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TitleNew core and downhole geophysical data sets from the Bells Corners Borehole Calibration Facility Ottawa, Ontario
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorCrow, H LORCID logo; Brewer, K D; Cartwright, T J; Gaines, S; Heagle, D; Pugin, A J -M; Russell, H A JORCID logo
SourceGeological Survey of Canada, Open File 8811, 2021, 36 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
RelatedNRCan photo(s) in this publication
File formatreadme
File formatpdf; rtf; xlsx (Microsoft® Excel®); las (LiDAR); wcl (WellCAD Log)
Lat/Long WENS -76.0000 -75.5000 45.5000 45.2500
Subjectsgeophysics; Science and Technology; boreholes; core samples; in-field instrumentation; test facilities; geophysical logging; bedrock geology; basement geology; water levels; meteorology; Hazeldean Fault
Illustrationslocation maps; tables; 3-D diagrams; photographs; geoscientific sketch maps; digital images; profiles; schematic representations; geophysical logs
ProgramGroundwater Geoscience Archetypal Aquifers of Canada
Released2021 09 14
AbstractThe Geological Survey of Canada's deep borehole test site at the Bells Corners Borehole Calibration Facility in Ottawa, Ontario, has been in use since the 1980's for the development and calibration of geophysical logging instrumentation. Cores from six deep boreholes (up to 300 m) are preserved and remain available for research purposes. In 2019, the facility underwent repairs to reopen deep boreholes, replace surface casings, and install atmospheric monitoring equipment. This report documents new laboratory core testing and downhole geophysical logs collected in borehole BC81-2, the most frequently logged of the boreholes at the facility. Core data sets include physical, mechanical, and hydraulic properties, nuclear magnetic resonance, and complex resistivity measurements. The downhole log suite includes televiewer imagery (optical and acoustic), total gamma, full waveform sonic, and fluid measurements (high resolution temperature, conductivity, and flow meter measurements). Digital data are provided in appendices. These data sets support ongoing collaborations at the Facility across a variety of disciplines for geological exploration, geoengineering, and hydrogeological research.
Summary(Plain Language Summary, not published)
The Bells Corners Borehole Calibration Facility was developed by the Geological Survey of Canada (GSC) in the late 1970's in Ottawa, Ontario. The Facility played a significant role in the advancement of Canadian geophysical logging instrumentation for exploration, and continues to provide reference datasets for the calibration of industry, government, and academia's logging tools. In recent years, interest in the Facility is becoming more multi-disciplinary. The need for monitored deep borehole sites in Canada is increasingly important for long-term research into groundwater flow through fractured bedrock. Beginning in 2019, the GSC in collaboration with CanmetMINING and CanmetENERGY, carried out testing on existing rock cores and collected new borehole geophysical logs to modernize the calibration datasets. The results support a broadening scope of research at the Facility in geological exploration, geoengineering, and hydrogeological sectors.

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