Analysis of AVO Inversion Results and Verification of Interpreted Reservoirs with New Wells – Case Study for Yamal Area

There are many ways to QC results of seismic inversion, but the best of them, of course, is to compare predicted reservoir bodies with new wells data. Reservoir characterization was implemented using a probabilistic interpretation of the results of deterministic simultaneous AVO inversion followed by volume interpretation. Due to limitations of seismic inversion algorithm used in the thin-layered section with high acoustic contrasts it is possible to predict predict only the presence of the reservoir. The existing limitations reservoir bodies captured from inverted elastic volumes in general have an excellent agreement with the 28 new drilled wells. Comparison was done for 17 target intervals. Thus, the quality of the results of reservoir characterization proved their quality and accuracy, so that they can be used to optimize the further exploration drilling plans.