VARIED RPM DRILL BIT STEERING
First Claim
1. A method of steering a drill bit while drilling a wellbore, the method comprising:
- periodically increasing a rotational speed of the drill bit while drilling the wellbore; and
the rotational speed of the drill bit being increased when an axis of the drill bit is oriented in a desired azimuthal direction relative to an axis of a drill string.
1 Assignment
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Accused Products
Abstract
A method of steering a drill bit while drilling a wellbore can include periodically increasing a rotational speed of the drill bit while drilling the wellbore, with the rotational speed being increased when an axis of the drill bit is oriented in a desired azimuthal direction relative to a drill string axis. A directional drilling system can include a drill string having a bend interconnected therein, a drill bit, and a controller which selectively increases a rotational speed of the drill bit when an axis of the drill bit is oriented in a desired azimuthal direction relative to an axis of the drill string above the bend. Another method of steering a drill bit while drilling a wellbore can include interconnecting a brake in a drill string, and periodically decreasing a braking force of the brake as the drill bit is rotated.
42 Citations
30 Claims
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1. A method of steering a drill bit while drilling a wellbore, the method comprising:
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periodically increasing a rotational speed of the drill bit while drilling the wellbore; and the rotational speed of the drill bit being increased when an axis of the drill bit is oriented in a desired azimuthal direction relative to an axis of a drill string. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A directional drilling system, comprising:
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a drill string having a bend interconnected therein; a drill bit; and a controller which selectively increases a rotational speed of the drill bit when an axis of the drill bit is oriented in a desired azimuthal direction relative to an axis of the drill string above the bend. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of steering a drill bit while drilling a wellbore, the method comprising:
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interconnecting a brake in a drill string; and periodically decreasing a braking force of the brake as the drill bit is rotated. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification