Specifications include, but are not limited to: Rotosonic drilling is a drilling technique that uses resonant sonic frequencies to drill, core and case boreholes. This coring method utilizes high frequency resonance to eliminate or minimize the friction between the subsurface material being encountered and the tooling/core barrel being advanced. This allows both efficient penetration and maximum core recovery in a variety of subsurface conditions. During drilling, the resonant energy is transferred down the drill string to the bit face at various sonic frequencies. This type of drilling is ideal for collecting point data to support our geologic mapping grants (State map, Great Lakes Geologic Mapping Coalition, US Forest Service, etc. The WGNHS wishes to do drilling for depths of up to 600 feet deep at various locations throughout the State of Wisconsin.
