Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1996-11-27
1998-10-20
Snow, Walter E.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
324345, 324359, G01V 302, G01V 304, G01V 300
Patent
active
058251880
ABSTRACT:
An electromagnetic method is disclosed that can be used to map, track, and monitor subsurface water or solutions and related geologic structure including: groundwater, groundwater channels, groundwater structures, subsurface pollution plumes, locate the source of springs or seeps, map interconnected fracture or porous zones, map leaks in earthen dams, map leaks in drain fields, monitor changes in subsurface water flow, monitor changes in ion concentration in groundwater, monitor in situ leaching solution, monitor movement of heap leaching solutions, monitor changes in subsurface redox or reaction fronts, monitor underground chemical reactions, monitor subterranean bioreactions, or other subsurface waters and related geologic structures. An electric current is injected directly into the water or solution that is to be mapped, tracked, or monitored. It is also necessary to provide a return path for the injected electrical current. The return path for surface expressions is provided by wire to another contact point or points with the earth. The resulting surface magnetic and electric field is measured and interpreted to determine what is occurring in the subsurface.
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Montgomery Jerry R.
Phillips Thomas A.
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