Main functions Cabled drill pipe is an important part of directional drilling equipment. It is a component with complex forces and harsh working conditions during the directional drilling process.
Its main functions include:
1) Transfer the axial pressure exerted by the drill bit during the drilling process to the drill bit, and bear the reverse torque of the bottom hole motor;
2) When tripping, transfer the push-pull force exerted by the drilling rig on the drilling tool;
3) As a medium channel, the flushing fluid is transported to the bottom of the well. In order to facilitate the handling of accidents in the hole. Cable drill pipe can be used for both directional drilling construction and conventional rotary drilling construction. Therefore, the cabled drill pipe should also meet the requirements of applying torque to the drill bit during conventional rotary drilling.
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