Method of joint analysis and interpretation of the subsurface from multiple seismic derived layer property data sets

摘要

A method for the joint analysis and interpretation of two or more seismic derived layer property data sets is disclosed. The input for the analysis phase may consist of well logs, attribute horizons, seismic derived layer property data sets or other data sets, as long as these data sets for analysis contain the same layer properties as the input seismic derived layer property data sets. This data is analyzed, for example through crossplots, to determine subspaces that define certain subsurface features of interest. In the next step the seismic derived layer property data sets are scanned to classify if points fall inside or outside these subspaces. This classification step in the method automatically detects subsurface features in the input seismic derived layer property data sets corresponding to the subsurface features of interest as determined in the analysis step. In the next step the classified points are spatially analyzed with a connectivity algorithm to automatically create geologic bodies consisting of spatially connected points. After classification and connectivity analysis the results may be reviewed, typically with a 3D visualization tool. Based on this review changes may be made in previous steps. In a final step, various maps can be automatically generated from the geologic bodies. The procedure can be applied multiple times to so analyze and interpret multiple, large volumes of seismic derived layer property data sets in a new, very efficient, highly automated way.