Our Portfolio: Monitoring Projects

CMST Index | Monitoring | SCFA

Mapping DNAPL Transport and Contamination in Sedimentary and Fractured Rock Aquifers with High Resolution Borehole Seismic Imaging

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Technology
Deployment
Fact Sheets:
AR #2137
AR #2145

SCFA Midyear Review

 

TTP#: SF1-1-SS13; Tech ID: 3045

Project Overview
Currently the only technology to map DNAPL distribution is extrapolating between point measurements in boreholes. This is often inadequate because of the heterogeneity in both sedimentary and fractured rock aquifers, and the likelihood of missing important features that do not intersect the boreholes. The proposed technology will directly image areas not sampled by boreholes. It aims to provide high resolution images of DNAPL distribution changes between and away from boreholes, and potentially direct detection of DNAPL, providing detailed information on geologic structure which can be used to improve predictive transport models. It will monitor effects of remediation on DNAPls source-term removal with crosswell and single well seismic and possibly radar measurements. In fractured systems, it will directly image not only the fracture systems but the important fractures controlling DNAPL distribution, changes over time, and potentially DNAPL within the fractures.

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