METHOD AND APPARATUS FOR LOCATING GEOTHERMAL SOURCES OF ENERGY

摘要

A method and apparatus for locating subterranean sources of geothermal energy characterized by discharging test energy into the earth at a depth sufficient to be substantially insulated from surface temperature variations, removing heat from the earth at the discharge position to establish a sphere of cooling at the discharging position subject to heat from the geothermal source, and detecting changes in the conductivity of the earth between the discharging position and a plurality of detecting positions at or near the surface substantially equally spaced about an axis of reference extended from the discharging position vertically to the surface to determine the azimuthal orientation of the source of geothermal heat from the axis by changes in the conductivity of the earth between said discharging position and the detecting positions indicent to geothermal warming of the sphere of cooling.