Successful Sampling Strategy Advances Laboratory Studies of NMR Logging in Unconsolidated Aquifers
AuthorBehroozmand, Ahmad A.
Barfod, Adrian A. S.
Ferré, Ty P. A.
Vilhelmsen, Troels N.
Johnson, Carole D.
Christiansen, Anders V.
AffiliationUniv Arizona, Dept Hydrol & Water Resources
MetadataShow full item record
PublisherAMER GEOPHYSICAL UNION
CitationSuccessful Sampling Strategy Advances Laboratory Studies of NMR Logging in Unconsolidated Aquifers 2017, 44 (21):11,021 Geophysical Research Letters
JournalGeophysical Research Letters
Rights©2017. American Geophysical Union. All Rights Reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractThe nuclear magnetic resonance (NMR) technique has become popular in groundwater studies because it responds directly to the presence and mobility of water in a porous medium. There is a need to conduct laboratory experiments to aid in the development of NMR hydraulic conductivity models, as is typically done in the petroleum industry. However, the challenge has been obtaining high-quality laboratory samples from unconsolidated aquifers. At a study site in Denmark, we employed sonic drilling, which minimizes the disturbance of the surrounding material, and extracted twelve 7.6 cm diameter samples for laboratory measurements. We present a detailed comparison of the acquired laboratory and logging NMR data. The agreement observed between the laboratory and logging data suggests that the methodologies proposed in this study provide good conditions for studying NMR measurements of unconsolidated near-surface aquifers. Finally, we show how laboratory sample size and condition impact the NMR measurements.
Note6 month embargo; published online: 4 November 2017.
VersionFinal published version
SponsorsDanish Council for Independent Research, FNU; Stanford University