Integrated Seismic Facies and Gas Migration Analyses, Danish North Sea

A combined study using various seismic methods has proven to give trustworthy information for a basin modeling study in the Danish North Sea. The methods are spectral decomposition and gas migration analysis. <br>One example is coal formations of Mid Jurassic age representing swamp areas of that time and in between them we have channel systems. It is expected that there is a difference in the organic content between the two types of geology, and therefore there should be a significant difference in gas migration activity between the coal beds and the channels. The result from this analysis is compared with the result of spectral decomposition, which clearly maps the channels and the coal formations, and we see a clear correlation.<br>