| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 07/07/2004 | EP1434924A1 Thread joint |
| 07/07/2004 | EP1169218B1 Floating offshore construction, and floating element |
| 07/07/2004 | CN1511218A Radially expandable tubular with supported end portion |
| 07/06/2004 | US6759968 Method and apparatus for determining position in a pipe |
| 07/06/2004 | US6758278 Forming a wellbore casing while simultaneously drilling a wellbore |
| 07/06/2004 | US6758277 System and method for fluid flow optimization |
| 07/06/2004 | CA2326532C Rotating connector with compensating unit |
| 07/06/2004 | CA2316126C Well pump electrical cable with internal bristle support |
| 07/01/2004 | WO2004055319A1 An assembly for protecting a flexible tube against wear by friction |
| 07/01/2004 | WO2004055316A2 System and method for fail-safe disconnect from a subsea well |
| 07/01/2004 | WO2002075164A8 Flexible joint for well logging instruments |
| 07/01/2004 | US20040126192 Internal beam buoyancy system for offshore platforms |
| 07/01/2004 | US20040124015 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 07/01/2004 | US20040124010 Drilling with concentric strings of casing |
| 07/01/2004 | US20040124008 Subsea wellbore drilling system for reducing bottom hole pressure |
| 07/01/2004 | DE10355079A1 Werkzeugstrang, Vorrichtung zum Isolieren von Signalen und Verfahren zum Verwenden eines Werkzeugstrangs Tool string apparatus for isolating signals, and method for using a tool string |
| 06/30/2004 | EP1434063A2 Drill string telemetry system and method |
| 06/30/2004 | EP1432886A1 Disconnect for use in a wellbore |
| 06/30/2004 | CN2622378Y Distance increasing device for sucker rod |
| 06/30/2004 | CN2622377Y Contact real type thermal stress compensator |
| 06/30/2004 | CN1509387A threaded joint for steel pipe |
| 06/30/2004 | CN1509386A Threaded joint for steel pipe and surface treatment method |
| 06/30/2004 | CN1508380A Ultrashort curvature leve well drilling and completion method and apparatus thereof |
| 06/29/2004 | US6755595 Riser impact protection |
| 06/29/2004 | US6755444 Slim-type threaded joint for oil well pipes |
| 06/29/2004 | US6755253 Pressure control system for a wet connect/disconnect hydraulic control line connector |
| 06/24/2004 | WO2004053935A2 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 06/24/2004 | WO2004053287A2 Bore hole tool assembly, bearing system for use in such a bore hole tool assembly, and method of designing such a bore hole tool assembly |
| 06/24/2004 | WO2004053286A2 System for use in a bore hole for axially coupling a tubular end and a mandrel, and a connecting assembly for such a system |
| 06/24/2004 | WO2004053284A2 Isolated electrical connection in a drill string |
| 06/24/2004 | WO2003048501A3 Downhole assembly releasable connection |
| 06/24/2004 | US20040119607 Drill string telemetry system and method |
| 06/24/2004 | US20040118590 Conductor system |
| 06/24/2004 | US20040118569 Tubular members and threaded connections for casing drilling and method |
| 06/24/2004 | US20040118565 Bi-directional thruster pig apparatus and method of utilizing same |
| 06/24/2004 | DE10258223A1 Drill string, for conveying crude oil from underwater regions, comprises fiber-reinforced plastic pipes mechanically joined to each other with drill head fixed to first pipe for insertion into borehole |
| 06/24/2004 | DE10258221A1 Production of borehole in underwater region involves initiating formation of borehole using drill string comprising pipes, and replacing section of drill string with component of same length |
| 06/24/2004 | DE10258220A1 Production of borehole, for conveying crude oil from underwater regions, involves using drill string comprising pipes made from light high strength material and drill head |
| 06/23/2004 | EP1430200A1 Wellbore system for simultaneous drilling and production |
| 06/23/2004 | CN2621212Y Fixed coupling for sucker rod centralizer |
| 06/23/2004 | CN2621211Y Inserted centralizing pumping rod sub-coupling |
| 06/23/2004 | CN2621210Y 不锈钢防腐金属管 Stainless steel corrosion of metal pipes |
| 06/22/2004 | US6752436 Fatigue-resistant threaded bevelled tubular element |
| 06/22/2004 | US6752397 Redundant metal-metal seal |
| 06/22/2004 | US6752213 Floating offshore construction, and floating element |
| 06/22/2004 | US6752211 Method and apparatus for multilateral junction |
| 06/22/2004 | US6752207 Apparatus and method for alternate path system |
| 06/22/2004 | CA2440176C Blast hole drill pipe gripping mechanism |
| 06/22/2004 | CA2299683C Wellhead isolation tool and method of using same |
| 06/18/2004 | CA2414822A1 Hydrogen-induced cracking and sulphide stress cracking resistant steel alloy |
| 06/17/2004 | WO2004051129A2 Expandable composite tubulars |
| 06/17/2004 | WO2004051052A1 Subsea structure and methods of construction and installation thereof |
| 06/17/2004 | WO2004051051A1 Subsea structure and methods of construction and installation thereof |
| 06/17/2004 | WO2004051050A1 Insulative gap sub assembly and methods |
| 06/17/2004 | WO2003053125A3 System and method for lessening impact on christmas trees during downhole operations involving christmas trees |
| 06/17/2004 | US20040114463 Clamp mechanism for in-well seismic station |
| 06/17/2004 | US20040113734 High density plastic tubing with included power transmission cabling for downhole use in petroleum industry |
| 06/17/2004 | US20040113428 Expandable connection |
| 06/17/2004 | US20040113427 Assembly of hollow torque transmitting sucker rods and sealing nipple with improved seal and fluid flow |
| 06/17/2004 | US20040113426 Riser connector |
| 06/17/2004 | US20040112646 Steel; rotation drilling; in situ cementing casing |
| 06/17/2004 | US20040112644 Drill string shutoff valve |
| 06/17/2004 | US20040112643 Drill string shutoff valve |
| 06/17/2004 | US20040112641 Drill string shutoff valve |
| 06/17/2004 | US20040112639 Drilling with casing |
| 06/17/2004 | US20040112615 Electrical, rotary-percussion hand-held tool |
| 06/17/2004 | US20040112603 Apparatus and method of drilling with casing |
| 06/17/2004 | US20040112592 Dual diameter and rotating centralizer/sub |
| 06/17/2004 | US20040112589 Mono-diameter wellbore casing |
| 06/16/2004 | CN2620757Y Well pipe connecting disk |
| 06/16/2004 | CN1505728A Well provided with flexible production tubing |
| 06/15/2004 | US6749031 Drilling system |
| 06/15/2004 | US6749030 Integrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole |
| 06/15/2004 | US6749026 Method of forming downhole tubular string connections |
| 06/15/2004 | US6749020 Well screen two step coupled connector structure |
| 06/15/2004 | US6749018 Bit run and retrieval wear bushing and tool |
| 06/15/2004 | CA2214877C Dual bore riser |
| 06/13/2004 | CA2640104A1 Apparatus and method of drilling with casing |
| 06/10/2004 | WO2004048745A1 Steerable drill bit arrangement |
| 06/10/2004 | WO2004048744A2 Apparatus and method for drilling and reaming a borehole |
| 06/10/2004 | WO2004027786A9 Protective sleeve for expandable tubulars |
| 06/10/2004 | WO2004015237A3 Offshore well production riser |
| 06/10/2004 | US20040108626 Expandable composite tubulars |
| 06/10/2004 | US20040108144 Drilling device comprising a rotational drive |
| 06/10/2004 | US20040108119 Wire lock expandable connection |
| 06/10/2004 | US20040108114 Providing electrical isolation for a downhole device |
| 06/10/2004 | CA2505556A1 Steerable drill bit arrangement |
| 06/09/2004 | EP1015802A4 Ultra high torque double shoulder tool joint |
| 06/09/2004 | DE20301946U1 Teleskopierbares Bohrgestänge Telescopic drill string |
| 06/09/2004 | CN2620075Y Oil well polish rod rolling centralising pressure storage sealer |
| 06/09/2004 | CN2620074Y Motion prevention centralising device |
| 06/09/2004 | CN1503875A Method and device for drilling a hole and for securing an anchorage in a bore hole |
| 06/09/2004 | CN1502785A Oil-increasing pup joint |
| 06/08/2004 | US6747570 Method for preventing fracturing of a formation proximal to a casing shoe of well bore during drilling operations |
| 06/08/2004 | US6746213 Pad plunger assembly with concave pad subassembly |
| 06/08/2004 | US6746182 Keel joint arrangements for floating platforms |
| 06/08/2004 | US6746057 Threaded joint for steel pipes having improved galling resistance and rust-preventing properties |
| 06/08/2004 | US6745854 Electrically sequenced tractor |
| 06/08/2004 | US6745853 Methods and apparatus for open hole drilling |
| 06/08/2004 | US6745843 Base-pipe flow control mechanism |