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)
05/2010
05/14/2010WO2010027616A3 Electrical transmission between rotating and non-rotating members
05/14/2010WO2009053343A3 Method of radially expanding a tubular element in a wellbore provided with a control line
05/14/2010CA2743011A1 Facility for using fluid in a stretch of water, and associated assembly method
05/14/2010CA2742501A1 Method for installing an operating rig for a fluid in a body of water with a traction unit
05/14/2010CA2742499A1 Method for assembling an operating rig for a fluid in a body of water and associated operating rig
05/14/2010CA2684782A1 Seal arrangement for expandable tubulars
05/13/2010US20100119308 Suppression of vortex induced vibration
05/13/2010US20100116550 Interface and method for wellbore telemetry system
05/13/2010US20100116510 Packaging for encasing an optical fiber in a cable
05/13/2010US20100116509 System and method for aligning a component of a borehole assembly
05/13/2010US20100116499 Internal Release Connector and Method
05/13/2010US20100116487 Internal Release Connector and Method
05/12/2010EP2184437A2 Swellable apparatus and method
05/12/2010CN201462221U Wax precipitation prevention composite piping for oilfield
05/12/2010CN201461759U Petal connector structure of universal shaft assembly
05/12/2010CN201460826U Multi-layered production separate-pumping process pipe column
05/12/2010CN201460767U Bolt connection-type square-head spiral drill pipe
05/12/2010CN201460766U Spiral drill pipe
05/12/2010CN201460765U Detachment-prevention device for extension arm
05/12/2010CN201460764U Abrasion preventing joint of torque reducing sleeve pipe for drill
05/12/2010CN201460763U Centralizer for petroleum logging instrument
05/12/2010CN201460762U Full-hydraulic two-way drill string shock absorber
05/12/2010CN201460761U Threaded joint of waterproof guide tube
05/12/2010CN201460760U High-temperature high-pressure sealing adapter for oil gas exploitation drill stem
05/12/2010CN201460759U Power head transition key bushing
05/12/2010CN201460758U Quick connector of riser pipe
05/12/2010CN201460757U Oil-pipe zero-clearance coupling device
05/12/2010CN201460756U Side-opening type quick connector with protecting mechanism
05/12/2010CN201460755U Sucker rod for oil sucking machine with flexible vibration damping device
05/12/2010CN201460754U Sucker rod with eccentric wear prevention
05/12/2010CN201460753U Novel sucker rod
05/12/2010CN201460752U Three-segment spiral extra-heavy drill rod
05/12/2010CN201460724U Permafrost steam drilling pile machine
05/12/2010CN201460723U Combined drilling tool with drill hole control grouting device
05/12/2010CN201460715U Transmission shaft anti-drop device of screw drilling tool
05/12/2010CN201460713U Novel anti-dropping transmission shaft assembly
05/12/2010CN101705803A Well-flushing oil-drainage device of oil pumping pipe column
05/12/2010CN101705795A Vacuum composite heat-insulating pipeline connecting structure
05/12/2010CN101705794A Bidirectional anti-fatigue short circuit for drill column
05/12/2010CN101705793A Aluminum alloy drill rod end structure and process for upsetting same
05/12/2010CN101705792A Rope drilling rod with large caliber
05/12/2010CN101705424A N80-grade welding petroleum casing steel and manufacture method thereof
05/12/2010CN101166928B Pseudo two-step connection member
05/11/2010US7714741 Method and system for performing operations and for improving production in wells
05/11/2010US7712539 Riser for connection between a vessel and a point at the seabed
05/11/2010US7712523 Top drive casing system
05/11/2010US7712519 Transverse magnetization of casing string tubulars
05/11/2010CA2571787C Improved well servicing tool storage system for subsea well intervention
05/11/2010CA2469875C Modular thread connection with high fatigue resistance
05/06/2010WO2010050991A1 Well flow control systems and methods
05/06/2010WO2010049677A1 Anti-whirl drill bits, wellsite systems, and methods of using the same
05/06/2010WO2010049674A1 Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using the same
05/06/2010WO2010049664A1 Cement head
05/06/2010WO2010049602A1 Method for lightening a riser with optimized wearing piece
05/06/2010WO2010019675A3 Umbilical management system and method for subsea well intervention
05/06/2010WO2009134859A3 A force balancing system for use with a well bore tool
05/06/2010WO2009077735A8 Joining metal pipes
05/06/2010US20100111614 Underwater buoy with modular members
05/06/2010US20100108397 Earth-boring tools having threads for affixing a body and shank together and methods of manufacture and use of same
05/06/2010US20100108394 Downhole Tool
05/06/2010US20100108321 Apparatus for venting an annular space between a liner and a pipeline of a subsea riser
05/06/2010US20100108174 Screw thread safeguard of drill stems
05/06/2010CA2742365A1 Well flow control systems and methods
05/06/2010CA2741618A1 Anti-whirl drill bits, wellsite systems, and methods of using the same
05/05/2010EP2181240A1 Centering structure for tubular member and method of making same
05/05/2010EP2181237A1 Drill device having a rotary-vibratory drive
05/05/2010CN201448531U Thread connecting piece of variable-cone metallic seal, and petroleum casing pipe and collar employ same
05/05/2010CN201448359U Footstep bearing
05/05/2010CN201448080U Wash-over milling fishing integrated tool
05/05/2010CN201448071U Integral type wide-vane spiral drill pipe for wind pressure drilling
05/05/2010CN201448070U Wide blade clamping helix drilling rod
05/05/2010CN201448069U Automatic erection device for drilling rod
05/05/2010CN201448068U Mechanical multidirectional vibration absorber
05/05/2010CN201448067U Mechanical multi-directional shock absorber
05/05/2010CN201448066U Monolithic drill rod
05/05/2010CN201448065U Double-step integral drill stem
05/05/2010CN201448064U Well drilling rod of anode loss protection
05/05/2010CN101701511A Sucker rod anti-tripping connecting device and manufacturing method thereof
05/05/2010CN101701510A DN80X6 high-voltage thermal expansion movable pipeline
05/05/2010CN101701506A Drilling tool structure with three stabilizers
05/04/2010US7708498 Soft stop for maximum riser tensioner stroke
05/04/2010US7708077 Retrieval of bottom hole assembly during casing while drilling operations
05/04/2010US7708064 Wellbore pipe centralizer having increased restoring force and self-sealing capability
05/04/2010US7708063 Centralizer tool, a centralizing method and a method of making a centralizer tool
05/04/2010CA2416645C Combined liner and matrix system
04/2010
04/29/2010WO2010048072A2 Method for installing wellbore string devices
04/29/2010WO2010025313A3 Drilling out casing bits with other casing bits
04/29/2010WO2009156739A3 Reaming tool
04/29/2010WO2009152042A3 Mechanically engaged and releasable connection system
04/29/2010US20100102553 Threaded tubular connection which is leak-proof under internal and external successive pressure loads
04/29/2010US20100101865 Device for protecting a geotechnical or geophysical probe
04/29/2010US20100101863 Sonic drill rod with external surface features
04/29/2010US20100101780 Process of applying hard-facing alloys having improved crack resistance and tools manufactured therefrom
04/29/2010US20100101676 Composite Tubing
04/29/2010CA2737931A1 Method for installing wellbore string devices
04/28/2010EP2180133A1 Expansion joint with communication medium bypass
04/28/2010EP2179123A2 Method and device for cleaning and sealing a well
04/28/2010CN201443359U Insulated electrothermal rod collar
04/28/2010CN201443358U Insulated electrothermal rod
04/28/2010CN201443324U Expansion waterpower anchor
1 ... 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 ... 278