Patent ID: 8590638

Claim:
A system for drilling a deviated wellbore, comprising: a monolithic structure having an uphole end, a bottomhole end, a bit body section, and a steering body section, wherein the monolithic structure does not have a field breakable connection below the uphole end, wherein the bit body section comprises: a lead end tier adjacent the bottomend of the monolithic structure; and a second tier between the lead end tier and the uphole end of the monolithic structure having a diameter greater than a diameter of the lead end tier; a field breakable connection located on the uphole end of the monolithic structure, the field breakable connection is an American Petroleum Institute (API) connection having a pin-up or a pin-down configuration; a plurality of cutters mounted on the bit body section; a plurality of steering actuators mounted on the bit body section; and a control system mounted within the steering body section to control the plurality of steering actuators and thus the direction of drilling while forming the deviated wellbore.