Аннотация:In this paper we would like to attract an attention to some frequently encountered problems arising when trying to forecast the distribution of reservoir properties based on seismic data. In recent years such a procedure has become very popular and has been commonly applied as a final stage of any seismic data interpretation workflow. Impressive results having been presented by numerous experts (including the authors of this paper) seem to convince geophysical service companies and their clients that seismic-based properties prediction techniques appear to be accurate, reliable and, most of all, universal method of description of complex structure of the geological medium. Thus, the results of this prediction procedure can be directly implemented for reserves estimation as well as for other purposes during the planning phase of
development of a hydrocarbon field. However, our personal experience of dealing with various geological objects in order to derive property volumes from seismic data allows us to point out some significant constraints of this approach. In what follows we discuss one of such counter-examples