Patent ID: 7028789

Claim:
A tubing conveyed drilling assembly for use in drilling of a wellbore, comprising: (a) a drilling motor for generating a rotary force in response to the flow of a drilling fluid through the drilling motor; (b) a steering device for controlling the drilling direction of the drilling assembly, said steering device including: (i) a plurality of force application members arranged around and extending radially outward from the steering device, each said force application member adapted to apply an adjustable amount of force to the wellbore inside, upon the application of power thereto; (ii) a common power unit operably coupled to said force application members, said common power unit being disposed uphole of said drilling motor and supplying power to an associated said force application members; (iii) a separate control device associated with each said force application member for controlling the power provided to each associated said force application member; and (c) at least one conductor placed along a length of the tubing for providing one of (i) power, and (ii) two-way data transmission to the drilling assembly.