A method for drilling a subterranean wellbore includes deploying a drill string in the wellbore, the drill string including a drill bit and a steerable drilling motor. The drill string is automatically rotated at the surface back and forth between first and second opposing rotational directions, rotating in the first direction until a first torque limit is exceeded and rotating in the second direction until a second torque limit is exceeded. A toolface of the steerable drilling motor and a differential pressure across the steerable drilling motor are measured while automatically rotating the drill string. A surface processor processes the measured toolface and differential pressure in combination with a target toolface and a target differential pressure to compute new first and second torque limits. The automatic rotating is repeated using the new first and second torque limits.


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    Title :

    AUTOMATED DIRECTIONAL DRILLING SYSTEM AND METHOD USING STEERABLE DRILLING MOTORS


    Contributors:
    DUPLANTIS STEVEN (author) / LUI KAM (author) / PENA CESAR (author) / SWOBODA JASON (author)

    Publication date :

    2021-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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