Horizon and Formation Attributes
The last few years (since the publication of the Third Edition of this book) have seen an enormous increase in the number of attributes available and in their use. Attributes are used to pursue studies in structure, in stratigraphy and in reservoir properties. Therefore this chapter can be viewed as an extension of Chapters 3, 4 and 7.
An attribute is necessarily a derivative of a basic seismic measurement. All the horizon and formation attributes available (Figure 8-1) are not independent of each other but simply different ways of presenting and studying a limited amount of basic information. That basic information is time, amplitude, frequency and attenuation and these form the basis of our attribute classification.