System and method for steering in a downhole environment using vibration modulation

摘要

A system and method are provided for using controlled vibrations to bias a drilling direction of a bottom hole assembly (BHA) in a borehole. In one example, the system includes a movement mechanism and a vibration control mechanism. The movement mechanism is configured to use mechanical energy provided by a mechanical energy source to enable translational movement of a first surface relative to a second surface to allow the first surface to repeatedly impact the second surface to produce a plurality of vibration beats. The vibration control mechanism is configured to influence a drilling direction in which the BHA is drilling by controlling an amplitude of the vibration beats to regulate an impact force between the first surface and the second surface, where the amplitude is controlled based on directional information corresponding to the BHA.

主权项

1. A system for using controlled axial vibrations to bias a drilling direction of a bottom hole assembly (BHA) in a borehole comprising:
a movement mechanism configured to use mechanical energy provided by a mechanical energy source to enable translational movement of a first surface relative to a second surface to allow the first surface to repeatedly impact the second surface to produce a plurality of axial vibration beats along a central axis of the BHA; and a vibration control mechanism configured to influence a drilling direction in which the BHA is drilling by controlling an amplitude of the axial vibration beats to regulate an impact force between the first surface and the second surface, wherein the amplitude is controlled based on directional information corresponding to the BHA.