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)
04/2014
04/24/2014WO2014062753A1 Friction welded heavy weight drill pipes
04/24/2014WO2014062516A1 Pressure actuated ported sub for subterranean cement completions
04/24/2014WO2014062172A1 Drill string constant velocity connection
04/24/2014WO2014062064A1 Midwater arch system
04/24/2014WO2014060717A2 Improvements relating to buoyancy-supported risers
04/24/2014US20140110129 Hydraulic disconnect
04/24/2014US20140110127 Autonomous fluid control system having a fluid diode
04/24/2014US20140110101 Well Tubular, Coating System and Method for Oilfield Applications
04/24/2014CA2830056A1 Flexible casing guide running tool
04/23/2014EP2721247A1 Kobe sub with inflow control, wellbore tubing string and method
04/23/2014EP2721245A1 Self contained marine riser fairing
04/23/2014EP2721244A2 Riser assembly and method
04/23/2014CN203559893U Sand mixing equipment manifold
04/23/2014CN203559837U Coring pipe structure used for drilling tool
04/23/2014CN203559806U Hydraulic connecting rod type casing centralizer
04/23/2014CN203559805U Anti-eccentric-wear oil extraction device
04/23/2014CN203559804U Connection structure of abrasion resistant ring and joint in drilling rig
04/23/2014CN203559803U Stabilizing and sealing mechanism suitable for driving head of sleeve pipe
04/23/2014CN203559802U Inner tube joint on drill rod
04/23/2014CN203559801U Connection structure for inner tube and nipple of drill rod
04/23/2014CN203559800U Connecting pipe structure used for drilling tool
04/23/2014CN203559799U Protection joint of drill rod
04/23/2014CN203559798U Double-external-diameter drilling rod joint
04/23/2014CN203559797U Flexible rotating lifting short section for perforating with pressure in coiled tubing
04/23/2014CN203559796U Elastic clamp blocking head
04/23/2014CN203559795U Diversion joint for drilling fluid
04/23/2014CN203559794U Guide sleeve for core drill
04/23/2014CN203559793U Drill rod and drilling machine
04/23/2014CN203559771U Piling drilling tool
04/23/2014CN103748315A Cement head with hammer union
04/23/2014CN103748312A Systems and methods for locking swivel joints when performing subterranean operations
04/23/2014CN103748311A Self contained marine riser fairing
04/23/2014CN103748307A Methods and systems for controlling torque transfer from rotating equipment
04/23/2014CN103742500A Hinge pin component and piling machinery
04/23/2014CN103742086A Long spiral drilling machine drill rod automatic clamping device
04/23/2014CN103742084A Variable gauge stabilizer
04/23/2014CN103742083A Drill stem pipe sleeve assembly for rotary drilling rig
04/23/2014CN103742082A Drill pipe coupler for raise boring machine
04/23/2014CN103742081A Double-aperture split type thread locking device for drilling tools
04/23/2014CN103742080A Composite driving drive rod
04/23/2014CN102852457B Follow-up drilling machine for down-hole hammer casing pipe
04/23/2014CN102227541B Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using same
04/23/2014CN102016220B Aluminum riser assembly
04/22/2014US8702350 Riser assembly
04/22/2014US8701785 Shrinkable sleeve stabilizer
04/22/2014US8701783 Apparatus for and method of deploying a centralizer installed on an expandable casing string
04/22/2014US8701775 Completion of lateral bore with high pressure multibore junction assembly
04/22/2014US8701759 Casing centralizer
04/22/2014CA2740682C Insertable surface-driven pump
04/22/2014CA2659093C System and method for hard line communication with mwd/lwd
04/17/2014WO2014059396A1 Selective deployment of underreamers and stabilizers
04/17/2014WO2014059098A1 Multilateral y-block system
04/17/2014WO2014059090A1 Alignment assembly
04/17/2014WO2014059086A1 Non-threaded tubular connection
04/17/2014WO2014059081A1 Selective orientation and location system
04/17/2014WO2014058981A1 Threaded connector locking device
04/17/2014WO2014058967A2 Anti-rotation system for box and pin connection
04/17/2014WO2014058428A1 Method and apparatus for mixing fluid flow in a wellbore using a static mixer
04/17/2014WO2014058412A1 System and method for circumferentially aligning a downhole latch subsystem
04/17/2014WO2014058327A1 Pipe connection tool and methods
04/17/2014WO2013130977A3 A continuous rotary drilling system and method of use
04/17/2014US20140103643 Friction welded heavy weight drill pipes
04/17/2014US20140103640 Threaded connector locking device
04/17/2014US20140102808 Drill string components having multiple-thread joints
04/17/2014US20140102807 Inductive Coupler
04/17/2014US20140102806 Tubular component for drill stem capable of being cabled, and method for mounting a cable in said component
04/17/2014US20140102804 Agitator sub
04/17/2014US20140102720 Permeability Modification
04/17/2014US20140102715 Sucker rod apparatus and method
04/17/2014US20140102714 Drilling tool system and method of manufacture
04/17/2014US20140102696 Supported Connection Assembly
04/16/2014EP2718531A2 Riser system
04/16/2014CN203547703U Multifunctional well drilling mechanism with torque feedback
04/16/2014CN203547686U Integrated sand prevention pipe column
04/16/2014CN203547656U Novel backflow-preventing closing-free heat preservation combined well mouth
04/16/2014CN203547581U Groove spiral pipe drill stem
04/16/2014CN203547580U Vibration reduction and disengagement prevention device of sucker rod
04/16/2014CN203547579U V-shaped stabilizer for eccentric drilling device
04/16/2014CN203547578U Integral multifunctional inclined shaft sucker rod centralizer
04/16/2014CN203547577U Wear-resistant belt surface dressing-welding type centralizer
04/16/2014CN203547576U Casing centralizer
04/16/2014CN203547575U Roller centralizer
04/16/2014CN203547574U Safety joint of sliding sleeve
04/16/2014CN203547573U Dill pipe connector with line tensioning clip
04/16/2014CN203547572U Counter buckling device for connecting kelly bar with single drilling pipe
04/16/2014CN203547571U Connector for sleeving and dragging PE (Polyethylene) pipeline
04/16/2014CN203547570U Key sleeve, hub and rotary drilling rig
04/16/2014CN203547569U Expansion pipe
04/16/2014CN203547568U Expansion pipe thread connecting structure
04/16/2014CN203547567U Direct connection type variable thread width oil pipe threads
04/16/2014CN203547566U Clamp head capable of preventing oil stealing and gas stealing
04/16/2014CN203547565U Thermal production well oil pipe device, thermal power compensation device and elongation control device
04/16/2014CN203547564U Rolling friction anti-eccentric hollow sucker rod
04/16/2014CN203547563U Tail pipe device capable of being placed at hole bottom and conducting tie-back
04/16/2014CN203547562U Integrated drilling and cutting drill stem
04/16/2014CN203547561U Completion string for oil and gas well
04/16/2014CN203547560U Double-wall drill pipe
04/16/2014CN203547559U Drill rod
04/16/2014CN203547558U Drill rod used for ocean exploration
04/16/2014CN203547557U Novel oil pipe device capable of preventing eccentric wear of sucker rod
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