Deep Borehole Field Test: Characterization Borehole Science Objectives (original) (raw)
Deep Borehole Laboratory and Borehole Testing Strategy: Generic Drilling and Testing Plan
2019
This report presents a generic (i.e., site-independent) preliminary plan for drilling, testing, sampling, and analyzing data for a deep characterization borehole drilled into crystalline basement for the purposes of assessing the suitability of a site for deep borehole disposal (DBD). This research was performed as part of the deep borehole field test (DBFT). Based on revised U.S. Department of Energy (DOE) priorities in mid-2017, the DBFT and other research related to a DBD option was discontinued; ongoing work and documentation were closed out by the end of fiscal year (FY) 2017. This report was initiated as part of the DBFT and documented as an incomplete draft at the end of FY 2017. The report was finalized by Sandia National Laboratories in FY2018 without DOE funding, subsequent to the termination of the DBFT, and published in FY2019. This report presents a possible sampling, testing, and analysis campaign that could be carried out as part of a future project to quantify geochemical, geomechanical, geothermal, and geohydrologic conditions encountered at depths up to 5 km in crystalline basement.
Advances in hydrogeologic testing of mineral exploration boreholes
Mining companies integrate geotechnical investigations with mineral exploration coring programs to minimize cost and to streamline mine design and permitting. The classic Lugeon method of testing is a widely accepted method for rock permeability estimates. Recent advances in testing equipment, such as down-hole shut-in capability, enable implementation of improved testing and analysis methods that provide a more detailed picture of hydrogeologic conditions, without significantly increasing characterisation costs. Improved knowledge of pore pressure and hydrogeologic flow regimes elevates the confidence in and accuracy of pre-mine modeling efforts.
Preliminary Results of a Seismic Borehole Test Using Downhole Shaped Charges at the DOE Hanford Site
Symposium on the Application of Geophysics to Engineering and Environmental Problems 1994, 1994
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Data Series
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