| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 04/19/2007 | WO2007043862A1 Pipeline assembly comprising an anchoring device |
| 04/19/2007 | US20070087639 Buoyancy clamp and method of application |
| 04/19/2007 | US20070084616 Handheld rotary tool |
| 04/19/2007 | CA2624941A1 Pipeline assembly comprising an anchoring device |
| 04/18/2007 | EP1774133A1 Method and device to clamp control lines to tubulars |
| 04/18/2007 | EP1436482B1 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 04/18/2007 | CN2890317Y Improved shaft bar |
| 04/18/2007 | CN1948939A Ground drill |
| 04/18/2007 | CN1948699A Method of avoiding lateral resonance of drill |
| 04/18/2007 | CN1948697A Multifunction rotary disc speed reducing box |
| 04/18/2007 | CN1948538A Petroleum steel tube capable of anti hydrogen sulfide stress corrosion and its manufacturing method |
| 04/17/2007 | US7205262 Friction reducing composition and method |
| 04/17/2007 | US7204327 Reverse circulation directional and horizontal drilling using concentric drill string |
| 04/17/2007 | US7204324 Rotating systems associated with drill pipe |
| 04/17/2007 | US7204007 Method and apparatus for forming a mono-diameter wellbore casing |
| 04/17/2007 | CA2442891C Expandable connection for use with a swelling elastomer |
| 04/13/2007 | CA2563259A1 Expandable tubular member |
| 04/12/2007 | WO2007039688A1 Riser comprising rigid auxiliary ducts |
| 04/12/2007 | WO2007039686A1 Riser comprising auxiliary ducts which are mounted to journals |
| 04/12/2007 | WO2004083595A3 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 04/12/2007 | US20070081768 Downhole Fiber Optic Wet Connect and Gravel Pack Completion |
| 04/11/2007 | EP1451445B1 A device and a method for electrical coupling |
| 04/11/2007 | CN2888058Y Retractable drill rod and retractable long screw boring device |
| 04/11/2007 | CN2888057Y Well-bore sand-removal joint |
| 04/11/2007 | CN1944953A Method and apparatus for determining position in a pipe |
| 04/11/2007 | CN1944940A Hollow guide device for oil pumping rod and its making method |
| 04/11/2007 | CN1944712A Method for treating screw pump two-way protective coupling surface |
| 04/11/2007 | CN1309934C Expandable wellbore stabiliser |
| 04/11/2007 | CN1309929C Centraliser for an expandable tubular element in a wellbore |
| 04/11/2007 | CA2563039A1 Borehole generator |
| 04/10/2007 | US7201237 Stabilizing system and methods for a drill bit |
| 04/10/2007 | US7201223 Method and apparatus for forming a mono-diameter wellbore casing |
| 04/10/2007 | CA2536468C Expandable connector for borehole tubes |
| 04/10/2007 | CA2388126C Sleeve for stiffening an output shaft on a mill |
| 04/10/2007 | CA2349391C Wellbore flow control device |
| 04/10/2007 | CA2314114C Improved rock drill bit with neck protection |
| 04/05/2007 | WO2007038208A1 Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use |
| 04/05/2007 | WO2007037698A1 A device for cleaning and doping equipment for threads |
| 04/05/2007 | WO2007019292A3 Surface communication apparatus and method for use with string telemetry |
| 04/05/2007 | US20070075447 Bubble breaker assembly |
| 04/05/2007 | US20070074885 Hand-held power tool |
| 04/05/2007 | US20070074884 Shaft lock for power tool |
| 04/05/2007 | US20070074868 Wear resistant tubular connection |
| 04/05/2007 | CA2623976A1 A device for cleaning and doping equipment for threads |
| 04/04/2007 | EP1399644B1 Method for preparing wellbore casing for installation |
| 04/04/2007 | CN2886276Y Anti-compression and anti-bending hook took screw thread connection structure |
| 04/04/2007 | CN2886059Y Pipe string buffer |
| 04/04/2007 | CN2886058Y Hollow sucker rod centralizer |
| 04/04/2007 | CN2886057Y Deviation-rectification wear-reduction rotary joint for sucker rod |
| 04/04/2007 | CN2886056Y Dedicated connector for frozen pipe drilling rod |
| 04/04/2007 | CN1942653A Bubble breaker assembly |
| 04/04/2007 | CN1308607C Tubular threaded joint which is impervious to the external environment |
| 04/03/2007 | US7198118 Communication adapter for use with a drilling component |
| 04/03/2007 | US7198101 Downhole release joint |
| 04/03/2007 | CA2435208C Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| 04/03/2007 | CA2308180C Expandable downhole tubing |
| 04/03/2007 | CA2150735C Modulated bias unit for rotary drilling |
| 03/29/2007 | WO2007034242A1 Coiled tubing and power cables |
| 03/29/2007 | WO2007034142A1 Device for controlling slugging |
| 03/29/2007 | WO2006119022A3 Rotary steerable motor system for underground drilling |
| 03/29/2007 | US20070068706 Earth auger |
| 03/29/2007 | US20070068693 Combination drill |
| 03/29/2007 | US20070068692 Dead spindle chucking system with sliding sleeve |
| 03/29/2007 | US20070068671 Expandable wellbore assembly |
| 03/29/2007 | CA2624401A1 Coiled tubing and power cables |
| 03/28/2007 | EP1767742A2 System and method for fail-safe disconnect from a subsea well |
| 03/28/2007 | EP1766180A2 Intervention rod |
| 03/28/2007 | CN2883654Y Locking collar type disclocation device |
| 03/28/2007 | CN2883651Y Multiple spline keys driving drill collar shock absorber |
| 03/28/2007 | CN2883650Y Plastic-lined petroleum tube |
| 03/28/2007 | CN1938542A Threaded joint for steel pipe and process for producing the same |
| 03/28/2007 | CN1936265A Collar preset sucker rod and mfg. method |
| 03/27/2007 | US7195730 Method for making centralizers for centralising a tight fitting casing in a borehole |
| 03/27/2007 | US7195083 Three dimensional steering system and method for steering bit to drill borehole |
| 03/27/2007 | US7195073 Expandable tieback |
| 03/27/2007 | US7195072 Installation of downhole electrical power cable and safety valve assembly |
| 03/27/2007 | US7195069 Method and apparatus for backing off a tubular member from a wellbore |
| 03/27/2007 | US7194913 Apparatuses and methods for monitoring stress in steel catenary risers |
| 03/22/2007 | WO2007032687A1 Separating device |
| 03/22/2007 | US20070062715 Switch for power tool |
| 03/22/2007 | US20070062707 Apparatus and method to connect two parts without rotation |
| 03/21/2007 | EP1407111B1 Electrical conducting system |
| 03/21/2007 | EP1311739B1 Pipe assembly |
| 03/21/2007 | CN2881541Y On-line continuous displacement testing device single crank multiple range beam-pumping unit without stopping |
| 03/21/2007 | CN2881080Y 方钻杆回压阀 Kelly back pressure valve |
| 03/21/2007 | CN2881077Y Blind plate joint for full-bore completion |
| 03/21/2007 | CN2881065Y Metal centering guide of screw pump oil extraction rod |
| 03/21/2007 | CN2881064Y Linear bearing type device for preventing eccentric wear |
| 03/21/2007 | CN2881063Y Thick oil horizontal well hot extraction casing head |
| 03/21/2007 | CN2881062Y Drill rod circulation well washing apparatus |
| 03/21/2007 | CN2881061Y Drill rod with recorgnizable chip |
| 03/21/2007 | CN2881057Y Pressurized short joint of super-shallow horizontal well |
| 03/21/2007 | CN1934386A Double shoulder tool joint |
| 03/21/2007 | CN1934332A Method and system for starting up a pipeline |
| 03/21/2007 | CN1932232A Double-rotary sucker rod centering guide |
| 03/21/2007 | CN1306143C Column surface loading pipe type drill rod |
| 03/21/2007 | CN1306142C Sucker rod and sealing short joint assembly with improved sealing device and liquid hollow torque transmission |
| 03/20/2007 | US7193526 Downhole tool |
| 03/20/2007 | US7191832 Gravel pack completion with fiber optic monitoring |
| 03/20/2007 | US7191830 Annular pressure relief collar |