Directional direct headers are mainly used with bent shell screw drill bits for directional drilling. The inclinometer is seated in the directional key sleeve, used for building angle, turning azimuth, sidetracking in directional wells, and correcting deviation in straight wells. Directional bent sub is one of the main tools for building angle with power drilling tools. Under the action of the bent sub, the power drilling tools exert a continuous lateral force on the bit, making the bit continuously cut the wellbore laterally and drill a curved wellbore trajectory. They have the advantages of simple structure, convenient use, and low cost.
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Directional direct heading is mainly used with bent shell screw drill bit for directional drilling. The inclinometer is placed 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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