Geophysics
Interpretation with Seismic Attributes
![Maps obtained for attribute R∗0 PR rotated 45° for the horizons of sands](/wp-content/uploads/2022/05/Mapsobtained-for-attribute-R0-PR.webp)
The Coherence Attribute
Among the different kinds of attributes, the coherence attribute is one that does not require extensive interpretation work. Coherence coefficients for seismic trace similarity are calculated in a grid using a nine-trace operator. The coherence algorithm is used to enhance discontinuities (faults and/or stratigraphic details) in 2D and 3D data.
Figure 1 shows an example of an application of the coherence algorithm, with a nominal seismic time slice (colored image) and a coherency time slice (black and white image). Faults are difficult to interpret in the conventional time slice, but these are clearly shown in the coherency time slice.
![Time slice (colored) and coherency time slice (black and white), Interpretation with Seismic Attributes, Seismic Attributes, Seismic. geophysics](/wp-content/uploads/2022/05/Time-slice.webp)