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TitleSynthetic seismograms from borehole seismic data and well logs, Beaufort-Mackenzie Basin
AuthorHu, K; Brent, T A; Issler, D R; Chen, Z
SourceGeological Survey of Canada, Open File 6056, 2015, 228 pages, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
ProvinceYukon; Northwest Territories
NTS107; 117
Lat/Long WENS-142.0000 -128.0000 71.5000 68.0000
Subjectsgeophysics; surficial geology/geomorphology; geophysical logging; boreholes; synthetic seismograms; permafrost; freezing ground; ground ice; pressure; resistivity logging; seismic velocities; geothermal gradient; seismic surveys; geophysical surveys; geophysical interpretations; resistivity logging; well log analyses; gamma ray logging; density logging; Beaufort Mackenzie Basin; Cenozoic; Tertiary; Mesozoic; Cretaceous; Jurassic; Triassic; Paleozoic; Permian; Carboniferous; Devonian; Silurian; Ordovician; Cambrian
Illustrationslocation maps; tables; logs; stratigraphic columns; profiles
ProgramGeoscience for New Energy Supply (GNES) - Program Corrdination, Geoscience for New Energy Supply (GNES) - Program Coordination
Released2015 03 24
AbstractBorehole seismic survey data are compiled for 202 wells in the Beaufort-Mackenzie Basin, including vertical seismic profile, check shot and crystal cable surveys. On the basis of the well seismic data, well logs and deviation survey data (for deviated wells), synthetic seismograms are generated for the 202 wells using Well Editor (GeoGraphix, R2007.2). The resulting synthetics are illustrated with a time/depth window, well logs, well seismic data, calculated velocity, as well as stratigraphic information and casing shoe depths. The presentation of results provides key time-depth relationships important to seismic interpretation, but it also shows log responses in the time domain to rationalize reflection events by effectively tying well tops and other levels to surface-seismic reflection profiles. The information is also useful for the identification of permafrost (Hu et al., 2013) and gas hydrate zones as well as for other types of sedimentary basin studies.
Summary(Plain Language Summary, not published)
A synthetic seismogram attempts to correlate changes in rock properties measured in a borehole, with acoustic reflections recorded remotely in seismic reflection data. In this study, seismograms have been created for 202 petroleum exploration wells completed between 1965 and 2007 in the Beaufort-Mackenzie Basin. The resulting composite well profiles have multiple uses, but most importantly enable accurate mapping of subsurface geology away from the well locations and throughout the basin.