I am having a little trouble believing Seismo Electronics' claim that: "Our
geophysicists used our instrument to detect reservoir 2000-4000m below ground
surface", when the only seismic sources they describe are hammers, weight drops
and buffalo guns.
http://groundwaterlocators.com/home/shengli%20project%20brochure.pdf
Greg Hodges
On Monday, September 23, 2019, 01:13:51 p.m. EDT, jeffrey chen via SEGMIN
<[email protected]> wrote:
Hi James,
I happen to know that there is a company (Seismo Electronics, in Houston)
providing Seimoelectric services. Below is the link
http://groundwaterlocators.com/index.html
Also from that website, it shows a published book:
The Seismoelectric Method - Theory and Application
André Revil
Associate Professor at the Colorado School of Mines
Directeur de Recherche at the National Centre for Scientific Research (CNRS)
Abderrahim Jardani
Associate Professor at the University of Rouen
Paul Sava
Associate Professor of Geophysics at the Colorado School of Mines
Allan Haas
Senior Engineering Geophysicist
The edition first published 2015 © 2015 by John Wiley & Sons, Ltd.
http://groundwaterlocators.com/Theory_of_Seismoelectric_Method.html
Regards,
JiupingFrom: SEGMIN <[email protected]> on behalf of Dennis
Woods via SEGMIN <[email protected]>
Sent: Monday, September 23, 2019 8:46 AM
To: SEGMIN <[email protected]>
Cc: Dennis Woods <[email protected]>
Subject: Re: [SEGMIN] Electro-seismics Hi James
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 we’ve 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
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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