I direct your attention to this paper by Kepic, Maxwell and Russell
https://library.seg.org/doi/abs/10.1190/1.1443772?mobileUi=0
Field trials of a seismoelectric method for detecting massive sulfides; Geophysics, vol 60, p365-373, 1995.
UBC had an extensive research effort into the seismoelectric method under the direction of Don Russell. There are other papers and presentations.
Dennis Woods
At 08:42 PM 22/09/2019, James Reid via SEGMIN wrote:
Hi All
I was wondering if anyone out there had any experience with electro-seismics, i.e. using a seismic source to stimulate an electrical response from the ground.
I have recently had a groundwater contamination client request an electro-seismic survey, with the objective of estimating the aquifer permeability ahead of drilling. When I said that the method was pretty niche and of academic interest in comparison with TEM, electrical resistivity imaging or NMR, they said but weve already done some. When I read the report I was underwhelmed to say the least while I think there is some physical basis to the technique (I recall genuine papers by Anton Kepic etc on piezoelectric effects etc), the company in question were pseudoscientific at best in terms of the data processing and interpretation, and their promises to clients. The report had been commissioned (and accepted) by a very major global geotechnical company who had clearly not employed a consultant geophysicist.
There are several companies here in the Antipodes offering electro-seismic surveys. These typically operate on the fringes of mainstream geophysics, offering services to agriculture and groundwater. There is very little information available on the physical basis of the method, or on its practical limitations. Here is a link to one such company (chosen at random I am not picking on them because they are from New Zealand) https://www.atsgeosuite.net/new-page. They have an intriguing sliding price scale, where the client pays more for interpretation to larger depth I wish I had thought of that!
Anyway, I wondered whether anyone had any genuine experience with electro-seismics, and could provide more detail. Is it a mature enough technique that I should be considering it for hydrogeological work? I suspect the answer is no, but I would be interested in any comments.
Cheers,
James
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James Reid, Director Asia-Pacific, Principal Consultant
www.MiraGeoscience.com , tel +61.419 748 009, 45 Ventnor Ave, West Perth WA 6005 Australia
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