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Coupling

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  • DESCRIPTION
DESCRIPTION

Tubing coupling is a kind of oil field drilling tool , which is mainly used for tubing connection . The coupling mainly solves the problem of fatigue fracture caused by stress concentration .

The tubing coupling structure is : the tubing end and the inner wall of the tubing are connected by taper thread , and the tubing end and the tubing are connected by the same thread and the same pitch . It has the characteristics of relieving stress concentration in the root of the outer thread of the pipe connecting with single taper thread . Effectively prevent the accident of oil well string breaking .

The coupling is divided into tubing collar and casing collar .

 

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  • Home
  • News
  • Products
    • Drilling Rig Series
    • Downhole Tools
    • Wellhead Equipment Series
    • Oil Rod Series
    • Coupling
    • Oil Casing
    • Pup Joint
    • Sand Control Screen
    • Pipe Accessories
      • Pipe Fitting
      • Seamless Alloy Steel Pipe
    • Pumping Unit
    • Hydraulic Clamp/Tongs
    • Mud Pump&Accessories
    • Chemicals
    • MWD/APS Series
  • About Us
  • Contact
  • zh_CNZH
  • en_USEN
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