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TitleSeismic interpretation of the Windsor-Kennetcook Basin
AuthorBianco, E
SourceGeological Survey of Canada, Open File 7452, 2013, 31 pages, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
ProvinceNova Scotia
NTS11D; 11E; 11F; 21A; 21B
Lat/Long WENS-66.0000 -60.0000 46.0000 44.0000
Subjectsgeophysics; stratigraphy; structural geology; seismic interpretations; stratigraphic analyses; source rocks; geophysical surveys; seismic surveys; geophysical interpretations; Windsor-Kennetcook Basin; Horton Formation; Cheverie Formation; Windsor Group; Meguma Formation; Scotch Village Formation; Carboniferous
Illustrationsgeological sketch maps; seismic cross-sections; stratigraphic cross-sections; cross-sections, structural
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramShale Reservoir Characterization, Geoscience for New Energy Supply (GNES)
ProgramProgram of Energy Research and Development (PERD)
Released2013 09 06
AbstractWe examine the Carboniferous stratigraphy in the Windsor-Kennetcook sub-basin of Nova Scotia with a regard for evaluating the petroleum system potential of the organic source rocks within the Horton Formation. A variety of geologic information was synthesized including geologic maps, logs and tops from 10 petroleum exploration wells, 18 seismic lines, and airborne gravity and magnetic surveys. Timeto-depth relationships and synthetic seismograms were computed to correlate the major stratigraphic units and seismic reflection patterns. Additionally, a so-called data quality attribute was computed along the seismic lines, serving not only as a quality indicator, but also facilitating structural interpretation at length scales larger than individual fault traces. Interpretation of these data was done using open-source tools; OpendTectTM for seismic interpretation, and QGISTM for geo-spatial analysis and visualization. Cross-section interpretations and time-structure maps of the Horton Bluff intervals suggest the presence of a dextral strike-slip flower structure encompassing the entirety of the sub-basin. Due to the sparse seismic line spacing relative to the structural complexity, interpretations in map view remain rather cursory. The structural framework and deformation history have implications for the present day state of stress and geomechanical behaviour, which is inherently linked to the prospectivity for petroleum development.
Summary(Plain Language Summary, not published)
The exploration for shale gas in eastern Canada is in its early days. In Nova Scotia, three wells have been drilled and fracked in the organic matter rich Carboniferous Horton Bluff Formation of the Windsor-Kennetcook sub-basin. No commercial production was established. The 2012-2013 PERD-funded project in Nova Scotia consists of a detailed interpretation of the seismic data in the Windsor-Kennetcook area. The seismic data, integrated with surface geology, well and potential field data results in the identification of a number of faults cutting through the geological succession overlying the deep shale target.