| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 02/21/2001 | CN2420417Y Portable casing head |
| 02/21/2001 | CN2420416Y Telescopic short piece |
| 02/21/2001 | CN2420415Y 拉力杆快速紧固接头 Pull the lever quick fastening tabs |
| 02/20/2001 | US6189632 Machined drill steel |
| 02/20/2001 | US6189631 Drilling tool with extendable elements |
| 02/17/2001 | CA2316131A1 Fiber optic monitoring of sand control equipment via tubing string |
| 02/15/2001 | WO2001011189A2 Apparatus for optimizing production of multi-phase fluid |
| 02/15/2001 | WO2001011184A1 Device and method for maintaining and guiding a riser, and method for transferring a riser onto a floating support |
| 02/15/2001 | WO2001011183A1 Floating support comprising a central cavity including a plurality of sections |
| 02/15/2001 | WO2001011182A1 Threaded pipe connection |
| 02/15/2001 | WO2001011181A1 Automated lubricant dispensing system and method for a horizontal directional drilling machine |
| 02/14/2001 | CN2419364Y Extending rod for vibrating head |
| 02/13/2001 | US6187443 Used as protective coating for any metallic or non metallic surface |
| 02/13/2001 | US6186249 Release equipment for a drill string |
| 02/13/2001 | US6186238 Assembly and method for the extraction of fluids from a drilled well within a geological formation |
| 02/13/2001 | US6186229 Downhole connector for production tubing and control line and method |
| 02/13/2001 | CA2222200C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222194C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222191C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222182C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222102C Spoolable coiled tubing completion system |
| 02/08/2001 | WO2001009543A1 Connector and method of use of the connector |
| 02/08/2001 | WO2001009481A1 Anti-rotation device for use with well tools |
| 02/08/2001 | WO2001009480A1 Anti-rotation device for use with well tools |
| 02/07/2001 | EP1073823A1 Method and device for linking surface to the seabed for a submarine pipeline installed at great depth |
| 02/07/2001 | CN2418249Y Disconnecting-connecting device for oil pump |
| 02/06/2001 | US6182776 Overburden drilling apparatus having a down-the-hole hammer separatable from an outer casing/drill bit unit |
| 02/06/2001 | US6182774 Bit torque limiting device |
| 02/06/2001 | US6182754 Helical scraper apparatus for a reciprocating sucker rod |
| 02/06/2001 | US6182750 Device for performing downhole functions |
| 02/03/2001 | CA2314834A1 Shank adapter |
| 02/02/2001 | CA2314779A1 Quick connector with a through bore |
| 02/01/2001 | WO2001007753A1 Method of creating a weld in a wellbore |
| 02/01/2001 | WO2001007748A2 Mechanism for dropping a plurality of balls into tubulars |
| 01/31/2001 | EP1071863A1 Coupling for drill pipes |
| 01/31/2001 | EP1032748A4 Flexible sinker bar assemblies |
| 01/31/2001 | CN2417285Y Hydraulic and diameter changeable type stabilizer |
| 01/30/2001 | US6179585 Modular plug connector for use with a submergible pumping system |
| 01/30/2001 | US6179524 Staggered fairing system for suppressing vortex-induced-vibration |
| 01/30/2001 | US6179269 Method and apparatus for installing a cable into coiled tubing |
| 01/30/2001 | US6179066 Stabilization system for measurement-while-drilling sensors |
| 01/24/2001 | EP1070906A1 Deep sea insulation material |
| 01/24/2001 | EP1070194A1 A mill and a method for milling |
| 01/24/2001 | EP1070193A1 Two-step, differential diameter wedge threaded connector |
| 01/24/2001 | EP1070192A1 Two-step, low torque wedge thread for tubular connector |
| 01/24/2001 | EP0956424B1 Method and device for driving bore holes, specially exploring and extraction drillings in the sea bottom |
| 01/24/2001 | CN2416225Y Shock absorber for hydraulic tandem drilling tool |
| 01/23/2001 | US6176646 Riser guide and support mechanism |
| 01/23/2001 | US6176524 Oil well pipe threaded joint |
| 01/23/2001 | US6176328 Drill pipe protection rings and method of using the same |
| 01/18/2001 | WO2001004520A1 Expandable joint connector |
| 01/18/2001 | WO2001004458A1 Hydraulic setting tool |
| 01/18/2001 | WO2001004455A1 Riser system |
| 01/18/2001 | WO2001004454A1 Device connecting the sea floor with the surface comprising a submarine pipeline attached to at least one floater |
| 01/18/2001 | DE10028015A1 Adding a liner to a borehole by inserting liner on a mandrel, injecting liquid between the liner and the borehole and expanding the liner onto the wall |
| 01/18/2001 | DE10015497A1 Coupling unit for connection pipes for boring work, to form boring column for insertion in bore hole; has coupling unit with elastic ring part between two screwing parts connected by coupling screw |
| 01/18/2001 | CA2378675A1 Riser system |
| 01/17/2001 | EP1068425A1 Drillstring with stabilisers for re-entering a primary wellbore |
| 01/17/2001 | EP1068424A1 Apparatus with coil springs and method for supporting a cable in a tubing |
| 01/17/2001 | EP1068423A1 Apparatus and method for mitigating wear in downhole tools |
| 01/16/2001 | US6174001 Two-step, low torque wedge thread for tubular connector |
| 01/16/2001 | US6174000 Screw joint for oil well piping |
| 01/16/2001 | US6173797 Rotary drill bits for directional drilling employing movable cutters and tandem gage pad arrangement with active cutting elements and having up-drill capability |
| 01/16/2001 | US6173788 Wellpacker and a method of running an I-wire or control line past a packer |
| 01/16/2001 | US6173786 Pressure-actuated running tool |
| 01/16/2001 | US6173781 Slip joint intervention riser with pressure seals and method of using the same |
| 01/12/2001 | CA2281237A1 Well tool |
| 01/11/2001 | WO2001002699A1 Method of deploying an electrically driven fluid transducer system in a well |
| 01/11/2001 | WO2001002696A1 Coupling device for a rock drill |
| 01/11/2001 | WO2001002695A1 A sleeve arrangement |
| 01/11/2001 | WO2001002694A1 Cable protector and support |
| 01/11/2001 | WO2001002693A1 Gas lift umbilical cable and termination assemblies therefor |
| 01/11/2001 | CA2377837A1 Coupling device for a rock drill |
| 01/11/2001 | CA2377829A1 A sleeve arrangement |
| 01/11/2001 | CA2377818A1 Gas lift umbilical cable and termination assemblies therefor |
| 01/10/2001 | EP1066450A2 Threaded assembly of metal tubes designed to contain a corrosive fluid |
| 01/10/2001 | EP1066449A1 Rotating connector with compensating unit |
| 01/10/2001 | EP1066448A1 Thread joint for percussive drilling, male and female portion for forming part of the joint and method of manufacturing a product having thread for forming part of a thread joint for percussive drilling |
| 01/10/2001 | CN2414186Y Friction reduced stabilizer |
| 01/10/2001 | CN2414185Y Wearing-resistant collar |
| 01/10/2001 | CN1279335A Protector for joint of sucker rod to prevent dropping off and wearing off |
| 01/09/2001 | US6170576 Mills for wellbore operations |
| 01/09/2001 | US6170570 Sinker bar for cable-operated well apparatus |
| 01/04/2001 | WO2000053887A3 Wellbore primary barrier and related systems |
| 01/04/2001 | WO2000043632A3 System with a compliant guide and method for inserting a coiled tubing into an oil well |
| 01/03/2001 | EP1064192A1 Mooring construction |
| 01/03/2001 | CN2413015Y Coupling for round thread connecting oil field casing and tubing |
| 01/03/2001 | CN2413014Y Special weighting rod |
| 01/03/2001 | CN1060244C Curved drilling apparatus |
| 01/02/2001 | US6168213 Connector and connection method |
| 01/02/2001 | US6167917 Drill pipe |
| 01/02/2001 | US6167915 Well pump electrical cable with internal bristle support |
| 01/02/2001 | US6167914 Orifice protector |
| 12/28/2000 | WO2000079239A1 Device related to labelling of tools, equipment and pipes |
| 12/28/2000 | WO2000079174A1 Swivel apparatus |
| 12/28/2000 | WO2000079091A1 Piloted drill barrel and method of using same |
| 12/27/2000 | EP1062529A1 Clamped receiver array using coiled tubing conveyed packer elements |
| 12/27/2000 | EP1062452A1 Flexible conduit for static use in a corrosive environment |
| 12/26/2000 | US6164392 Percussive drilling apparatus |
| 12/26/2000 | CA2216668C Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith |