Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › 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)
11/2008
11/26/2008EP1313827B1 Threaded component for seizure-resistant tubular threaded joint
11/26/2008CN201155303Y Tungsten alloy plating screw drilling tool
11/26/2008CN201155302Y Multiple-element co-seepage corrosion proof pumping rod
11/26/2008CN101313127A Method for monitoring fluid properties
11/26/2008CN100436752C High expansion anchor system
11/25/2008US7455113 Downhole impeller device
11/25/2008CA2446529C Disconnect check valve mechanism for coiled tubing
11/25/2008CA2384811C Method of drilling a wellbore with disengageable couplers
11/25/2008CA2367062C Stabiliser tool block wear pad assembly
11/25/2008CA2357886C Travelling valve assembly for a fluid pump
11/20/2008WO2008140856A1 Wellhead component coupling system and method
11/20/2008WO2008139116A1 Method for providing an underwater duct comprising hammering the assembly welds inside the duct
11/20/2008WO2008138957A2 System for drilling a wellbore
11/20/2008WO2007103707A3 Systems and methods for using an umbilical
11/20/2008WO2007014339A3 Method and apparatus for coupling expandable tubular members
11/20/2008US20080286049 Clamping Device for Buoyancy Bodies
11/20/2008US20080283248 Flexible Riser And Method for Pulling-In And Hanging Up Thereof
11/20/2008DE102007023306A1 Verwendung einer Stahllegierung für Mantelrohre zur Perforation von Bohrlochverrohrungen sowie Mantelrohr Use of a steel alloy casing pipes for perforating wellbore tubing and casing pipe
11/20/2008CA2686386A1 System for drilling a wellbore
11/20/2008CA2685385A1 Wellhead component coupling system and method
11/19/2008EP1991756A2 Manipulatable spider components adapted for cooperation with a vertically reciprocating control line guide
11/19/2008EP1520083B1 Dovetail thread coupling for expandable tubulars
11/19/2008CN201152419Y High speed high pressure rotating coupling for adhesive emulsion
11/19/2008CN201152152Y Casing string compression stress releasing coupling
11/19/2008CN201152151Y Flange type double-walled bore rod for transferring torque, and conveying fluid
11/19/2008CN101310092A Method and device at rock drilling
11/19/2008CN101310091A Device for controlling slugging
11/19/2008CN101310090A Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use
11/19/2008CN101307677A Renewed superhigh intensity distortion-resistant abrasion-proof oil well pipe and its process
11/19/2008CN101307676A Renewed superhigh intensity distortion-resistant anti-corrosive oil well pipe and its process
11/18/2008US7452007 Hybrid threaded connection for expandable tubulars
11/18/2008US7451824 Downhole draw down pump and method
11/18/2008US7451716 Water intake riser
11/18/2008CA2459007C Sucker rod dimension measurement and flaw detection system
11/18/2008CA2416053C Downhole data transmission system
11/18/2008CA2314192C Downhole shock absorber
11/13/2008WO2008137388A1 Mounting system for a fiber optic cable at a downhole tool
11/13/2008WO2007133928A3 Marine riser and method for making
11/13/2008US20080277925 Screw Joint for Steel Pipe and Process for Manufacturing Thereof
11/13/2008US20080277166 Downhole Drilling of a Lateral Hole
11/13/2008CA2685912A1 Mounting system for a fiber optic cable at a downhole tool
11/12/2008EP1989390A2 Running bore-lining tubulars
11/12/2008CN201148845Y Reset mechanism of pumping oil manifold pillar rotary device
11/12/2008CN201148844Y Mechanical water research and water shutoff integrated pipe column
11/12/2008CN201148843Y Releasing type water block pipe pillar capable of heat washing to protect oil layer
11/12/2008CN201148842Y Bias-wearing proof oil pumping pipe pillar
11/12/2008CN201148841Y Superhigh intensity oil pumping rod
11/12/2008CN101305156A Thread securer
11/12/2008CN101305155A Low carbon steel expandable tubular
11/12/2008CN101302924A Telescopic link anti-release apparatus
11/12/2008CN101301744A Tool for installing and dismounting petroleum casing pipe screw protector and use thereof
11/12/2008CN100432368C Connection rod and method for production thereof
11/11/2008US7448312 Hydraulic swivel drive for a grab
11/06/2008WO2008134765A2 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig
11/06/2008WO2008134650A2 Method and apparatus for connecting drilling riser strings and compositions thereof
11/06/2008WO2008134333A1 Field-assemblable bow-spring casing centralizer and method of making a centralizer
11/06/2008WO2008133584A1 Neck adapter with side- flushing hole
11/06/2008WO2008132415A1 Device for protecting a geotechnical or geophysical probe
11/06/2008US20080271926 Mounting system for a fiber optic cable at a downhole tool
11/06/2008US20080271896 Device in Connection with Heave Compensation
11/06/2008US20080271887 Method and system for performing operations and for improving production in wells
11/06/2008US20080271884 Dropping sub method and apparatus
11/06/2008CA2685788A1 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig
11/06/2008CA2684895A1 Field-assemblable bow-spring casing centralizer and method of making a centralizer
11/06/2008CA2682353A1 Device for protecting a geotechnical or geophysical probe
11/05/2008EP1987223A1 System for and method of restraining a subsurface exploration and production system
11/05/2008EP1454035B1 Friction reducing composition and method
11/05/2008CN201144651Y Wear-resistant auger stem
11/05/2008CN201144650Y Multifunctional creep grinding apparatus equipped with electronic power measuring device
11/05/2008CN201144649Y Multifunctional creep grinding apparatus equipped with automatic compensation device
11/05/2008CN201144648Y Variable diameter stabilizer for gas drilling
11/05/2008CN201144647Y Fast joint of plug-in type auger stem
11/05/2008CN201144646Y Fast joint of desert screw driller
11/05/2008CN201144645Y One-piece auger weighted drill pipe
11/05/2008CN201144644Y Double top type hillside drill stem
11/05/2008CN201144640Y Hydraulic telescopic door frame type drill
11/05/2008CN201144639Y Ground auger for garden
11/05/2008CN201144637Y Power head with shock-absorbing device
11/05/2008CN101298834A Ultralong pumping rod hot pipe assembly with high heat transfer characteristic
11/05/2008CN100430292C Water intake riser
11/04/2008US7445060 Steerable drill bit arrangement
11/04/2008CA2487361C Screw joint for steel pipe
11/03/2008CA2630299A1 Apparatus and method for installing a sucker rod guide
10/2008
10/30/2008WO2008128269A1 Pipe coupling
10/30/2008WO2008128267A1 Device for releasably connecting a core drill bit to a drill string
10/30/2008US20080264694 Drill Rod
10/30/2008US20080264693 Drive System
10/30/2008US20080264644 Method and apparatus for connecting drilling riser strings and compositions thereof
10/30/2008US20080264639 Method and Apparatus for Orienting Perforating Devices
10/30/2008US20080264629 Field-Assemblable Bow-Spring Casing Centralizer and Method of Making A Centralizer
10/30/2008CA2684641A1 Stroker tool
10/30/2008CA2630084A1 Coiled tubing with retainer for conduit
10/29/2008EP1985798A2 Protective sleeve for threated connections for expandable liner hanger
10/29/2008EP1985797A2 Protective sleeve for threated connections for expandable liner hanger
10/29/2008EP1985796A2 Protective sleeve for threated connections for expandable liner hanger
10/29/2008EP1984665A1 A disengageable spindle drive
10/29/2008EP1646472A4 Pipe/connector weld joint, and methods of welding same
10/29/2008CN201141286Y Screw blade and intermediate pipe assembly for park and garden ground drill
10/29/2008CN201141285Y Socket jointing device for fluted twist drill rod
10/29/2008CN201141284Y Disconnecting-connecting device spring block for oil pump
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