The directional direct head is mainly used with bent housing screw drill directional drilling tools. The inclinometer is seated in the directional key sleeve, used for building angle, turning azimuth, sidetracking in directional wells, and correcting deviation in vertical wells. It has the advantages of simple structure, convenient use, and low cost.
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Directional bent sub is used for directional drilling of straight-body screw drill string. Directional bent sub is one of the main tools for building inclination in power drill string. Under the action of the bent sub, the power drill string gives a continuous lateral force to the bit, making the bit continuously cut the wellbore laterally, drilling a curved wellbore trajectory. It has the advantages of simple structure, convenient use and low cost.
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