Patent ID: 8757294

Claim:
A method for using dynamic motion of a drilling system in a borehole being drilled or cored in an earth formation by the drilling system, the drilling system comprising a drill bit and a drill-string, to control the drilling system, comprising: providing a section of the drilling system to control dynamic interactions between the drilling system and an inner surface of said borehole, wherein: the section of the drilling system is configured to provide that interactions between the section of the drilling system and the inner surface resulting from dynamic motion of the drilling system in the borehole during the drilling process vary circumferentially around the section of the drilling system; the section of the drilling system is configured to provide that the interactions between the section of the drilling system and the inner surface are generated by random dynamic motion of the drilling system in the borehole; the section of the drilling system does not comprise a push the drill bit mechanism comprising actuators deployed from the drilling system and configured to move outward from the drilling system and apply a force against the inner surface; and the section of the drilling system does not comprise a point the drill bit mechanism comprising an angled bend in the drill-string; maintaining the section of the drilling system geostationary in the borehole during the drilling process; and using the controlled dynamic interactions between the section of the drilling system and the inner surface of said borehole to steer the drilling system.