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  | isbn    = 0-89181-602-X

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The time slice was described earlier as the first step toward 3-D interpretation of a 3-D seismic volume. A time-slice view of the data is an improvement over vertical sections for the interpretation of depositional systems because it provides the opportunity to see a portion of depositional systems in map view. This view is key to interpreting these systems because it allows a view of the morphology of the system, which facilitates its recognition.

The time slice is the first step toward 3-D interpretation of a 3-D seismic volume. A time-slice view of the data is an improvement over vertical sections for the interpretation of depositional systems because it provides the opportunity to see a portion of depositional systems in map view. This view is key to interpreting these systems because it allows a view of the morphology of the system, which facilitates its recognition.

==Structural effects==

==Structural effects==

A time slice provides at best an image of a small portion of a depositional system. Subsequent structural deformation of the depositional surface typically means that only a small portion of a depositional system is imaged on a time slice. In fact, as the structural relief increases, the anomalies on the time slice associated with the structure quickly dominate the image.

A time slice provides at best an image of a small portion of a depositional system. Subsequent structural [[deformation]] of the depositional surface can mean that only a small portion of a depositional system is imaged on a time slice. In fact, as the structural relief increases, the anomalies on the time slice associated with the structure quickly dominate the image.

==Horizon slices==

==Horizon slices==

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[[:file:interpreting-3-d-seismic-data_fig13-9.png|Figures 1]], [[:file:interpreting-3-d-seismic-data_fig13-10.png|2]], and [[:file:interpreting-3-d-seismic-data_fig13-11.png|3]] illustrate the value of the horizontal slice view of the data. [[:file:interpreting-3-d-seismic-data_fig13-9.png|Figure 1]] is a portion of a vertical seismic section from a 3-D seismic survey in the North Sea. The interpreted horizon, at approximately 2 seconds, is the Top Paleocene. Approximately 120 ms below this, at about the level indicated by the arrows, the section crosses a 1-km-wide Paleocene deepwater turbidite channel.

[[:file:interpreting-3-d-seismic-data_fig13-9.png|Figures 1]], [[:file:interpreting-3-d-seismic-data_fig13-10.png|2]], and [[:file:interpreting-3-d-seismic-data_fig13-11.png|3]] illustrate the value of the horizontal slice view of the data. [[:file:interpreting-3-d-seismic-data_fig13-9.png|Figure 1]] is a portion of a vertical seismic section from a 3-D seismic survey in the [[North Sea]]. The interpreted horizon, at approximately 2 seconds, is the Top Paleocene. Approximately 120 ms below this, at about the level indicated by the arrows, the section crosses a 1-km-wide Paleocene deep-water [[turbidite]] channel.

==Example time slice==

==Example time slice==

==See also==

==See also==

* [[Proportional slices and 3-D volume visualization]]

* [[Proportional slices and 3-D volume visualization]]

==External links==

==External links==

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Interpreting 3-D seismic data]]

[[Category:Interpreting 3-D seismic data]]