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)
04/2010
04/28/2010CN201443308U Device retarding abrasion of pumping rod in oil pipe
04/28/2010CN201443307U Sucking-aid centralizer for sucker rod
04/28/2010CN201443306U Lengthening and reinforced oil pipe cross-over joint
04/28/2010CN201443305U Sucker rod rotating device
04/28/2010CN201443299U Screw drill transmission shaft assembly with impact function
04/28/2010CN201442973U Electroslag furnace crystallizer used for producing square-head drill stem
04/28/2010CN101699022A Circular ring type oil pumping rod centering device
04/28/2010CN101699021A Friction welding type kelly bar
04/27/2010US7703550 Down hole motor with locking mechanism
04/27/2010US7703549 Method and apparatus for removing cuttings in high-angle wells
04/27/2010US7703542 Expandable packer system
04/27/2010US7703538 Access apparatus from a tubular into a downhole hydraulic control circuit and associated method
04/27/2010US7703331 Instrumented tabular device for transporting a pressurized fluid
04/27/2010CA2401744C Use of downhole high pressure gas in a gas-lift well
04/22/2010WO2010044767A1 Vertical drilling system for controlling deviation
04/22/2010WO2010043881A1 Improved downhole device
04/22/2010WO2010043509A1 Component for the drilling and for the exploitation of hydrocarbon wells
04/22/2010WO2009133474A3 Wired drill pipe cable connector system
04/22/2010US20100098500 Drilling tool, a self-drilling rock bolt, a drill bit, an anchoring device for a self-drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool
04/22/2010US20100096849 Internal Release Connector and Method
04/22/2010US20100096190 Drill pipe
04/22/2010US20100096124 Systems and methods for injecting or retrieving tubewire into or out of coiled tubing
04/22/2010CA2738094A1 Component for the drilling and for the exploitation of hydrocarbon wells
04/21/2010EP2177710A1 Three dimensional steerable system
04/21/2010EP2176504A1 Multi-purpose well servicing apparatus
04/21/2010EP2176503A2 Rotating and reciprocating swivel apparatus and method
04/21/2010EP2176502A2 Deployment system
04/21/2010EP2176493A1 Drill bit gauge pad control
04/21/2010CN201439705U Layering oil extraction pipe column capable of controlling flowing pressure
04/21/2010CN201439689U Novel centralizer
04/21/2010CN201439688U Four-way adapter for production well
04/21/2010CN201439687U Drilling machine for three-circle interconnected bored pile
04/21/2010CN1788138B Device for rock bolting and for automized rock bolting and rock bolting method
04/21/2010CN101696633A Construction method and equipment for cutting deep-buried structure with small-caliber drill tool
04/21/2010CN101696622A Single acting connector capable of changing angle to drive
04/21/2010CN101696621A Air-tight seal screw joint
04/21/2010CN101223368B A manual locking assembly for a quick connect coupling
04/20/2010US7699109 Rotating control device apparatus and method
04/20/2010CA2552439C Rotating blast liner
04/20/2010CA2492626C Flexible wellbore broach
04/20/2010CA2479236C Method and device for directional down-hole drilling
04/15/2010WO2010042873A2 Integrated installation and workover controll system
04/15/2010WO2010041048A1 Flexible pipe
04/15/2010WO2009134986A3 Riser clamp
04/15/2010US20100089662 Active gauge protection for drill bits
04/15/2010US20100089647 Drilling Method
04/15/2010US20100089588 System, method and apparatus for concentric tubing deployed, artificial lift allowing gas venting from below packers
04/14/2010EP2175101A2 Compliant Expansion Swage
04/14/2010EP2175100A1 Three dimensional steerable system
04/14/2010EP2173960A1 Rotary steerable drilling system
04/14/2010CN201437700U Oil extractor feed-rod lubricating device
04/14/2010CN201437695U Fast-assembly casing thread protector
04/14/2010CN201437694U Centralizer for elastic support needle roller of screw pump
04/14/2010CN201437693U Centralizing device
04/14/2010CN201437692U Riser pipe near-bit centralizer under simulation of injection method
04/14/2010CN201437691U Self-lubricating craftwork tubular column separator
04/14/2010CN201437690U Variable diameter releasing and tie-back tool
04/14/2010CN101694151A In-the-hole drill and vibration absorber thereof
04/13/2010US7694753 Dual rod drill pipe with improved flow path method and apparatus
04/13/2010US7694733 Centralizer
04/13/2010US7694564 Boiler tube inspection probe with centering mechanism and method of operating the same
04/13/2010CA2588065C A method and a device for solvent injection in a subsurface well
04/13/2010CA2434764C Improved downhole tool
04/08/2010WO2010040045A2 Identification of casing collars while drilling and post drilling and using lwd and wireline
04/08/2010WO2010039811A2 Pipe section guide system with flexible member
04/08/2010WO2010037919A1 Instrumented drill string element
04/08/2010WO2009156736A3 Reaming tool
04/08/2010US20100084132 Optical Coiled Tubing Log Assembly
04/08/2010US20100084129 Non-Metallic Mandrel and Element System
04/08/2010US20100084128 Non-Metallic Mandrel and Element System
04/08/2010CA2738741A1 Instrumented drill string element
04/07/2010EP2171163A2 Device for extracting a material from the bed of a body of water and associated method
04/07/2010CN101275207B Thermal processing method for H2S-corrosion-resistant tool joint for petroleum drill pipe
04/06/2010US7690696 Wedge thread with torque shoulder
04/06/2010US7690446 Single cone rock bit having inserts adapted to maintain hole gage during drilling
04/06/2010CA2565898C Electrical connection assembly
04/06/2010CA2563177C Jacking frame having a wellhead centralizer
04/06/2010CA2438561C Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal
04/06/2010CA2345560C Rotary steerable drilling tool
04/06/2010CA2306012C Method of retarding sand build up in heavy oil wells
04/03/2010CA2680996A1 Method of sorting used tubular goods prior to reclaiming or reconditioning
04/01/2010WO2010037137A2 Downhole device actuator and method
04/01/2010WO2010036437A1 Coiled tubing quick connect
04/01/2010WO2010035248A1 Guide frame for riser tower
04/01/2010WO2009158327A3 A device and system for well completion and control and method for completing and controlling a well
04/01/2010WO2009155249A3 Extrusion-resistant nose seal
04/01/2010US20100078223 Plate structure for earth-boring tools, tools including plate structures and methods of forming such tools
04/01/2010US20100078222 Matrix turbine sleeve and method for making same
04/01/2010US20100078173 Downhole device actuator and method
04/01/2010CA2741765A1 Downhole device actuator and method
03/2010
03/31/2010EP2169178A2 Matrix turbine sleeve and method for making same
03/31/2010EP2169177A1 Smooth bore latch for tie back receptacle extension
03/31/2010EP2167784A1 Control line running system
03/31/2010EP2167783A1 Threaded element of a component with opposed threading portions and corresponding tubular threaded connection
03/31/2010EP2167782A1 Rock-drilling equipment as well as female and male parts therefor
03/31/2010EP2167735A1 Device and method for providing strain measurements of insulated pipes
03/31/2010EP1534919B1 Suppression element for vortex-induced vibrations, construction kit, apparatus for extracting minerals, and mold
03/31/2010CN201433747Y Vine pipe device for oil and gas wells
03/31/2010CN201433724Y Drilling tool stabilizer suitable for gas drilling horizontal well
03/31/2010CN201433723Y Built-in piston type double outside diameter stabilizer
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