Regional stratigraphic well-log [[cross section]]s form the foundation for many basin studies. They give a regional view of basin stratigraphy and can be integrated with seismic and biostratigraphic data. The table below outlines the steps for building regional well-log cross sections.
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Regional stratigraphic well-log [[cross section]]s form the foundation for many basin studies. They give a regional view of basin stratigraphy and can be integrated with seismic and biostratigraphic data. The list below outlines the steps for building regional well-log cross sections.
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{| class = "wikitable"
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# Build a grid of well-log sections that crosses the entire basin, either along depositional dip or depositional strike. Use as many wells as practical. Where available, add measured sections and [[core description]]s to the grid.
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# Correlate cross sections. Look for [[Unconformity|unconformities]] and flooding surfaces.
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! Step
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# Tie the correlations from depositional-dip sections to depositional-strike sections.
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! Action
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# Confirm correlations on seismic reflection profiles.
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|-
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| 1
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| Build a grid of well-log sections that crosses the entire basin, either along depositional dip or depositional strike. Use as many wells as practical. Where available, add measured sections and [[core description]]s to the grid.
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|-
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| 2
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| Correlate cross sections. Look for [[Unconformity|unconformities]] and flooding surfaces.
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|-
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| 3
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| Tie the correlations from depositional-dip sections to depositional-strike sections.
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|-
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| 4
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| Confirm correlations on seismic reflection profiles.