| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 02/19/2004 | WO2004015238A1 Integral centraliser |
| 02/19/2004 | WO2004015237A2 Offshore well production riser |
| 02/19/2004 | WO2003036024A3 Method and system for in situ heating a hydrocarbon containing formation by a u-shaped opening |
| 02/19/2004 | WO2003008755A8 Wear resistant tubular connection |
| 02/19/2004 | US20040032088 Metal-to-metal sealing system |
| 02/19/2004 | US20040031606 High expansion anchor system |
| 02/19/2004 | US20040031532 Composite spoolable tube |
| 02/19/2004 | US20040031530 Bore-lining tubing |
| 02/18/2004 | EP1389260A1 Radially expandable tubular with supported end portion |
| 02/18/2004 | EP1222417B1 Threaded tubular joint proof to external pressure |
| 02/17/2004 | US6693554 Casing mounted sensors, actuators and generators |
| 02/17/2004 | US6691776 Downhole tool retention apparatus |
| 02/17/2004 | US6691775 System for accessing oil wells with compliant guide and coiled tubing |
| 02/17/2004 | CA2182535C One-trip window-milling system |
| 02/14/2004 | CA2438933A1 Potable well conversion device |
| 02/12/2004 | WO2004013462A1 An expandable metal liner for downhole components |
| 02/12/2004 | WO2004013451A1 Stabilizer for a rod, particularly a string of drilling rods |
| 02/12/2004 | US20040030501 Oilfield equipment identification method and apparatus |
| 02/12/2004 | US20040030016 Method for making a quasi-incompressible phase-change material with low thermal conductivity, and resulting product |
| 02/12/2004 | US20040029979 Corrosion inhibiting rinsing agent |
| 02/12/2004 | US20040028479 Vertically restrained centerwell SPAR |
| 02/12/2004 | US20040026131 Stabiliser device for rotary string of drill rods with reduced friction |
| 02/12/2004 | US20040026129 Drive system |
| 02/12/2004 | US20040026128 Drilling assembly with a steering device for coiled-tubing operations |
| 02/12/2004 | US20040026085 Cyclic check valve for coiled tubing |
| 02/12/2004 | US20040026083 Production riser with pre-formed curves for accommodating vessel motion |
| 02/12/2004 | US20040026082 Riser buoyancy system |
| 02/12/2004 | US20040026081 System for accommodating motion of a floating body |
| 02/12/2004 | US20040026080 Oil well platform; hole for receiving pin; rotating nozzles |
| 02/12/2004 | US20040026078 Remote operated tool string deployment apparatus |
| 02/12/2004 | DE10238082B3 Device used in the production of bored pile comprises a continuous screw having a screw surface with increased surface roughness facing in the conveying direction and extending over the screw length necessary for conveying material |
| 02/11/2004 | CN2603189Y Internal guiding type wearing-resistant oil sucket rod |
| 02/10/2004 | USRE38418 Dual member pipe joint for a dual member drill string |
| 02/10/2004 | US6690866 Optical fiber cable for use in harsh environments |
| 02/10/2004 | US6688410 Hydro-lifter rock bit with PDC inserts |
| 02/10/2004 | US6688409 Friction reducing tool and method for its use in a wellbore |
| 02/10/2004 | US6688396 Integrated modular connector in a drill pipe |
| 02/06/2004 | CA2436450A1 Remote operated tool string deployment apparatus |
| 02/05/2004 | WO2004011773A1 Expandable screen with auxiliary conduit |
| 02/05/2004 | US20040020659 Expandable metal liner for downhole components |
| 02/05/2004 | US20040020642 In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden |
| 02/04/2004 | EP1387036A2 Thread joint for tube |
| 02/04/2004 | EP1386054A2 Flexible joint for well logging instruments |
| 02/04/2004 | EP1385644A1 Equipment for external cleaning of tubes with fluid under pressure |
| 02/04/2004 | EP0928361B1 Safety joint |
| 02/04/2004 | CN2602150Y Double sealing oil pipe |
| 02/03/2004 | US6685397 Riser system |
| 02/03/2004 | US6685394 Partial shroud with perforating for VIV suppression, and method of using |
| 02/03/2004 | US6685393 Method for installing an undersea catenary riser |
| 02/03/2004 | US6685236 Helically wound expandable tubular insert |
| 02/03/2004 | US6684967 Side cutting gage pad improving stabilization and borehole integrity |
| 02/03/2004 | US6684965 Method and apparatus for operations in underground subsea oil and gas wells |
| 02/03/2004 | US6684954 Bi-directional explosive transfer subassembly and method for use of same |
| 02/03/2004 | US6684952 Inductively coupled method and apparatus of communicating with wellbore equipment |
| 02/03/2004 | US6684951 Sand screen with integrated sensors |
| 02/03/2004 | CA2192347C Hydraulic disconnection device |
| 01/29/2004 | WO2004010163A1 Marking of pipe joints |
| 01/29/2004 | WO2004010039A2 Protective sleeve for threaded connections for expandable liner hanger |
| 01/29/2004 | WO2004009950A1 Dual well completion system |
| 01/29/2004 | WO2004009948A1 Welded joints for rotary-vibratory drills having reduced stress |
| 01/29/2004 | US20040017081 Coupling tubulars |
| 01/29/2004 | US20040016574 Rock drilling apparatus |
| 01/29/2004 | US20040016573 Mining drill steels |
| 01/29/2004 | US20040016546 Method and apparatus for transferring material in a wellbore |
| 01/29/2004 | US20040016539 Expandable screen with auxiliary conduit |
| 01/29/2004 | CA2493775A1 Marking of pipe joints |
| 01/29/2004 | CA2493669A1 Dual well completion system |
| 01/29/2004 | CA2493086A1 Protective sleeve for threaded connections for expandable liner hanger |
| 01/28/2004 | EP1384851A2 Method and apparatus for installing casing in a well |
| 01/28/2004 | EP1383986A1 Well provided with flexible production tubing |
| 01/28/2004 | CN2601297Y Integrated sucker rod hooping centering guide |
| 01/28/2004 | CN2601296Y Centering ring limit retainer ring of sucker rod |
| 01/28/2004 | CN2601295Y Rotary pipe column oil draining anchor |
| 01/28/2004 | CN1470736A Underground tubular column centralising device |
| 01/28/2004 | CN1470735A Sucker polish rod manufacturing process |
| 01/27/2004 | US6682101 Wedgethread pipe connection |
| 01/27/2004 | US6681875 Guide tube of a drill string configured to facilitate unscrewing thereof from a member of the drill string |
| 01/27/2004 | US6681854 Sand screen with communication line conduit |
| 01/24/2004 | CA2435451A1 Method and apparatus for transferring material in a wellbore |
| 01/22/2004 | WO2004007895A2 Mud saver valve |
| 01/22/2004 | WO2004007893A2 Improving collapse resistance of tubing |
| 01/22/2004 | US20040013473 Protection of underwater elongate members |
| 01/22/2004 | US20040012200 Lower pull tube adapter |
| 01/22/2004 | US20040012198 Composite coiled tubing end connector |
| 01/22/2004 | US20040011565 Quick release drill bit for down-hole drills |
| 01/22/2004 | US20040011559 Stabilizer for use in a drill string |
| 01/22/2004 | US20040011532 Combined rod guide and rod rotator device |
| 01/22/2004 | US20040011528 Combined milling and scraping tool |
| 01/22/2004 | US20040011525 Method and apparatus for MWD formation testing |
| 01/22/2004 | US20040011518 Insert rod guide |
| 01/22/2004 | CA2731526A1 Subsea and landing string distributed temperature sensor system |
| 01/21/2004 | EP1382794A1 Step tube rod, and drilling machine |
| 01/21/2004 | EP1382793A1 Tube having thread orientation marks |
| 01/21/2004 | EP1381804A1 Threaded coupling with water exclusion seal system |
| 01/21/2004 | EP1381756A1 Method and device for drilling a hole and for securing an anchorage in a bore hole |
| 01/21/2004 | CN2600575Y Flexible connector for well rotation type rodless pumping unit |
| 01/21/2004 | CN2600574Y Compound flexible connector for bottom hole power drilling tool |
| 01/21/2004 | CN1469965A Drill string member |
| 01/21/2004 | CN1469964A A drilling tool used in horizontal drilling applications |
| 01/20/2004 | US6679526 Threaded joint for an oil well pipe |