MakeUp Torque

Part of the strength of the drillstring and the seal for the fluid conduit are both contained in the tool joints. It is very important therefore, that the correct make-up torque is applied to the tool joints. If a tool joint is not torqued enough, bending between the box and pin could cause premature failure. Also, the shoulder seal may not be properly seated, resulting in mud leaking through the tool joint, causing a washout. Exceeding the torsional yield strength of the connection by applying too much torque to the tool joint could cause the shoulders to bevel outward or the pin to break off the box. Recommended make up torques for drill pipe and tool joints are listed in the API RP 7G.

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Responses

  • algisa lo duca
    Why is makeup torque important?
    8 years ago
  • fre-weini
    Why excess make up torque is applied on a drill string?
    8 years ago
  • cormac
    What is make up torque in well drilling?
    6 years ago
  • marie burger
    CAN DRIILLPIPE TORQUE EXCEED MAKE UP TORQUE?
    7 months ago
  • Eugenia
    How to calculate make up torque of drill pipe?
    11 days ago

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