Full text loading...
-
Geometrical and Induction Electromagnetic Soundings Resolution Capabilities for Geological Engineering Investigations
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 24th European Meeting of Environmental and Engineering Geophysics, Sep 2018, Volume 2018, p.1 - 5
Abstract
Summary
Recently developed and currently available on the market multichannel broadband multifunction EM instruments of the generation 5+ have levelled the costs of one measuring channel as well as field survey productivity during investigations of shallow geoelectric sections (up to 200m) with geometrical and induction EM soundings methods. Hence, it raises question of comparing resolution capabilities, sensitivity, productivity of geometrical and induction EM soundings methods during investigations of shallow sections. Research carried out by the authors has shown that the control source frequency domain electromagnetic sounding method (CSFDEMS or formerly FDEMS-IP) is the most sensitive to variation of parameters in the geoelectric sections, and subsequently, the most accurate for mapping boundaries of geoelectric section’s layers. The FDEMS method was developed in former USSR in the 50s of previous century together with MT and TEM and was mainly unknown in western countries. Since then, extensive FDEMS method field application experience has been accumulated and with new capabilities of recently developed equipment and software it became sensitive, highly productive and EM noise resistant method.
© EAGE Publications BV