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)
12/2010
12/15/2010CN201671562U Rock-socketed inclined pile construction equipment
12/15/2010CN201671561U Well-flushable safety joint
12/15/2010CN201671560U Single hook-shaped end-face metal self-sealing expansion casing thread joint
12/15/2010CN201671559U Packing type slurry rotating joint
12/15/2010CN201671558U Metal spherical sealing double-shoulder oil drill rod connector
12/15/2010CN201671557U Bended head hydraulic rotating joint
12/15/2010CN201671556U Approximate packed well drilling tool
12/15/2010CN201671555U Anti-protrusion temperature reduction drill stem
12/15/2010CN201671554U Flat drill pipe
12/15/2010CN201671553U Ribbed drill pipe
12/15/2010CN201671552U Depth marking ring of oil well casing
12/15/2010CN101915065A Hemispherical drill stem for rotary drilling rig
12/15/2010CN101915064A Bimetal compound pipe
12/15/2010CN101915063A Ground well casing capable of preventing mining damage
12/15/2010CN101915062A Glass reinforced plastic sleeve used for coal bed gas well
12/15/2010CN101915056A Power head drive sleeve of improved rotary drilling rig
12/15/2010CN101914915A Construction method for anti-floating anchor rod and special long auger
12/15/2010CN101285151B Petroleum case pipe with high strength and toughness and producing method thereof
12/14/2010US7852232 Downhole tool adapted for telemetry
12/14/2010US7849939 Drill bit
12/14/2010US7849918 Centering structure for tubular member and method of making same
12/14/2010CA2628766C Downhole array and assembly thereof
12/14/2010CA2463104C In situ production of a blending agent from a hydrocarbon containing formation
12/14/2010CA2445058C Fractional turn cam lock fluid joint
12/10/2010CA2695797A1 A method of fabricating a drive shaft for earth drilling motor and a drive shaft
12/09/2010WO2010141843A2 Riser floatation with anti-vibration strakes
12/09/2010WO2010141490A2 Improved spline stress distribution
12/09/2010WO2010141436A2 Vortex induced vibration suppression systems and methods
12/09/2010WO2010140895A1 Landing sub for a wiper
12/09/2010WO2010120613A3 Apparatus for and method of securing a centralizer to a tubular
12/09/2010US20100307837 Casing bit and casing reamer designs
12/09/2010US20100307762 Riser floatation with anti-vibration strakes
12/09/2010CA2763587A1 Improved spline stress distribution
12/08/2010CN201666136U Communicating pipe device
12/08/2010CN201666128U Rib drill rod
12/08/2010CN201666127U Novel installation mechanism for connection between host machine of engineering driller and sliding sleeve
12/08/2010CN201666126U Antifriction ball-bearing casing protecting device
12/08/2010CN201666125U Roller-type centralizer
12/08/2010CN201666124U Rhombic drill rod for mine
12/08/2010CN201666123U Drill stem fall-protection rescue device of rotary drilling rig
12/08/2010CN201666117U Novel screw drill tool comprising wired assembly for testing while drilling
12/08/2010CN1890451B System and method for damping vibration in a drill string
12/08/2010CN101910548A Sealed threaded tubular connection which is resistant to successive pressure loads
12/08/2010CN101906955A Oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure
12/08/2010CN101906942A Pipe connector
12/08/2010CN101906941A Integral joint tubing by upset forging processing
12/08/2010CN101906940A Impacting head assembly for ground drills
12/08/2010CN101906939A Directional well guider and manufacturing method thereof
12/08/2010CN101575853B Two-way drill rod of cement mixing pile
12/07/2010US7845687 Resistance to fatigue of a threaded tubular connection
12/07/2010US7845434 Technique for drilling straight bore holes in the earth
12/07/2010US7845432 Microtunnelling system and apparatus
12/07/2010US7845430 Compliantly coupled cutting system
12/07/2010US7845408 Top drive swivel apparatus and method
12/07/2010US7845061 Low clearance centralizer and method of making centralizer
12/07/2010CA2578008C Threaded joint for steel pipes
12/07/2010CA2537171C Method of locking tubular components in end to end relation
12/02/2010WO2010137986A2 Method and system for transferring signals through a drill pipe system
12/02/2010WO2010136117A1 Modular system of multi-purpose rods for drilling soil
12/02/2010WO2010093878A3 Expandable casing with enhanced collapse resistance and sealing capability
12/02/2010WO2010018366A3 A controller for a downhole tool
12/02/2010US20100300761 Apparatus and methods to optimize fluid flow and performance of downhole drilling equipment
12/02/2010US20100300720 Drive device for a boring bar
12/02/2010US20100300699 Riser pipe with adjustable auxiliary lines
12/02/2010US20100300697 Installing an expandable tubular in a subsea wellbore
12/02/2010US20100300678 Communicating electrical energy with an electrical device in a well
12/02/2010US20100300674 Permeability flow balancing within integral screen joints
12/02/2010CA2759316A1 Method and system for transferring signals through a drill pipe system
12/01/2010EP2256251A2 Pile and pile joint
12/01/2010EP2256025A1 Retrieval system
12/01/2010EP2255061A1 Improved centraliser
12/01/2010CN201661277U Multifunctional pumping well intensifying device
12/01/2010CN201661250U Drill collar capable of relieving stick-slip phenomenon
12/01/2010CN201661249U Novel wellhead bias adjustment device for oil pumping unit
12/01/2010CN201661248U Drilling bit and drilling string vibration absorption tool
12/01/2010CN201661247U Universal shaft of screw drill
12/01/2010CN201661246U Petroleum expansion pipe threaded joint connection structure
12/01/2010CN201661245U Windowing chip-proof joint for branch well
12/01/2010CN101903696A Styrenic insulation for pipe
12/01/2010CN101903613A Well tubings with polymer liners
12/01/2010CN101900161A Bearing arrangement for a drilling assembly
12/01/2010CN101899953A Thread joint structure for high-performance oil casing
12/01/2010CN101899947A Drilling method
12/01/2010CN101343984B Cement pipe assembly used for ocean drill platform
11/2010
11/30/2010US7841803 Device for rock bolting and for automized rock bolting and rock bolting method
11/30/2010US7841413 Pre-made up side entry sub apparatus and method
11/30/2010US7841400 Apparatus and system to allow tool passage ahead of a bit
11/30/2010CA2463110C In situ recovery from a hydrocarbon containing formation using barriers
11/30/2010CA2462794C Method and system for in situ heating a hydrocarbon containing formation by a u-shaped opening
11/25/2010WO2010134847A1 Pump rod with polyurethane coating and a coating application method
11/25/2010WO2010133564A2 Method of protecting a flexible riser and an apparatus therefor
11/25/2010WO2010133299A1 Threated connection for drilling and operating hydrocarbon wells
11/25/2010WO2010133135A1 Rotary drilling rig for cast-in-situ tubular pile and piling method thereof
11/25/2010WO2010112893A3 A rig for wellbore operations
11/25/2010WO2010109229A3 Casing centraliser
11/25/2010WO2010105953A3 Method of connecting a flexible riser to an upper riser assembly
11/25/2010WO2010067156A3 Apparatus and method for mounting acoustic sensors closer to a borehole wall
11/25/2010US20100294504 Flexible hang-off arrangement for a catenary riser
11/25/2010CA2760753A1 Threated connection for drilling and operating hydrocarbon wells
11/24/2010EP2253796A1 Method of protecting a flexible riser and an apparatus therefor
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