Advanced Drilling Corporation

Larry J Weick

Robert J Horstmeyer

A down-hole drilling apparatus having a drill tool assembly with a cutting head at one end connected to an umbilical which extends to a retrieval reel on the surface. The umbilical provides electrical power, drilling fluid and means for instrumentation and control signals to be transmitted between the drill tool assembly and a processing device on the surface. The drill tool assembly can propel itself into or out of a bore hole by the cyclical actuation of anchor and ram units or change the direction of drilling by actuation of thruster assemblies in response to control signals sent manually by an operator or automatically by the processing device.

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West Garland, TX, United States of America

Larry J Weick