| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/06/2000 | US6070670 Movement control system for wellbore apparatus and method of controlling a wellbore tool |
| 06/06/2000 | US6070668 Blowout preventer spanner joint with emergency disconnect capability |
| 06/06/2000 | US6070667 Lateral wellbore connection |
| 06/04/2000 | CA2291562A1 Heavy duty logging and perforating cablehead for coiled tubing |
| 06/02/2000 | WO2000031373A1 A method for mounting a casing shoe on a drilling apparatus |
| 06/02/2000 | WO2000031372A1 Tethered buoyant support for risers to a floating production vessel |
| 06/02/2000 | WO2000031371A1 Downhole tool with extendable members |
| 06/02/2000 | WO2000031169A1 Composite materials for use in buoyancy applications |
| 06/02/2000 | WO2000005612A9 Optical fiber cable for use in harsh environments |
| 05/31/2000 | EP0890014B1 Method and system for monitoring a characteristic of an earth formation in a well |
| 05/31/2000 | CN1053036C Joint of fibre reinforced compound meterial pipes and its compound material pipe |
| 05/30/2000 | US6068052 No tap tool for downhole reciprocating pumps |
| 05/30/2000 | CA2254982A1 Well casing protector |
| 05/30/2000 | CA2019421C Apparatus used for well drilling operations and method therefor |
| 05/25/2000 | WO2000029713A2 Method and apparatus for connecting a lateral branch liner to a main well bore |
| 05/25/2000 | WO2000029710A2 Wellbore flow control device |
| 05/25/2000 | WO2000029709A2 Rotary cone drill bit having a bit body with integral stabilizers |
| 05/24/2000 | CN1052775C Flexible/rigid rising pipe and its mounting method |
| 05/23/2000 | US6065543 Sealed lateral wellbore junction assembled downhole |
| 05/23/2000 | US6065540 Composite coiled tubing apparatus and methods |
| 05/23/2000 | US6065537 Rod guide with both high erodible wear volume and by-pass area |
| 05/23/2000 | US6065536 Apparatus for setting a liner in a well casing |
| 05/18/2000 | WO2000008367A3 Pipe connection |
| 05/17/2000 | EP1001132A2 Telescoping/release joint |
| 05/17/2000 | EP0871831B1 Subsea flexible pipe |
| 05/17/2000 | CN2378532Y Sucker rod nylon centralising device |
| 05/17/2000 | CN2378531Y High temperature and high pressure safety joint |
| 05/17/2000 | CN2378530Y Nylon centralising coupling for sucker rod |
| 05/17/2000 | CN2378529Y Single hydraulic prop four-purpose valve |
| 05/17/2000 | CN1253228A Full-balanced long-stroke pumping unit with flexible drive parts |
| 05/16/2000 | US6062905 Male pin connector |
| 05/16/2000 | US6062769 Enhanced steel catenary riser system |
| 05/16/2000 | US6062326 Casing shoe with cutting means |
| 05/16/2000 | US6062265 Conduit and continuous coiled tubing system and method of assembly thereof |
| 05/11/2000 | WO2000026502A1 Connector for an expandable tubing string |
| 05/11/2000 | WO2000026499A1 Method and apparatus for remote control of a tubing exit sleeve |
| 05/09/2000 | US6060662 Fiber optic well logging cable |
| 05/09/2000 | US6059661 Shaft alignment |
| 05/09/2000 | US6059051 Integrated directional under-reamer and stabilizer |
| 05/09/2000 | US6059042 Completions insertion and retrieval under pressure (CIRP) apparatus including the snaplock connector |
| 05/04/2000 | WO2000025029A1 Tool joint and drill pipe made therefrom |
| 05/04/2000 | WO2000024998A1 Pressurized slip joint for intervention riser |
| 05/04/2000 | WO1999057734A9 Flexible armored communication cable and method of manufacture |
| 05/03/2000 | EP0996811A1 Centralizer |
| 05/03/2000 | CN2376529Y Rotatable stabilizing wax scraper |
| 05/02/2000 | US6056327 High pressure hydraulic line connector |
| 05/02/2000 | US6056324 Threaded connector |
| 05/02/2000 | US6056073 Element of a rotating drill pipe string |
| 05/02/2000 | US6056051 Internal coiled tubing connection with torque capability |
| 04/27/2000 | WO2000005506A3 Annular fluid manipulation in lined tubular systems |
| 04/26/2000 | EP0995008A2 Tubing shoe |
| 04/26/2000 | EP0995007A1 Fastener for use in an oil tool and oil tool provided with such a fastener |
| 04/26/2000 | EP0871816B1 Release mechanism |
| 04/26/2000 | EP0815341B1 Dual bore riser |
| 04/26/2000 | CN2375756Y Drilling rod for petroleum geological prospecting |
| 04/26/2000 | CN2375755Y Telescopic drilling rod for delivering slurry |
| 04/25/2000 | US6053262 High-load hydraulic disconnect |
| 04/25/2000 | US6053250 Gravel pack apparatus |
| 04/25/2000 | US6053248 Methods of completing wells utilizing wellbore equipment positioning apparatus |
| 04/25/2000 | US6053244 Release mechanism |
| 04/20/2000 | WO2000022276A1 Drill rod |
| 04/20/2000 | WO2000022275A1 Control line connector |
| 04/20/2000 | WO2000004269A3 Subsea wellbore drilling system for reducing bottom hole pressure |
| 04/19/2000 | EP0994236A2 Indexing mechanism |
| 04/19/2000 | CN2374639Y Centering guide for sucker rod |
| 04/19/2000 | CN2374638Y Oil pipeline universal pilot |
| 04/18/2000 | US6050789 Pump-in-pipe |
| 04/18/2000 | US6050612 Composite assembly having improved load transmission between a flexible tubular pipe section and a rigid end fitting via respective annular coupling grooves |
| 04/18/2000 | US6050610 Stress reduction groove for tubular connection |
| 04/18/2000 | US6050354 Rolling cutter bit with shear cutting gage |
| 04/18/2000 | US6050353 Subassembly electrical isolation connector for drill rod |
| 04/18/2000 | US6050351 Drilling hole system for horizontal boreholes |
| 04/18/2000 | US6050350 Underground directional drilling steering tool |
| 04/18/2000 | US6050349 Hydraulic system for mud pulse generation |
| 04/18/2000 | US6050341 Downhole running tool |
| 04/18/2000 | CA2034001C Device for guiding a drilling tool within a well and for applying a hydraulic force to said tool |
| 04/13/2000 | WO2000020720A1 String of drill pipes for rotary percussion drilling, especially for simultaneous drilling |
| 04/13/2000 | DE19836389C1 Bohrvorrichtung mit Doppelschlagsystem Drilling device with dual shock system |
| 04/12/2000 | EP0991846A1 Stress reduction groove for tubular connection |
| 04/12/2000 | EP0991845A1 Earth formation surveying device |
| 04/12/2000 | CN2373554Y Centering guide for sucker rod |
| 04/11/2000 | US6049657 Marine pipeline heated with alternating current |
| 04/11/2000 | US6048136 Vortex induced vibration protection for deepwater drilling risers |
| 04/11/2000 | US6047997 Threaded connection with radiused surfaces |
| 04/11/2000 | CA2214230C Method of fabricating a rod guide and a rod guide/sucker combination |
| 04/07/2000 | CA2285500A1 Defect detection system for tubular goods |
| 04/06/2000 | WO2000019061A1 System, apparatus, and method for installing control lines in a well |
| 04/06/2000 | WO2000019060A1 Tubular filling system |
| 04/06/2000 | WO2000019057A1 Thread coupling for a drill string for percussive rock drilling |
| 04/06/2000 | WO2000019056A1 Thread coupling for a drill string for percussive rock drilling |
| 04/06/2000 | CA2345707A1 Thread coupling for a drill string for percussive rock drilling |
| 04/04/2000 | US6046404 Subsea control cable |
| 04/04/2000 | US6045611 Inserting a lithium gallium oxide (ligao2) seed crystal cut in a direction of an angle range of 30 degrees from a b-axis direction into a ligao2 melt, pulling seed crystal by the czochralski method, cutting the c-plane to obtain substrate |
| 04/04/2000 | US6045165 Threaded connection tubular goods |
| 04/04/2000 | US6044919 Rotary spade drill arrangement |
| 03/30/2000 | WO2000017480A1 Orienting and locking swivel and method |
| 03/30/2000 | WO2000017479A1 A reinforced flexible tubular pipe with conveying back of leak fluid |
| 03/29/2000 | EP0988438A1 Extension drilling system |
| 03/29/2000 | EP0988141A1 Method of welding generally rod-shaped structures of a fluorine-containing plastic material in a butt weld |
| 03/29/2000 | EP0824629A4 Drill string fitting |