Understanding seismic attributes

Abstract

With the success of 3-D surveys has come the popularity of seismic attributes. Attributes are valuable for gaining insight from the data particularly when displayed spatially over interpreted horizons. However, all the many attributes available are not independent pieces of information but, in fact, simply represent different ways of presenting a limited amount of basic information. The key to success lies in selecting the most applicable attribute for the problem. Furthermore, statistical analysis using attributes must be based on understanding, not simply mathematical correlation.

High Resolution Seismic Reflection for Hydrogeology - What is the Value?

“…Attributes alter essential information found within a seismic trace such as time, amplitude, frequency, and attenuation (Brown, 2001). By applying attributes to seismic data, certain structural properties can be extracted.…”

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“…It plays an important role in dividing the structure zones, detecting faults, predicting lithology, dividing reservoirs, and so on (Brown, 2001). The most important advantage is that it can highlight some information hidden in the original seismic data.…”

Interpretação Volumétrica de dados sísmicos 2D – Uma técnica de gridagem e construção de um pseudo 3D

“…O primeiro (5a) é o semblance (Taner, 1996) que permite uma melhor visualização de descontinuidades, principalmente das falhas sísmicas. O segundo (5b) é a fase instantânea (Brown, 2001), que enfatiza continuidade lateral dos eventos, pois ignora a informação de amplitude das amostras em tempo. A Figura 5d é uma combinação de (a) e (b), que dá ao cubo uma feição de rocha.…”