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DEVICE FOR TILTED DIRECTIONAL DRILLING WITH AUTOMATIC ADJUSTMENT AND METHODS OF DRILLING TILTED DIRECTIONAL WELLS
DEVICE FOR TILTED DIRECTIONAL DRILLING WITH AUTOMATIC ADJUSTMENT AND METHODS OF DRILLING TILTED DIRECTIONAL WELLS
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机译:自动调整倾斜定向钻井的装置及倾斜定向井的钻井方法
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摘要
An apparatus for drilling a directional wellbore is disclosed that in one non-limiting embodiment includes a drive for rotating a drill bit, a deflection device that enables a lower section a drilling assembly to tilt within a selected plane when the drilling assembly is substantially rotationally stationary to allow drilling of a curved section of the wellbore when the drill bit is rotated by the drive and wherein the tilt is reduced when the drilling assembly is rotated to allow drilling of a straighter section of the wellbore, and a sensor that provides measurements relating a direction of the drilling assembly for drilling the wellbore along a desired direction.
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