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Line 22: − + − {| class = "wikitable"+ − |-+ − ! Step+ − ! Action+ − |- − | 1 − | 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. − |- − | 2 − | Correlate cross sections. Look for [[Unconformity|unconformities]] and flooding surfaces. − |- − | 3 − | Tie the correlations from depositional-dip sections to depositional-strike sections. − |- − | 4 − | Confirm correlations on seismic reflection profiles. − |}
Recognizing stacked depositional sequences from well data (view source)
Revision as of 15:39, 29 October 2014
, 15:39, 29 October 2014→Building regional log cross sections
==Building regional log cross sections==
==Building regional log cross sections==
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.
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.
# 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.
# Correlate cross sections. Look for [[Unconformity|unconformities]] and flooding surfaces.
# Tie the correlations from depositional-dip sections to depositional-strike sections.
# Confirm correlations on seismic reflection profiles.
==Biostratigraphic patterns==
==Biostratigraphic patterns==