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)
06/2011
06/08/2011	CN201857903U Split adapter for casing drilling
06/08/2011	CN201857902U Connection structure of vacuum insulated tubing
06/08/2011	CN201857901U Telescopic drill rod and cast-in-situ cylinder pile rotary drilling rig utilizing same
06/08/2011	CN201857900U Anti-settling baseplate of mud line of water-proof guide pipe for offshore drilling
06/08/2011	CN201857899U Quick connection type triangular drill rod for mines
06/08/2011	CN1944940B Hollow guide device for oil pumping rod
06/08/2011	CN1671944B Installation and use of removable heaters in a hydrocarbon containing formation
06/08/2011	CN102086758A Integral-assembling type heat-insulating oil pipe connection structure
06/08/2011	CN102086756A Hole-dilating drill for pressure reduction and speed acceleration
06/08/2011	CN102086296A Novel carbon-fiber composite sucker rod
06/08/2011	CN101680584B Pressure isolation system for flexible pipe joints
06/08/2011	CN101550808B Soft blocking self-releasing technique of flexible rod string
06/08/2011	CN101503948B Heavy-duty universal coupling device used for coupling drilling tool and drilling rod
06/07/2011	US7954567 Adjustable winged centering tool for use in pipes with varying diameter
06/07/2011	US7954566 Stabilizer for drill strings
06/07/2011	US7954565 Thread retention for an earth boring device
06/07/2011	CA2642724C Downhole assembly releasable connection
06/07/2011	CA2605260C Lockable swivel apparatus and method
06/03/2011	WO2011064591A2 Riser configuration
06/03/2011	WO2011064467A1 Drill string components, and string of components
06/03/2011	WO2011063976A2 Threaded connection
06/03/2011	WO2011063931A1 Assembly for producing a threaded connection, method for making up and breaking out said connection and use of said connection in a work over riser
06/03/2011	WO2010085829A3 Device for coupling two tubular elements
06/03/2011	CA2781705A1 Threaded connection
06/03/2011	CA2781704A1 Assembly for producing a threaded connection, method for making up and breaking out said connection and use of said connection in a work over riser
06/03/2011	CA2714704A1 Wellbore percussion adapter and tubular connection
06/02/2011	US20110129305 Riser support system
06/02/2011	US20110127046 Grip Enhanced Tractoring
06/02/2011	US20110127041 Riser weak link
06/01/2011	EP2326794A1 A offshore seabed to surface conduit transfer system
06/01/2011	EP2326793A2 High pressure sleeve for dual bore hp riser
06/01/2011	EP2326790A1 Ultra-low friction coatings for drill stem assemblies
06/01/2011	EP2326789A2 Apparatus for use in top filling of tubulars and associated methods
06/01/2011	EP2326788A2 Drilling out casing bits with other casing bits
06/01/2011	EP1188265B1 Method and apparatus for determining position in a pipe
06/01/2011	CN201851801U Novel steel plastic oil pipe
06/01/2011	CN201851041U Spiral rectifier type arc-shaped ribbed drill rod
06/01/2011	CN201851040U Spiral drill rod for complex stratum
06/01/2011	CN201851039U Unequal diameter drill collar with same elevator groove
06/01/2011	CN201851038U Bearing centralizer
06/01/2011	CN201851037U Cushioning device
06/01/2011	CN201851036U Antifriction and resistance-diminishing centralizing short piece
06/01/2011	CN201851035U Oil pipe protector
06/01/2011	CN201851034U Backward flowing prevention device
06/01/2011	CN201851033U Connector used for rotary drilling machine
06/01/2011	CN201851032U Drill rod clamping device of rock drill
06/01/2011	CN201851031U Thick-walled drill pipe
06/01/2011	CN201851030U Upset forging direct-connected high anti-torque hollow sucker rod
06/01/2011	CN201851029U Novel sucker rod
06/01/2011	CN201851028U Cable head for connecting logging cable and downhole tool
06/01/2011	CN201851027U Pumping-aid and sucker rod dropout prevention integral device
06/01/2011	CN201851026U Special infinite extended high-pressure rubber tube for petroleum
06/01/2011	CN201851025U Carbon-zirconium anticorrosive anti-eccentric-wearing oil pipe
06/01/2011	CN201851024U Titanium nanometer anticorrosive oil pipe
06/01/2011	CN201851023U High-torque hollow sucker rod adopting upset forging type coupling connection manner
06/01/2011	CN201851022U Abnormal boring rod used for loose and prominent coal beds
06/01/2011	CN201851018U Jaw flange drill barrel of drilling machine
06/01/2011	CN201851007U Screw rotor
06/01/2011	CN201851006U Device for vertically boring holes on concrete with high precision
06/01/2011	CN201851001U Drilling machine for constructing piles with high bearing capacity
06/01/2011	CN201850548U High-pressure rotary spraying pile driver
06/01/2011	CN102084168A Double-ended flexible pipe joint having stacked co-axial primary and secondary annular elastomeric flex elements
06/01/2011	CN102080546A Simple reverse circulation drilling rig
06/01/2011	CN102080538A Neutron emission control method, device and short joint for while-drilling neutron porosity measurement
06/01/2011	CN102080532A Flow-concentrating flowmeter for downhole steam measurement
06/01/2011	CN102080507A Anti-abrasion device for drill pipe and casing pipe
06/01/2011	CN102080506A Drill rod used for engineering driller
06/01/2011	CN102080503A Continuous directional coring and deflecting machine tool with dual tubes for outer guiding and inner drilling and deflecting method thereof
06/01/2011	CN101503949B Double-thread hollow coring drill rod
06/01/2011	CN101353081B Water intake riser
06/01/2011	CN101235711B Hollow sucker rod electric heater unit
05/2011
05/31/2011	US7950467 Conveyor tube for use in installing or replacing a well tool in a producing well and procedures for use of the same
05/31/2011	US7950449 Stress and torque reducing tool
05/31/2011	CA2462234C Contractable and expandable tubular wellbore system
05/26/2011	WO2011061681A2 Rugged coiled tubing connector
05/26/2011	WO2011061502A2 Swellable connection system and method of using the same
05/26/2011	WO2011061422A1 Facility having fanned seabed-to-surface connections
05/26/2011	WO2011060894A2 Threaded connection
05/26/2011	WO2011022403A3 Downhole motor bearing assembly with an integrated thrust shock absorber for downhole drilling and method thereof
05/26/2011	US20110120779 Equipment for drilling secant holes
05/26/2011	US20110120778 Drilling tool
05/26/2011	US20110120701 Stress Relief in a Pocket of a Downhole Tool String Component
05/26/2011	DE102008047060B4 Gewindeverbindung Threaded connection
05/26/2011	CA2781271A1 Threaded connection
05/25/2011	EP2325435A1 Threaded joint sealed to [ultra high] internal and external pressures
05/25/2011	EP2324187A2 A controller for a downhole tool
05/25/2011	CN201844135U Pipe reducing union
05/25/2011	CN201843602U Staged modified string of open-hole horizontal well
05/25/2011	CN201843594U Tubular column with fine separated layer water injection process
05/25/2011	CN201843565U Belt pump type multifunctional water plugging tubular column
05/25/2011	CN201843535U Sliding pin type drilling rig
05/25/2011	CN201843534U Quick-connect auger stem used for roadway supporting and anchoring
05/25/2011	CN201843533U Structure of plug-in sealing slot
05/25/2011	CN201843532U Positioning anti-eccentric wear device
05/25/2011	CN201843531U Friction and torque reducing tool
05/25/2011	CN201843530U Drill rod vertical guide device of drilling machine for geological investigation
05/25/2011	CN201843529U Anti-release wear resistant device
05/25/2011	CN201843528U High-connection strength round thread connecting structure for oilfield casing and oil pipe
05/25/2011	CN201843527U Sucker rod collar
05/25/2011	CN201843518U Vehicle-mounted petroleum drill and power head thereof

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