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)
11/2009
11/25/2009CN201351463Y Integral drag-reduction casing centralizer
11/25/2009CN201351462Y Rotary casing centralizer
11/25/2009CN201351461Y Elevation bore wall protector
11/25/2009CN201351460Y Sleeve wear-resistant connector
11/25/2009CN201351459Y Structure for connecting connectors of upper drill rod and lower drill rod of roller drilling machine with rod bodies
11/25/2009CN101589204A Expandable reamers for earth-boring applications and methods of using the same
11/25/2009CN101586452A Method of monitoring coal mining solid pack pressure
11/25/2009CN101586451A Erection device
11/25/2009CN101586450A Petroleum casing pipe with high strength and high toughness and preparing method thereof
11/25/2009CN101586449A Production technique and equipment for hot spraying alloy coating on polished pumping rod
11/25/2009CN101586448A Production technique and devices for hot spraying alloy coating on polished pumping rod
11/25/2009CN101586447A Production device for hot spraying alloy coating on surface of polished pumping rod
11/25/2009CN101586446A Hot spray process device for alloy coating on surface of polished pumping rod
11/25/2009CN101586445A Hot spray production technique and device for alloy coating on surface of polished pumping rod
11/25/2009CN101586444A Novel production process for hot spraying alloy coating on polished pumping rod
11/25/2009CN101586443A Hot spray production technique for alloy coating on surface of polished pumping rod
11/25/2009CN100562643C Drill bit with protection member
11/24/2009US7621323 Solid expandable tubular members formed from very low carbon steel and method
11/24/2009US7621034 Tubular threaded joint which is impervious to the external environment
11/19/2009WO2009140281A2 Open-faced rod spinner
11/19/2009WO2009140027A1 Breech lock coupling
11/19/2009WO2009139636A1 Assembly of flexible riser systems
11/19/2009WO2009138610A1 Inertia transition pipe element in particular for fixing a rigid submarine pipe
11/19/2009US20090283331 Material for producing parts or coatings adapted for high wear and friction-intensive applications, method for producing such a material and a torque-reduction device for use in a drill string made from the material
11/19/2009US20090283322 Drilling String Back off Sub Apparatus and Method for Making and Using Same
11/19/2009US20090283273 Well construction and completion
11/19/2009US20090283256 Downhole tubular length compensating system and method
11/19/2009CA2720969A1 Open-faced rod spinner
11/18/2009EP2118429A2 Rotary drill bit steerable system and method
11/18/2009CN201347756Y Down-hole while-drilling pressure gauge encapsulation drum
11/18/2009CN201347741Y Oil enhancing device of a pumping device
11/18/2009CN201347740Y Oil enhancing device of a pumping device
11/18/2009CN201347727Y Dismountable chamber body locking mechanism
11/18/2009CN201347726Y Hydraulic sucker rod eccentric wear prevention device
11/18/2009CN201347725Y Non-rotating outer sleeve stabilizing device of rotary steerable drilling tool
11/18/2009CN201347724Y Oil well casing joint sealing gland
11/18/2009CN201347723Y Sucker rod locking washer
11/18/2009CN101581203A Near-bit centralizer of riser pipe under simulated injection method
11/18/2009CN101581202A Upper feed pipe nipple device of riser pipe under simulated injection method
11/18/2009CN101581201A Hollow sucker rod
11/18/2009CN101581200A 120 steel grade drill pipe and manufacturing process method thereof
11/18/2009CN101581196A Impacting helicoid hydraulic motor and transmission shaft assembly
11/18/2009CN100560931C Oil well electric pump separate-extraction intelligent joint
11/17/2009US7618211 Manual breech lock wireline connector
11/17/2009US7617879 Casing shoe
11/17/2009US7617877 Method of manufacturing downhole tool string components
11/17/2009US7617873 System and methods using fiber optics in coiled tubing
11/17/2009CA2463052C Method and apparatus for expansion sealing concentric tubular structures
11/16/2009CA2631861A1 Pump jack assembly
11/12/2009WO2009136287A1 Aluminum riser assembly
11/12/2009WO2009136064A1 Device for extracting a material situated at the bottom of an expanse of water, extraction installation and associated method
11/12/2009WO2009135248A1 Drilling apparatus
11/12/2009WO2009115829A3 Flow restrictor
11/12/2009WO2009103999A3 Improved tubing section
11/12/2009WO2008132415A9 Device for protecting a geotechnical or geophysical probe
11/12/2009US20090280912 Coupling device
11/12/2009US20090279957 Riser assembly
11/12/2009US20090278348 Composite coiled tubing end connector
11/12/2009US20090277650 Reactive in-flow control device for subterranean wellbores
11/12/2009US20090277648 Downhole apparatus with a swellable support structure
11/12/2009US20090277646 Method and system of hydraulic control line connection
11/12/2009US20090277625 Compositions For Reducing Or Preventing The Degradation Of Articles Used In A Subterranean Environment And Methods Of Use Thereof
11/12/2009CA2723457A1 Drilling apparatus
11/12/2009CA2720829A1 Aluminum riser assembly
11/11/2009EP1339941B1 Improvements to disconnect devices
11/11/2009CN201344015Y Lubricator valve and well completion equipment with same
11/11/2009CN201344000Y Pumping well polish rod movable clamping device
11/11/2009CN201343999Y Pumping unit well mouth polish rod corrosion inhibition device
11/11/2009CN101578425A Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus
11/11/2009CN101576183A Expansion sleeve joint with double hook shaped thread connection
11/11/2009CN101575967A Heat insulation pipe and hollow sucker rod comprising same
11/11/2009CN101575950A Riser pipe shoe
11/11/2009CN101575949A Riser pipe quick coupling
11/11/2009CN101575948A Self-lubricating sucker rod joint and manufacturing process thereof
11/11/2009CN101575947A High-strength high-toughness carbide-free bainite drill pipe and preparation method thereof
11/11/2009CN101575943A Hydraulic high-speed drill
11/11/2009CN101575853A Two-way drill rod of cement mixing pile
11/11/2009CN100559009C Sucker rod cold-drawing recovery production process
11/10/2009CA2559469C Expansion activated anti-rotation device
11/10/2009CA2493901C Method for construction and completion of injection wells
11/10/2009CA2455165C Downhole release joint
11/07/2009CA2634557A1 Sucker rod
11/05/2009WO2009135223A2 Tubular handling apparatus
11/05/2009WO2009135217A2 Apparatus and methods for wedge lock prevention
11/05/2009WO2009134986A2 Riser clamp
11/05/2009WO2009134886A2 Vibrating downhole tool
11/05/2009WO2009134859A2 A force balancing system for use with a well bore tool
11/05/2009WO2009134160A1 Tight threaded joint for oil field pipes
11/05/2009WO2009132414A1 Drive shaft assembly for a downhole motor
11/05/2009WO2009102220A3 Force element arrangement and method
11/05/2009US20090272537 Aluminum riser assembly
11/05/2009US20090272525 Downhole apparatus with a swellable centraliser
11/05/2009US20090272519 Gas lift plunger assembly arrangement
11/05/2009CA2821684A1 Methods and apparatus for gripping a wellbore tubular
11/05/2009CA2722544A1 Tubular handling apparatus
11/05/2009CA2722543A1 Apparatus and methods for wedge lock prevention
11/05/2009CA2722539A1 A force balancing system for use with a well bore tool
11/05/2009CA2721336A1 Tight threaded joint for oil field pipes
11/05/2009CA2720515A1 Vibrating downhole tool
11/03/2009US7611290 Fiber optic wet connector acceleration protection and tolerance compliance
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