CA1163212A1 Flexible pipe |
| 03/06/1984 | CA1163185A1 Underground radial pipe network and a method of installing same |
| 02/28/1984 | US4434125 Forming annulus, sealing, filling with exothermically setting adhesive, and heating |
| 02/28/1984 | US4433862 Pipe joint |
| 02/28/1984 | US4433725 Adjustable spacer with rotational lock |
| 02/28/1984 | US4433639 Application for spraying liquid chemical onto drill pipe |
| 02/21/1984 | US4432667 Insulation of tunnel linings |
| 02/21/1984 | US4432662 Composite sucker rod and method of manufacturing same |
| 02/21/1984 | US4432143 For use in an earth borehole |
| 02/16/1984 | WO1984000576A1 Tapered threaded member with guide |
| 02/15/1984 | EP0100708A2 Method and device for seismic signal acquisition in a bore hole |
| 02/15/1984 | EP0100437A2 A single-pass notching and drilling tool and method of drilling a blast hole therewith |
| 02/14/1984 | US4431219 Replaceable tubular connector |
| 02/14/1984 | US4431069 Method and apparatus for forming and using a bore hole |
| 02/14/1984 | US4431067 Wireline protector with clamping mechanism |
| 02/14/1984 | US4431059 Vertically moored platform anchoring |
| 02/14/1984 | US4431054 Seal assembly releasing tool |
| 02/14/1984 | US4430787 Sucker rods with improved coupling capability and method |
| 02/08/1984 | EP0100259A1 Snap action device for tubes or casings, especially for offshore drilling |
| 02/08/1984 | EP0100230A2 Earth Boring Apparatus |
| 02/07/1984 | US4430018 End fitting for oil well sucker rods |
| 02/07/1984 | US4429904 Self-aligning connector |
| 02/07/1984 | CA1161883A1 Threaded joint with high gas-leak-tightness for oil and gas well pipe |
| 02/07/1984 | CA1161830A1 Guiding device for percussion drills |
| 02/01/1984 | EP0099805A1 Assembly for an electrical connection through a conduit made up of several elements |
| 01/31/1984 | US4428626 Stabilizer |
| 01/31/1984 | US4428443 Shock absorbing tool for connection to a drill column |
| 01/31/1984 | US4428441 Method of drilling a deviated wellbore |
| 01/31/1984 | US4428422 Device provided with retractable arms for the anchoring of an instrument in a cavity |
| 01/31/1984 | US4428108 Method of forming encapsulated depleted uranium oil field tubular member |
| 01/25/1984 | EP0099293A2 Locking process and device for threaded joints |
| 01/24/1984 | US4427080 Apparatus for preventing differential sticking in wells |
| 01/17/1984 | US4426105 Joints for pipes, particularly intended for the oil industry |
| 01/17/1984 | US4425966 Borehole centralizer with positively indexable contact arms |
| 01/11/1984 | EP0097879A2 Drilling machine |
| 01/10/1984 | US4424988 Frangible pipe coupling |
| 01/10/1984 | US4424859 Multi-channel fluid injection system |
| 01/10/1984 | CA1160214A1 Shank adaptor for rock-drilling machines |
| 01/03/1984 | US4423984 Marine compliant riser system |
| 01/03/1984 | US4423983 For conducting well fluids between subsea manifold and floating platform |
| 01/03/1984 | US4423889 Well-tubing expansion joint |
| 01/03/1984 | US4423783 Method for plugging a well and bridge plug |
| 01/03/1984 | US4423778 Concentric tubing separation joint |
| 01/03/1984 | US4423774 In a well tool |
| 01/03/1984 | CA1159865A1 Well-tubing expansion joint |
| 12/28/1983 | EP0096956A1 Fairing for pipes |
| 12/27/1983 | US4422801 Buoyancy system for large scale underwater risers |
| 12/27/1983 | US4422794 Coupling for earth boring units |
| 12/27/1983 | US4422508 Methods for pulling sucker rod strings |
| 12/27/1983 | US4422504 Protective clamp assembly |
| 12/27/1983 | CA1159442A1 Dual-wall drill pipe |
| 12/20/1983 | US4421183 Flexible drive apparatus for boring lateral bore holes from well |
| 12/20/1983 | US4420865 Method for rethreading tubular members |
| 12/20/1983 | CA1158976A1 Flanging system for suspending casing and tubing columns for high pressure oil or gas wells |
| 12/07/1983 | EP0095488A1 Drill collar |
| 12/06/1983 | US4418754 Method and apparatus for gravel packing a zone in a well |
| 11/30/1983 | EP0095134A2 Method and apparatus for drilling |
| 11/29/1983 | CA1157849A1 Drill string splined resilient tubular telescopic joint for balanced load drilling of deep holes |
| 11/23/1983 | EP0094509A2 Coupling for tubing or casing and method of assembly |
| 11/22/1983 | US4416494 Apparatus for maintaining a coiled electric conductor in a drill string |
| 11/22/1983 | US4416476 Intermediate weight drill stem member |
| 11/22/1983 | US4416473 Flexible joint for connection of two pipes |
| 11/22/1983 | US4416330 Side pocket mandrel |
| 11/22/1983 | US4416329 Oil well setup and pumping apparatus |
| 11/22/1983 | CA1157461A1 Roof bit coupling |
| 11/15/1983 | US4415206 Drill section and method of hydraulically mining mineral formations |
| 11/15/1983 | US4415186 Flanging system for suspending casting and tubing columns for high pressure oil or gas wells |
| 11/15/1983 | US4415184 High temperature insulated casing |
| 11/15/1983 | US4415047 Downhole case driving apparatus for impact drills |
| 11/15/1983 | US4415045 Offshore drilling of large diameter holes in rock formations |
| 11/15/1983 | US4415030 Casing re-entry apparatus for use in inclined oil and gas boreholes |
| 11/15/1983 | US4415005 Pipe thread protector device |
| 11/15/1983 | CA1157008A1 Roller belleville spring damper |
| 11/15/1983 | CA1157005A1 Tool for drilling curved sections of well holes |
| 11/09/1983 | EP0093561A2 Coupling device |
| 11/08/1983 | US4413689 Plural-part earth bit, and an improved bit head therefor |
| 11/08/1983 | US4413682 Method and apparatus for installing a cementing float shoe on the bottom of a well casing |