Experience of cross-validational interaction at the construction of 3D geological-hydrodynamic model on the example of the West Siberia deposit

Abstract

The traditional approach of consistently creating a petrophysical, geological, and then a dynamic model leads to an increase in time and labor costs and, often, the disruption of time due to the iterative process of aggregating geological and geophysical information into a single conceptual three-dimensional model of the field. In order to reduce administrative resources for the creation of 3D geological and dynamic models, a cross-validation interaction scheme is proposed that consists in constructing simplified dynamic models (box models) at the petrophysical stage and early stage of geological modeling. The use of this approach to the field of Western Siberia has made it possible not only to shorten the time of the model creation, but also to improve its level of predictive ability and the consistency of various sources of geological and geophysical information without loss of data between the stages of work. The aim of the work was to improve the quality and level of thoroughness of 3D geological and dynamic models and reduce labor costs. The proposed cross-validation approach can be replicated to any other geological and dynamic modeling projects.