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  4. Data release for the 3D petroleum systems model of the Williston Basin, USA
  5. True vertical thickness shapefile points for the 3D petroleum systems model of the Williston Basin, USA

True vertical thickness shapefile points for the 3D petroleum systems model of the Williston Basin, USA

Dates

Publication Date
Time Period
2023

Citation

Gelman, S.E., and Johnson, B.G., 2023, Data release for the 3D petroleum systems model of the Williston Basin, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9N7O1OT.

Summary

This describes 28 thickness point shapefiles that represent true vertical thickness (TVT) values by calculating the difference between stratigraphically adjacent formation tops picked on borehole geophysical logs. In wells where adjacent formation tops are missing, no TVT value is calculated. The TVT values are a measure of vertical thickness and do not account for the structural dip of units encountered in the wellbore. In total, the dataset contains 115,789 TVT values calculated in 16,200 wells from the Williston Basin of North Dakota, South Dakota, and Montana. This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".

Contacts

Point of Contact :
Sarah E Gelman
Originator :
Sarah E Gelman, Benjamin G Johnson
Metadata Contact :
Benjamin G Johnson
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Central Energy Resources Science Center
USGS Mission Area :
Energy and Minerals

Attached Files

Click on title to download individual files attached to this item.

true_vertical_thickness_shapefiles.xml
Original FGDC Metadata
View 		17.82 KB application/fgdc+xml
points_true_vertical_thickness.zip
“Zip file containing all true vertical thickness shapefiles” 		4 MB application/zip
FormTops.png
“ Example well log suites with interpreted formation tops.” 		thumbnail 155.78 KB image/png

Purpose

When interpolated, the TVT values can be used to generate isochore maps (contoured equal vertical thickness). Such maps are used in constructing the structural and stratigraphic framework of the basin. TVT maps are also useful for reconstructing paleogeography, erosional events, and identifying basin-scale structural features.
Example well log suites with interpreted formation tops.
Example well log suites with interpreted formation tops.

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  • Energy Resources Program

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