Synthetic Seismogram Data for Correlation Between Seismic-Reflection Profiles and Well Data, Broward County, Florida
Dates
Publication Date
2017-07-27
Start Date
2011-05-24
End Date
2013-06-12
Citation
Cunningham, K.J., Abbott, D.S., and Geokinetics Incorporated, 2017, Synthetic Seismogram Data for Correlation Between Seismic-Reflection Profiles and Well Data, Broward County, Florida: U.S. Geological Survey data release, https://doi.org/10.5066/F72R3PVF.
Summary
Synthetic seismograms provide a means to calibrate (groundtruth) seismic-reflection profiles to specific subsurface stratigraphic features observed in one-dimensional core and geophysical log data acquired from wells. Independently, Walker Marine Geophysical Company and Geokinetics Incorporated used velocity data from 14 borehole-compensated sonic logs as input for specialized geophysical software to generate 14 synthetic seismograms. Velocity data from the sonic logs were converted to a synthetic seismic trace using synthetic-seismogram production software, reproduced either 5 or 8 times, and placed side-by-side to resemble a seismic-reflection profile. For each well, the synthetic seismogram was used to relate geologic and geophysical [...]
Summary
Synthetic seismograms provide a means to calibrate (groundtruth) seismic-reflection profiles to specific subsurface stratigraphic features observed in one-dimensional core and geophysical log data acquired from wells. Independently, Walker Marine Geophysical Company and Geokinetics Incorporated used velocity data from 14 borehole-compensated sonic logs as input for specialized geophysical software to generate 14 synthetic seismograms. Velocity data from the sonic logs were converted to a synthetic seismic trace using synthetic-seismogram production software, reproduced either 5 or 8 times, and placed side-by-side to resemble a seismic-reflection profile. For each well, the synthetic seismogram was used to relate geologic and geophysical well data to the respective seismic-reflection data. Stratigraphic and hydrogeologic interfaces were fit to the true wavelet traces on seismic-reflection profiles. Selected stratigraphic and hydrogeologic interfaces were identified on the basis of comparisons to published geologic and hydrogeologic frameworks. The direct correlation of key traces on the synthetic seismograms to seismic-reflection profiles was not a perfect fit; however, some disparity is common between synthetic seismograms and seismic-reflection profiles (Bruns and others, 1994) and in many cases is a result of imperfect modeling of synthetic seismograms.
Bruns, T.R., Geist, E.L., and Lavoie, D.L., 1994, Chapter 21 – Synthetic seismograms, migrated seismic reflection profiles, and lithologic correlations for Leg 135 sites in the Lau Basin and Tonga Arc, in Hawkins, J.W., Parson, L.M., Allan, J.F., and others, eds., Proceedings of the Ocean Drilling Program, Scientific Results, Lau Basin; covering Leg 135 of the cruises of the drilling vessel JOIDES Resolution, Suva Harbor, Fiji, to Honolulu, Hawaii, sites 834-841, 17 December 1990-28 February 1991: Texas A and M University, Ocean Drilling Program, College Station, Texas, v. 135, p. 331-365.
Click on title to download individual files attached to this item.
SyntheticSeismograms.xml Original FGDC Metadata
View
17.74 KB
application/fgdc+xml
Related External Resources
Type: Related Primary Publication
Cunningham, K.J., Kluesner, J.W., Westcott, R.L., Robinson, Edward, Walker, Cameron, and Khan, S.A., 2018, Sequence stratigraphy, seismic stratigraphy, and seismic structures of the lower intermediate confining unit and most of the Floridan aquifer system, Broward County, Florida (ver. 1.1, January 2018): U.S. Geological Survey Scientific Investigations Report 2017–5109, 71 p., 21 pls., https://doi.org/10.3133/sir20175109.
