| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 04/29/2004 | US20040079531 Disconnect check valve mechanism for coiled tubing |
| 04/29/2004 | US20040079525 Drill pipe having an internally coated electrical pathway |
| 04/29/2004 | US20040079524 Toroidal choke inductor for wireless communication and control |
| 04/28/2004 | EP1413708A1 Thrust transmitting element for driving pipes |
| 04/28/2004 | EP1412608A1 Downhole release joint |
| 04/28/2004 | EP1412605A2 Improved stabilizer for use in a drill string |
| 04/28/2004 | EP1133615B1 Tethered buoyant support for risers to a floating production vessel |
| 04/28/2004 | EP1056968A4 Threaded connection for internally clad pipe |
| 04/28/2004 | EP0988438B1 Extension drilling system |
| 04/27/2004 | US6727828 Pressurized system for protecting signal transfer capability at a subsurface location |
| 04/27/2004 | US6725946 Excavation apparatus |
| 04/27/2004 | US6725939 Expandable centralizer for downhole tubulars |
| 04/27/2004 | US6725936 Method for drilling a plurality of offshore underwater wells |
| 04/27/2004 | US6725919 Forming a wellbore casing while simultaneously drilling a wellbore |
| 04/27/2004 | CA2054919C Drill string component |
| 04/22/2004 | WO2004033850A1 Methods and apparatus for a subsea tie back |
| 04/22/2004 | WO2004033848A1 A riser and method of installing same |
| 04/22/2004 | WO2004033847A1 Apparatus and method for transmitting a signal in a wellbore |
| 04/22/2004 | WO2004033840A2 Methods and apparatus for open hole drilling |
| 04/22/2004 | WO2003016671A3 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 04/22/2004 | US20040076478 Marine riser tower |
| 04/22/2004 | US20040075275 Slim-type threaded joint for oil well pipes |
| 04/22/2004 | US20040074649 Method of drilling and operating a subsea well |
| 04/22/2004 | US20040074648 Marine riser tower |
| 04/22/2004 | CA2501315A1 Methods and apparatus for a subsea tie back |
| 04/22/2004 | CA2499331A1 Apparatus and method for transmitting a signal in a wellbore |
| 04/21/2004 | EP1411207A2 Sampling isolator |
| 04/21/2004 | EP1409908A1 Control cable |
| 04/21/2004 | EP1409837A1 Releasable connector |
| 04/21/2004 | EP0817901B1 Dual-member pipe joint for a dual member drill string |
| 04/21/2004 | CN1491313A Seashore and seabed connecting apparatus for laying underwater pipelines in great depth |
| 04/20/2004 | US6722706 Thread from with multifacited flanks |
| 04/20/2004 | US6722559 Apparatus and method for mitigating wear in downhole tools |
| 04/20/2004 | US6722453 Stabilized downhole drilling motor |
| 04/20/2004 | US6722425 Tubular filling system |
| 04/15/2004 | US20040072485 Buoyancy control systems for tubes |
| 04/15/2004 | US20040072064 Power tool with battery pack ejector |
| 04/15/2004 | US20040071497 Rod linkage |
| 04/15/2004 | US20040069533 Pneumatic rock-boring device and method for starting such a device |
| 04/15/2004 | US20040069531 Earth boring apparatus and method offering improved gage trimmer protection |
| 04/15/2004 | US20040069499 Mono-diameter wellbore casing |
| 04/15/2004 | US20040069498 Method of jointing and running expandable tubulars |
| 04/15/2004 | US20040069496 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling |
| 04/14/2004 | EP1407115A1 Connecting an anchoring rod to a drilling tool |
| 04/14/2004 | EP1407111A1 Electrical conducting system |
| 04/14/2004 | EP1407110A1 Steerable rotary drill bit assembly with pilot bit |
| 04/14/2004 | EP1153193B1 Directional drilling apparatus |
| 04/14/2004 | EP1086292B1 A drilling tool |
| 04/14/2004 | CN2611569Y Reducing stabilizer for drilling pressure control |
| 04/13/2004 | US6719479 Breech lock wireline connector |
| 04/13/2004 | US6719058 Multiple seal design for composite risers and tubing for offshore applications |
| 04/13/2004 | US6719044 Wear bushing running and retrieval tools |
| 04/08/2004 | WO2004029403A1 Drill rod and method in order to manufacture the same |
| 04/08/2004 | WO2004029402A1 Combined reamer and drill bit stabiliser |
| 04/08/2004 | WO2004028895A1 Protection means for a flexible riser |
| 04/08/2004 | WO2004028892A2 Underwater enclosure apparatus and method for constructing the same |
| 04/08/2004 | WO2003076760A3 Steerable soil penetration system |
| 04/08/2004 | WO2002075164B1 Flexible joint for well logging instruments |
| 04/08/2004 | US20040066038 Submersible pump drop pipe and casing assembly connection and method of manufacture |
| 04/08/2004 | US20040065474 Methods and apparatus for open hole drilling |
| 04/08/2004 | US20040065447 Completion apparatus and methods for use in wellbores |
| 04/07/2004 | EP1405983A2 Drilling system including eccentric adjustable diameter blade stabilizer |
| 04/07/2004 | EP1404945A1 Expandable wellbore stabiliser |
| 04/07/2004 | EP1404943A1 Wear sleeve |
| 04/07/2004 | EP1404942A1 Riser system for water intake |
| 04/07/2004 | CN2610070Y Pull-up down-pass tubing anchor |
| 04/07/2004 | CN2610067Y Tool joint |
| 04/07/2004 | CN2610066Y Anti-scaling and anti-corrosion oil tube |
| 04/07/2004 | CN2610065Y Self-setting tubing anchor |
| 04/07/2004 | CN2610064Y Work string |
| 04/07/2004 | CN2610063Y Underground drill string filter |
| 04/07/2004 | CN2610062Y Suspesion pressture testing device |
| 04/07/2004 | CN2610061Y Kelly bar made of steamless steel pipe |
| 04/07/2004 | CN1488051A Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| 04/06/2004 | US6717501 Downhole data transmission system |
| 04/06/2004 | US6715550 Controllable gas-lift well and valve |
| 04/06/2004 | US6715545 Transition member for maintaining for fluid slurry velocity therethrough and method for use of same |
| 04/06/2004 | US6715542 Tubular filling system |
| 04/06/2004 | CA2211883C Apparatus for establishing branch wells from a parent well |
| 04/04/2004 | WO2004027207A1 Pipe centralizer and method of forming |
| 04/03/2004 | CA2437939A1 Hybrid tension-leg riser |
| 04/01/2004 | WO2004027786A2 Protective sleeve for expandable tubulars |
| 04/01/2004 | WO2004027202A2 Inner riser adjustable hanger and seal assembly |
| 04/01/2004 | WO2004007893A3 Improving collapse resistance of tubing |
| 04/01/2004 | US20040062612 Protective element for a riser segment |
| 04/01/2004 | US20040060740 Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium |
| 04/01/2004 | US20040060706 Expandable connection for use with a swelling elastomer |
| 04/01/2004 | US20040060703 Controlled downhole chemical injection |
| 04/01/2004 | US20040060699 Torque reducing tubing component |
| 04/01/2004 | CA2499246A1 Pipe centralizer and method of forming |
| 03/31/2004 | EP1403464A2 Expandable tubular connection |
| 03/31/2004 | EP1402601A2 Conductor system |
| 03/31/2004 | CN2608673Y Oil sucker rod strengthening apparatus |
| 03/31/2004 | CN2608672Y Oil pumping rod flexible connecting device |
| 03/31/2004 | CN2608669Y Pump pressure controlling reducing diameter stabilizer |
| 03/30/2004 | US6712559 Seafloor-surface linking device comprising a stabilizing element |
| 03/30/2004 | US6712401 Tubular threaded joint capable of being subjected to diametral expansion |
| 03/30/2004 | US6712163 Rock drilling tool |
| 03/30/2004 | US6712158 Apparatus and method for coring and/or drilling |
| 03/30/2004 | US6712150 Partial coil-in-coil tubing |