Sensitivity analysis of central-loop surface NMR data

Ahmad A. Behroozmand, Gianluca Fiandaca, Esben Auken

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingspeer-review

1 Citation (Scopus)

Abstract

Surface NMR, also called magnetic resonance sounding (MRS) for 1D applications, has emerged as a promising geophysical method that is used to assess aquifer properties. A typical coincident-loop MRS measurement consists of a large wire loop deployed on the surface, acting as both a transmitter and a receiver. In this study, we present central-loop MRS data and discuss how this loop configuration helps better estimate the subsurface model as compared with the typical coincident loop configuration. We demonstrate sensitivity kernels for coincident and central loop configurations and describe advantages of central-loop MRS data in terms of superior behavior of the sensitivity function, reduced noise level, higher signal level, and improved resolution matrix. With no extra time and effort, the results of our field example represent an improved model of the area when central loop configuration is employed. Our results are in a very good agreement with complementary geophysical and borehole data and with hydrologic model of the area.

Original languageEnglish
Title of host publication28th Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015, SAGEEP 2015
PublisherEnvironmental and Engineering Geophysical Society (EEGS)
Pages434-438
Number of pages5
ISBN (Electronic)9781510802483
Publication statusPublished - 2015
Externally publishedYes
Event28th Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015, SAGEEP 2015 - Austin, United States
Duration: 22 Mar 201526 Mar 2015

Publication series

Name28th Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015, SAGEEP 2015

Conference

Conference28th Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015, SAGEEP 2015
Country/TerritoryUnited States
CityAustin
Period22/03/1526/03/15

Programme Area

  • Programme Area 2: Water Resources

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