Often it is difficult to map subtle faults and other trace-to-trace discontinuities hidden in 3D seismic data. They may appear as minor changes in the seismic waveform that are not easily correlated using conventional interpretation of seismic cross-sections. To map these changes we have investigated and computed several different seismic attributes sensitive to the existence of small faults and fractures in our target reservoir, the Late Permian Unayzah sandstone of central Saudi Arabia. In addition to the traditional geometric horizon attributes such as dip and azimuth, we found that both coherence and spectral decomposition were useful in imaging seismic discontinuities....

First Page Preview

First page PDF preview
You do not currently have access to this article.