The resulting geologic volumes are a trace for trace replacement of the seismic data with the log type used in the training process. Any measured or calculated logs such as gamma ray, porosity or water saturation can be predicted. Rigorous validation processes ensure that spurious or random correlations are avoided. For further details, please refer to the data loading section in the AVO product description of this brochure. Check shot correction and graphical log tieing is performed in the supplied eLOG product.
Sonic logs are the mechanism through which the wells are tied to seismic.
All logs present in the wells are cross-plotted with the existing sonic logs. Combinations of logs are then cross-plotted to determine even closer relationships with the sonic. Ultimately, the best combination of logs for predicting sonic values is determined. A rigorous validation process helps ensure that spurious correlations are avoided.