| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 01/30/2002 | CN1333112A Cutter with impact tool |
| 01/29/2002 | US6341652 Backflow prevention device |
| 01/29/2002 | CA2156982C Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods |
| 01/24/2002 | WO2002006716A1 Data transmission system for a string of downhole components |
| 01/24/2002 | WO2002006632A2 System and method for communicating information associated with a drilling component |
| 01/24/2002 | WO2002006625A1 Deploying a cable through a guide conduit in a well |
| 01/24/2002 | WO2002006593A1 Sand screen with integrated sensors |
| 01/24/2002 | WO2001042615A3 Drill rod |
| 01/24/2002 | WO2000063598A9 Scr top connector |
| 01/24/2002 | US20020007970 Well system |
| 01/24/2002 | US20020007948 Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions |
| 01/24/2002 | US20020007945 Composite coiled tubing with embedded fiber optic sensors |
| 01/23/2002 | EP1174584A2 Asymmetric diamond impregnated drill bit |
| 01/23/2002 | EP1174225A1 Percussion tool |
| 01/23/2002 | EP0792429B1 High-pressure fiber reinforced composite pipe joint |
| 01/22/2002 | CA2131456C Downhole tool for controlling the drilling course of a borehole |
| 01/22/2002 | CA2076026C Device for remotely operating an assembly comprising a bean/needle system, and use thereof in a drilling string |
| 01/17/2002 | WO2002004855A1 Connector for pipe sections with buoyancy cans |
| 01/17/2002 | WO2002004785A1 Well management system |
| 01/17/2002 | WO2002004782A1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 01/17/2002 | WO2002004781A1 Nonconductive centralizer |
| 01/17/2002 | US20020005282 Subsurface signal transmitting apparatus |
| 01/16/2002 | EP1172518A1 Marine riser |
| 01/16/2002 | CN1077970C Threaded joint for metal tubes with internal coating |
| 01/15/2002 | US6338504 Connector |
| 01/15/2002 | US6338390 Method and apparatus for drilling a subterranean formation employing drill bit oscillation |
| 01/15/2002 | US6338381 Heat exchange systems |
| 01/15/2002 | CA2244593C Dual stage rotary screw pump tool and method of pump flushing |
| 01/15/2002 | CA2142375C Cement head quick connector |
| 01/10/2002 | WO2002002904A1 Composite centraliser |
| 01/10/2002 | US20020003040 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 01/10/2002 | US20020003039 Submerged riser tensioner |
| 01/10/2002 | DE10031416A1 Reibschweissrohrverbindung und reibgeschweisstes Gesteinsbohrwerkzeug mit Bohrflüssigkeitskanal Reibschweissrohrverbindung and friction welded rock drilling with drilling fluid passageway |
| 01/09/2002 | EP1169547A1 Method of creating a wellbore in an underground formation |
| 01/09/2002 | EP1169538A1 Rotary steerable system for use in drilling deviated wells |
| 01/09/2002 | EP1169218A1 Floating offshore construction, and floating element |
| 01/09/2002 | EP1169148A1 Process for the manufacture of a cylindrical pipe |
| 01/09/2002 | EP1009908A4 Method and device for production of hydrocarbons |
| 01/09/2002 | CN2470527Y Anti-trip drive sucker-rod for screw pump |
| 01/09/2002 | CN1329962A Friction welded pipe connecting and friction welded rock bit with cutting fluid channel |
| 01/09/2002 | CN1077666C Guided drilling system with shock absorber |
| 01/08/2002 | US6336421 Floating spar for supporting production risers |
| 01/08/2002 | CA2238155C Coiled tubing supported electrical cable having indentations |
| 01/03/2002 | WO2002001102A1 Tubular threaded joint capable of being subjected to diametral expansion |
| 01/03/2002 | WO2002001038A1 Aluminium riser apparatus, system and method of manufacturing |
| 01/03/2002 | WO2001065062A3 Use of downhole high pressure gas in a gas-lift well |
| 01/03/2002 | WO2001064813A3 Conductive medium for openhole logging and logging while drilling |
| 01/03/2002 | US20020000320 Disconnect tool |
| 01/03/2002 | US20020000317 Communicating with devices positioned outside a liner in a wellbore |
| 01/03/2002 | US20020000316 Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
| 01/02/2002 | EP1167684A2 Tubing string for injection into wellbores |
| 01/02/2002 | EP1166947A1 Friction welded pipe joint and friction welded stone drill with coolant channel |
| 01/02/2002 | EP1165931A1 Stabiliser tool block wear pad assembly |
| 01/02/2002 | CN2469169Y Drilling bit with square drill rod for preventing splashing of mud |
| 01/02/2002 | CN2469168Y High performance oil pumping cable |
| 01/01/2002 | US6334633 Automatic lock for telescoping joint of a riser system |
| 01/01/2002 | US6334493 Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance |
| 12/27/2001 | WO2001098701A1 Composite pipe assembly and method for its preparation |
| 12/27/2001 | WO2001098632A1 Inductively coupled method and apparatus of communicating with wellbore equipment |
| 12/27/2001 | WO2001098622A1 Centraliser |
| 12/27/2001 | WO2001098621A2 Centraliser |
| 12/27/2001 | WO2001098620A1 Tubular threaded joint with reinforced stop |
| 12/27/2001 | WO2001098619A2 Drive system |
| 12/27/2001 | WO2001033029A3 Sub sea bottom hole assembly change out system and method |
| 12/26/2001 | CN2467783Y Holder and coupling-disconnecting device on underground pipeline drilling machine |
| 12/25/2001 | US6333699 Method and apparatus for determining position in a pipe |
| 12/25/2001 | US6332841 Floating cushion sub |
| 12/25/2001 | US6332503 Fixed cutter bit with chisel or vertical cutting elements |
| 12/25/2001 | US6332500 Anchor system for the transfer of fluids |
| 12/25/2001 | US6332499 Deployment tubing connector having internal electrical penetrator |
| 12/20/2001 | WO2001096618A1 Hardfacing alloy, methods, and products |
| 12/20/2001 | US20010052427 Three dimensional steerable system |
| 12/19/2001 | EP1163420A2 Rotary-type earth drilling bit, modular gauge pads therefor and methods of testing or altering such drill bits |
| 12/19/2001 | EP0851967B1 Single bore riser system |
| 12/19/2001 | CN2466338Y Safety buffer for downhole string |
| 12/19/2001 | CN2466337Y Reversing type sucker rod trip preventing device |
| 12/19/2001 | CN2466336Y Large pump butt connection device |
| 12/18/2001 | CA2006669C Process for integrating a metal end cap to a wound composite material tubing and so fabricated tubing |
| 12/13/2001 | WO2001094747A1 Deformable gravel pack |
| 12/13/2001 | US20010050173 Submersible pumps |
| 12/13/2001 | US20010050172 Method and apparatus for stimulation of multiple formation intervals |
| 12/13/2001 | US20010050105 Cementing head |
| 12/12/2001 | EP1162344A1 Friction reducing drillstring component |
| 12/12/2001 | EP1162037A1 Rotary percussion device for a drill string |
| 12/12/2001 | EP1161615A1 Fluid controlled adjustable down-hole tool |
| 12/12/2001 | CN2464927Y Rotary joint releaser |
| 12/12/2001 | CN2464926Y Lead seal cement pouring sleeve joint |
| 12/11/2001 | US6328343 Riser dog screw with fail safe mechanism |
| 12/11/2001 | US6328119 Adjustable gauge downhole drilling assembly |
| 12/11/2001 | US6328108 Adjustable sub-tension hanger |
| 12/06/2001 | WO2001092768A2 Multi-passage pipe assembly |
| 12/06/2001 | WO2001092684A1 Well production apparatus and method |
| 12/06/2001 | WO2001092680A1 Use of helically wound tubular structure in the downhole environment |
| 12/06/2001 | WO2001092679A1 Device for raise boring |
| 12/06/2001 | WO2000029709A9 Rotary cone drill bit having a bit body with integral stabilizers |
| 12/06/2001 | US20010049049 Annular pack |
| 12/06/2001 | US20010047888 Drill bit (a) |
| 12/06/2001 | US20010047886 Drill bit stabilizer device |
| 12/06/2001 | US20010047884 Directional drilling apparatus and method utilising eccentric stabiliser |
| 12/06/2001 | US20010047883 Downhole drilling apparatus |