E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings

Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
10/2006
10/31/2006	US7128153 Treatment of a hydrocarbon containing formation after heating
10/31/2006	US7128147 Modular liner hanger
10/31/2006	CA2315730C Centralizer for sucker rod strings
10/31/2006	CA2184322C Multiple lateral hydrocarbon recovery system and method
10/27/2006	CA2542675A1 Tubing connector
10/26/2006	WO2006113764A2 Manual actuation of pto-based chuck
10/26/2006	WO2006112730A1 Flexible riser and method for pulling-in and hanging up thereof
10/26/2006	WO2005100736A3 Coupler and roof drill bit assembly using such coupler
10/25/2006	EP1588019B1 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
10/25/2006	EP1101057B1 Multi-start wedge thread for tubular connection
10/25/2006	CN2830629Y Rolling beam centralizer
10/25/2006	CN1853030A Locking device for built pipe connections
10/25/2006	CN1281845C System for carrying well equipment in the well
10/24/2006	US7126492 Electromagnetic borehole telemetry system incorporating a conductive borehole tubular
10/24/2006	US7124825 Casing wear band and method of attachment
10/24/2006	US7124818 Clamp mechanism for in-well seismic station
10/19/2006	WO2006110658A1 Systems and methods for reducing vibrations
10/19/2006	WO2006110461A2 Drilling with casing
10/19/2006	WO2006110086A1 An arrangement of percussive drill components and percussive drill component incorporating a thread joint
10/19/2006	WO2006109090A2 Downhole swivel sub
10/19/2006	WO2006077399A3 Centraliser
10/19/2006	WO2006008361A1 Train of rods for the high-speed transmission of information in a wellbore
10/19/2006	WO2005108848A3 Improved coupling for drilling-with-casing operations
10/19/2006	US20060231250 Pipe centralizer and method of forming
10/19/2006	US20060230839 Apparatuses and methods for monitoring stress in steel catenary risers
10/19/2006	DE202005008585U1 Lifting cap for plastic pipes, comprises a rod located in the circumferential groove of a sleeve
10/19/2006	CA2604438A1 Downhole swivel sub
10/18/2006	EP1712727A1 Method of completing a subterranean well and associated apparatus
10/18/2006	EP1188265A4 Method and apparatus for determining position in a pipe
10/18/2006	CN1847608A Spring type Y-shaped well joint
10/18/2006	CN1280515C Hole drilling equipment and method
10/18/2006	CN1280514C Earth formation surveying method
10/18/2006	CN1280386C Lubricating coating composition suitable for lubrication of a threaded joint
10/17/2006	US7121767 Rugged foam buoyancy modules and method of manufacture
10/17/2006	US7121349 Wellhead protector
10/17/2006	US7121343 Selectively operational cleaning tool
10/12/2006	WO2006059220B1 A hybrid riser system
10/12/2006	WO2006037079A3 Apparatus and method for wireline imaging in nonconductive muds
10/12/2006	US20060228170 Joint equipment for steel reinforcing
10/12/2006	US20060225926 Method and conduit for transmitting signals
10/12/2006	US20060225889 Downhole draw down pump and method
10/11/2006	EP1709288A1 Tubular stabbing protector and method
10/11/2006	EP1709284A1 Assembly and method for stiffening a flexible pipe
10/11/2006	EP1709283A1 Coiled tubing connector and method of manufacture
10/11/2006	EP1259710B1 Oilwell casing electrical power pick-off points
10/11/2006	EP1259708B1 Wireless power and communications cross-bar switch
10/11/2006	CN2825938Y Mud scraping ring and scraping apparatus for drill rod external wall
10/11/2006	CN2825921Y Centralizer for assembling and disassembling oil pipe screw for oil-water well
10/11/2006	CN2825920Y Tubing with integral joint
10/11/2006	CA2542529A1 Improved hydraulic pump jack system for reciprocating oil well sucker rods
10/10/2006	US7117944 Drill pipe having an internally coated electrical pathway
10/10/2006	CA2394488C Welded joints for rotary-vibratory drills having reduced stress
10/10/2006	CA2220067C Tubular actuator component for use in a drill-string
10/05/2006	WO2006103477A1 Protection sleeve
10/05/2006	US20060220650 Wellbore communication system
10/05/2006	US20060219441 Stabiliser, jetting and circulating tool
10/05/2006	CA2690456A1 Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture
10/04/2006	EP1706714A1 Instrumented tubular device for the transport of a pressurised fluid using bragg grating rosettes
10/04/2006	EP1706584A2 Measuring device and drilling device for deep drillings
10/04/2006	EP1706583A1 High-strength sealed connection for expandable tubulars
10/04/2006	EP1706577A2 Drill stem for deep drillings
10/04/2006	EP1706575A2 Drill bit with protection member
10/04/2006	EP1259706B1 Use of downhole high pressure gas in a gas-lift well
10/04/2006	CN2823531Y Two stage friction-reducing sliding block type eccentrically worn-proof device
10/04/2006	CN2823530Y Locking ball type coupling
10/04/2006	CN1840855A Coupling type deflection abrasion preventing centralizer
10/04/2006	CN1278013C Hydraulic mounting pliers of portable pumping-rod centralizer
10/04/2006	CN1278012C Technology of internal coating for tubing of drilling well
10/03/2006	US7116199 Inductive coupler for downhole components and method for making same
10/03/2006	US7114970 Electrical conducting system
10/03/2006	US7114885 Protection means for a flexible riser
10/03/2006	US7114581 Active controlled bottomhole pressure system & method
10/03/2006	US7114571 Device for installation and flow test of subsea completions
10/03/2006	US7114566 Heat treatment using natural distributed combustor; oxidation of hydrocarbons to generate heat; pyrolysis
10/03/2006	US7114564 Method and apparatus for orienting perforating devices
10/03/2006	US7114563 Tubing or drill pipe conveyed downhole tool system with releasable wireline cable head
10/03/2006	US7114562 Apparatus and method for acquiring information while drilling
10/03/2006	CA2472436C Method and apparatus for performing diagnostics on a downhole communication system
10/03/2006	CA2358997C Friction reducing tool and method for its use in a wellbore
10/03/2006	CA2326489C Drillstring with stabilisers for re-entering a primary wellbore
10/03/2006	CA2250483C Well system
10/03/2006	CA2179166C Downhole tool
09/2006
09/28/2006	WO2006100014A1 Probe end piece
09/28/2006	WO2006020913A3 Method of manufacturing a tubular member
09/28/2006	WO2005100696A3 Stepped tendon with sealed bulkheads for offshore platform
09/28/2006	US20060214011 Oilfield equipment identification method and apparatus
09/28/2006	US20060213692 Hydro-lifter rock bit with PDC inserts
09/28/2006	US20060213691 Stabilizer Arrangement
09/27/2006	EP1704299A1 Non-threaded expandable pipe connection system
09/27/2006	CN2821141Y Multipurpose safety unfreezing oil-water well two-way anchor
09/27/2006	CN2821139Y Rolling type locking centralizer for well oil pumping rod anti-bias wearing
09/27/2006	CN2821138Y Slide locking centralizer for well oil pumping rod anti-bias wearing
09/27/2006	CN2821137Y Screw pump centralizer
09/27/2006	CN2821136Y Improvement of position limit type oil pumping rod collar clamp centralizer
09/27/2006	CN1837572A Glass fiber reinforced plastic centralizer
09/27/2006	CN1837571A Telescopic drill rod and telescopic long spiral drilling device
09/27/2006	CN1837395A Anti-sulfur drill rod and method for manufacturing the same
09/26/2006	US7112080 Wet mateable connector
09/26/2006	US7112011 Hydro-pneumatic tensioner with stiffness altering secondary accumulator
09/26/2006	US7111695 Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium

1 ... 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 ... 278