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)
04/2003
04/29/2003US6554064 Method and apparatus for a sand screen with integrated sensors
04/29/2003CA2282358C Composite spoolable tube
04/29/2003CA2232925C Sucker rod coupling
04/24/2003WO2003033857A2 Flow control mechanism for a downhole tool
04/24/2003WO2003033856A1 Riser for connection between a vessel and a point at the seabed
04/24/2003US20030075924 Connection
04/24/2003US20030075364 Reamer shoe
04/24/2003US20030075361 Well system
04/24/2003US20030075360 Includes miscible combination of oleaginous fluid, an emulsifier capable of forming a microemulsion, an emulsifier capable of forming an invert emulsion, and an electrolytic salt; for electrically logging subterranean wells
04/24/2003US20030075340 Lubricant for use in a wellbore
04/24/2003US20030075321 Downhole device
04/24/2003US20030075319 Auto-extending/retracting electrically isolated conductors in a segmented drill string
04/24/2003US20030075317 Bi-directional explosive transfer subassembly and method for use of same
04/24/2003US20030074777 Apparatus and methods for remote installation of devices for reducing drag and vortex induced vibration
04/24/2003DE20301673U1 Damping ring for drill excavators or drill devices, has spring devices comprising piston cylinder devices provided between ring flanges
04/24/2003DE20219197U1 Unlocking device for locking bolts of auger drills has U-shaped yoke, in one leg of which a hand-operated unlocking pin can be moved in and out in direction of other leg, and end of unlocking pin protruding from yoke supports hand grip
04/23/2003EP1303720A2 Coiled tubing connector
04/23/2003EP1303681A1 Well management system
04/23/2003EP0842345B1 Drilling method and casing shoe
04/23/2003CN2546615Y Sucker rod joint
04/23/2003CN2546614Y Sucker rod
04/23/2003CN2546613Y Sucker rod base metal medium-frequency induction heating apparatus
04/23/2003CN1413285A Three dimensional steerable system
04/23/2003CN1412412A Pumping well sucker-rod string rotation technique
04/22/2003US6551029 Active apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around an element
04/22/2003US6550822 Threaded coupling with water exclusion seal system
04/22/2003US6550821 Threaded connection
04/22/2003US6550553 Boring apparatus
04/22/2003US6550550 Downhole drilling apparatus
04/22/2003US6550321 Apparatus for measuring and recording data from boreholes
04/17/2003WO2003031765A1 A riser and method of installing same
04/17/2003WO2002038910A9 Integrated modular connector in a drill pipe
04/17/2003WO2001014684A3 Method of lubricating and lubricant spraying apparatus
04/17/2003US20030070803 Dual diameter and rotating centralizer/sub and method
04/17/2003EP1144793A3 Method of lubricating and lubricant spraying apparatus
04/16/2003EP1302623A1 Wedge thread with torque shoulder
04/16/2003EP1203177A4 Expandable joint connector
04/16/2003CN2545355Y Built-in centering device
04/16/2003CN2545354Y Rotary cement head connecting device
04/16/2003CN2545353Y Sand control joint
04/15/2003US6547891 Elongated percussive rock drilling element
04/15/2003US6547010 Annular pack having mutually engageable annular segments
04/10/2003WO2003029615A1 Apparatus for monitoring undergound formations
04/10/2003WO2003029605A1 Disconnect for use in a wellbore
04/10/2003WO2003029604A1 Prevention of bit balling by metallic coasting
04/10/2003WO2003029603A1 Wellbore system for simultaneous drilling and production
04/10/2003US20030068941 Marine buoyancy modules and units
04/10/2003US20030067169 Thread form with multifacited flanks
04/10/2003US20030067168 Tubular threaded joint with reinforced stop
04/10/2003US20030066641 Threaded joint for an oil well pipe
04/10/2003DE10155105C1 Earth drill with pipe line installer has frame supporting hollow drill shaft with flushing pipes
04/09/2003EP1299615A1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore
04/09/2003EP1078190A4 Heavy weight drill pipe
04/09/2003EP1044247B1 Water soluble invert emulsions
04/09/2003EP0828914B1 Adjustable stabilizer for directional drilling
04/09/2003CN2544087Y Wearing-resistant sucker rod coupling
04/09/2003CN2544086Y Thermal-insulation oil production pipe for thick oil
04/09/2003CN1105404C Female wet connector socket
04/08/2003US6545221 Splice system for use in splicing coiled tubing having internal power cable
04/08/2003US6543816 Threaded tubular joint proof to external pressure
04/08/2003US6543556 Abnormal torque absorber for drilling
04/08/2003US6543553 Apparatus for use in drilling oil and gas production wells or water injection wells
04/08/2003US6543534 Downhole jet pump
04/08/2003CA2239645C Method and apparatus for locating a drill bit when drilling out cementing equipment from a wellbore
04/03/2003WO2003027436A1 Profiled recess for instrumented expandable components
04/03/2003WO2003027435A1 Profiled encapsulation for use with instrumented expandable tubular completions
04/03/2003US20030062717 Multi-passage conduit
04/03/2003US20030062169 Disconnect for use in a wellbore
04/03/2003US20030062157 Field weldable connections
04/03/2003DE20119575U1 Accessory for striking anchor bolt into drilled hole, designed to be inserted into chuck for drill hammer or hammer tool
04/03/2003CA2666045A1 Profiled encapsulation for use with instrumented expandable tubular completions
04/02/2003EP0960261B1 Tool and method for drilling a lateral well
04/02/2003EP0927294B1 Coupling piece for use at simultaneous earth and/or rock drilling with an upper rotary percussion device and a lower percussion device
04/02/2003EP0871817B1 Apparatus for setting a liner in a well casing
04/02/2003CN1408047A Thread joint and rock drill element
04/02/2003CN1408046A Thread joint and rock drill element
04/02/2003CN1406699A Electric tool with battery catapult
04/01/2003US6540032 Apparatus for transferring electrical energy between rotating and non-rotating members of downhole tools
04/01/2003US6540025 Hydraulically metered travel joint method
03/2003
03/27/2003WO2003025336A1 Active controlled bottomhole pressure system & method
03/27/2003WO2003025333A1 Drill rod with automatic clutch
03/27/2003WO2003025332A1 Buoyancy apparatus for riser tensioning
03/27/2003WO2003025331A1 Buoyancy element and module
03/27/2003WO2003025330A2 Liquid seal for wet roof bit
03/27/2003WO2003025328A1 Steerable underreaming bottom hole assembly and method
03/27/2003WO2002103854A3 Conductor system
03/27/2003US20030058127 Power and signal transmission using insulated conduit for permanent downhole installations
03/27/2003US20030056991 Apparatus and method for simultaneous drilling and casing wellbores
03/27/2003US20030056954 Methods and apparatus for a subsea tie back
03/27/2003US20030056949 Wellbore casing
03/27/2003US20030056948 Profiled encapsulation for use with instrumented expandable tubular completions
03/27/2003US20030056947 Profiled recess for instrumented expandable components
03/27/2003DE19927020C2 Verfahren zum unterirdischen Verlegen von Entwässerungskanälen und Preßschacht zur Durchführung des Verfahrens A method for underground laying of drainage channels and Preßschacht for performing the method
03/26/2003EP1296088A1 Taper threaded joint
03/26/2003EP1295060A1 Tubular threaded joint capable of being subjected to diametral expansion
03/26/2003EP1295008A1 Composite centraliser
03/26/2003EP1295007A1 Tubular threaded joint with reinforced stop
03/26/2003EP1101056A4 Threaded and coupled connection for improved fatigue resistance
03/26/2003CN2541599Y Sucker rod centering guide
03/26/2003CN1406311A Choke inductor for wireless communication and control in a well
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