Radiation pattern for P and S waves emitted by a seismic source in a borehole. Experimental work in relatively homogeneous granite suggests that the derived relationship adequately describes the radiation pattern for both explosive sources and acoustic transducers, placed in fluid-filled boreholes. Technique developed to estimate Q and locate discrete fractures in crystalline rock that compose the Hot Dry Rock Geothermal Reservoir at Fenton Hill, New Mexico.--Modified journal abstract.
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