Method and apparatus for seismic prospecting
AssigneeImperial Chemical Industries PLC
InventorRupert R. F. G. H. Goodhart
Life of this patent
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Abstract
A method of seismic prospecting areas having a hard snow covered surface which comprises clearing the snow from a surface strip, laying a line of detonating cord on the surface, covering the cord with a layer of snow, compressing the snow layer to form a stemming layer around the cord, detonating the explosive and recording the reflected or refracted seismic waves. The invention also includes an apparatus comprising a combination of snow ploughs, snow compressor and cord feed means for use in the method.
Claims15
A method of seismic prospecting comprising clearing snow from a strip of hard surface layer which is covered with snow so as to expose said hard layer, laying a line of explosive cord along and in contact with a longitudinal portion of the cleared hard surface, moving snow from along side the cleared strip and covering the line of explosive cord with a layer of said snow, compressing the said snow layer to form a stemming layer around the cord, detonating the explosive and recording the resulting seismic waves after reflection or refraction from subterranean rock layer interfaces.
Dependencies are inferred from the claim text.