f From AVO Screening to an Advanced Pre-stack Reservoir Characterization through a Detailed Rock Physics Analysis

There are two prospective technologies that can maximize petroleum operator’s business impact described in this paper. One of them is AVO screening - ProspectScanner technology which combines seismic AVO analysis and inversion technology to derive relative elastic properties (i.e. P and S-wave impedances, Vp/ Vs ratio). This workflow is time-efficient and allows for the inversion of large seismic volumes, making it an excellent regional litho/fluid screening tool which works without well data. Whereas the next stage follows as an independent method where a calibration of reflectivity data to well logs and deriving of regional rock property trends enable expected reflectivity to be calculated. Expected reflectivity is than compared with observed reflectivity which leads to prediction of lithology and fluid content.