| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 11/17/2004 | CN2656605Y Sucker rod shock absorber |
| 11/17/2004 | CN2656604Y Slurry rotary joint |
| 11/17/2004 | CN2656603Y Anti-corrosion wear-proof sucker polish rod |
| 11/17/2004 | CN2656602Y 摩擦焊接抽油杆 Friction welding rod |
| 11/17/2004 | CN2656601Y 摩擦焊接抽油杆 Friction welding rod |
| 11/16/2004 | US6817633 Tubular members and threaded connections for casing drilling and method |
| 11/16/2004 | US6817423 Wall stimulation tool and method of using same |
| 11/16/2004 | US6817421 Blowout preventer protector and method of using same |
| 11/16/2004 | US6817412 Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
| 11/16/2004 | US6817410 Intelligent well system and method |
| 11/16/2004 | US6817257 Apparatus for the remote measurement of physical parameters |
| 11/11/2004 | WO2004097155A2 Casing with isolated annular space |
| 11/11/2004 | US20040224857 particles of CaF2, etc. become plastic and allow connection of a joint while achieving the desired coefficient of friction |
| 11/11/2004 | US20040223812 Method and apparatus for replacement of underground pipe |
| 11/11/2004 | US20040221997 Methods and apparatus for wellbore construction and completion |
| 11/11/2004 | US20040221995 Loaded transducer for downhole drilling components |
| 11/10/2004 | CN2655211Y Load sensor for testing sucker rod pressure of pumping unit |
| 11/10/2004 | CN2654840Y Non rotary jacket type stabilizer |
| 11/10/2004 | CN2654839Y Oil pumping rod universal coupler |
| 11/10/2004 | CN2654838Y Replacing of pipe column under three layer oil extraction without moving pipe column |
| 11/10/2004 | CN1544794A Long cone gapless fast connecting device |
| 11/09/2004 | US6814167 Boring device and boring method |
| 11/09/2004 | CA2229091C Methods of completing a subterranean well and associated apparatus |
| 11/09/2004 | CA2071151C Fluid actuated wellbore tool system |
| 11/06/2004 | CA2466139A1 Downhole tool and method for fracturing a subterranean well formation |
| 11/04/2004 | WO2004095475A2 Control line protector |
| 11/04/2004 | WO2004094783A1 Well string assembly |
| 11/04/2004 | WO2004094678A2 Hardfacing alloy, methods, and products |
| 11/04/2004 | US20040219831 Data transmission system for a downhole component |
| 11/04/2004 | US20040218981 Seafloor-surface connecting installation of a submarine pipeline installed at great depth |
| 11/04/2004 | US20040217880 Method and apparatus for performing diagnostics in a wellbore operation |
| 11/04/2004 | US20040216928 Telescopable boring rod mechanism |
| 11/04/2004 | US20040216892 Drilling with casing latch |
| 11/04/2004 | US20040216887 Device and a method for disconnecting a tool from a pipe string |
| 11/04/2004 | US20040216879 Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring |
| 11/04/2004 | US20040216873 Radially adjustable downhole devices & methods for same |
| 11/04/2004 | US20040216866 Perforating gun |
| 11/04/2004 | CA2523121A1 Control line protector |
| 11/03/2004 | EP1473437A2 Perforating gun |
| 11/03/2004 | EP1472483A1 Conduit pipe |
| 11/03/2004 | EP1472432A1 Method and arrangement by a workover riser connection |
| 11/03/2004 | EP1472024A1 Protective sleeve for threaded connections for expandable liner hanger |
| 11/03/2004 | EP1153196B1 Casing mounted sensors |
| 11/03/2004 | CN2653115Y Knocking type quick unloading casing protective screw |
| 11/03/2004 | CN2653114Y Hoop joint type oil pumping rod centering guide |
| 11/03/2004 | CN1543694A Conductor system |
| 11/02/2004 | US6811187 System, method and apparatus for deploying a data resource within a threaded pipe coupling |
| 11/02/2004 | US6810974 Quick release drill bit for down-hole drills |
| 11/02/2004 | US6810973 Steerable horizontal subterranean drill bit having offset cutting tooth paths |
| 11/02/2004 | US6810972 Steerable horizontal subterranean drill bit having a one bolt attachment system |
| 11/02/2004 | US6810971 Steerable horizontal subterranean drill bit |
| 11/02/2004 | US6810956 Thread coupling for a drill string for percussive rock drilling |
| 11/02/2004 | CA2465942A1 Perforating gun |
| 11/02/2004 | CA2327671C Coil springs for cable support |
| 11/02/2004 | CA2105722C Procedure and production pipe for production of oil or gas from an oil or gas reservoir |
| 10/28/2004 | WO2004093097A2 A disconnection device for a wireline |
| 10/28/2004 | WO2004092633A2 Spoolable composite coiled tubing connector |
| 10/28/2004 | WO2003089752B1 Well completion with merged influx of well fluids |
| 10/28/2004 | WO2003076760A9 Steerable soil penetration system |
| 10/28/2004 | WO2003067016A3 Bi-directional thruster pig apparatus and method of utilizing same |
| 10/28/2004 | US20040211571 Control line protector |
| 10/28/2004 | US20040211569 Installation and use of removable heaters in a hydrocarbon containing formation |
| 10/28/2004 | US20040211560 Gravel packing method using vibration and hydraulic fracturing |
| 10/27/2004 | CN2651417Y 抽油杆保护器 Rod protector |
| 10/27/2004 | CN2651416Y Improved sucker rod stabilizer |
| 10/27/2004 | CN2651415Y Connector for sucker rod and pump plunger |
| 10/27/2004 | CN2651414Y Piping jointer structure of oil and water well |
| 10/27/2004 | CN1173110C Ground remote control adjustable bent sub |
| 10/26/2004 | US6808455 Torsional shock absorber for a drill string |
| 10/26/2004 | US6808210 Drill pipe with upset ends having constant wall thickness and method for making same |
| 10/26/2004 | US6808024 Downhole seal assembly and method for use of same |
| 10/26/2004 | US6808023 Disconnect check valve mechanism for coiled tubing |
| 10/21/2004 | WO2004090348A1 Buoyancy clamp and method of application |
| 10/21/2004 | WO2004090280A1 Method and device for the controlled disconnection of a wireline |
| 10/21/2004 | WO2004090278A1 Dynamic damper for use in a drill string |
| 10/21/2004 | WO2004060590A3 Pressure relieved thread connection |
| 10/21/2004 | US20040207159 Washpipe apparatus |
| 10/21/2004 | US20040206726 Hardfacing alloy, methods, and products |
| 10/21/2004 | US20040206549 Expandable underreamer/stabilizer |
| 10/21/2004 | US20040206548 Active controlled bottomhole pressure system & method |
| 10/21/2004 | US20040206511 Wired casing |
| 10/21/2004 | US20040206510 Insulating device and assembly |
| 10/21/2004 | US20040206509 Casing wear band and method of attachment |
| 10/21/2004 | US20040206507 Manifold device and method of use for accessing a casing annulus of a well |
| 10/21/2004 | CA2523500A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/20/2004 | EP1469243A1 A swivel seal assembly, a method for increasing the life of a swivel seal and a swivel |
| 10/20/2004 | EP1468164A1 Riser for connection between a vessel and a point at the seabed |
| 10/20/2004 | EP1161615B1 Fluid controlled adjustable down-hole tool |
| 10/20/2004 | CN2649767Y Dry perforating semi-auger stem |
| 10/20/2004 | CN2649766Y Continuous casing-off no-perfusate casing pipe short joint |
| 10/20/2004 | CN2649284Y Thin board drilling bit |
| 10/20/2004 | CN1538034A Well washing method of hierarchical water injection well and its underwell tubular column |
| 10/20/2004 | CN1172103C Threaded connection with high compressive rating |
| 10/19/2004 | US6805202 Well screen cover |
| 10/19/2004 | US6805201 Internal beam buoyancy system for offshore platforms |
| 10/19/2004 | CA2090294C Method and device for intermittent electrical connection with a fixed position tool within a well |
| 10/15/2004 | CA2462798A1 Washpipe apparatus |
| 10/14/2004 | WO2004065835A3 Connection assembly for directional drilling |
| 10/14/2004 | WO2004057715A3 A cable duct device in a swelling packer |
| 10/14/2004 | US20040200622 Wellhead protector |