Capacitive discharge firing system for providing acoustic sources in the hot dry rock geothermal energy development project

Abstract
The development of a capacitive discharge firing unit designed to initiate electrically exploded foil slapper detonators in a subsurface, high-pressure (5000 psi), high-temperature (> 200/sup 0/C) environment is described. The unit is used to conduct acoustic ranging experiments in deep boreholes (approx. = 10,000 ft) in the Los Alamos Scientific Laboratory Geothermal Hot Dry Rock experiment.

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