Geological basis for rapid assessment of the value of information

Abstract

The express estimation method of additional study influence on the individual geological parameters uncertainty is considered. The geological features typification and study is suggested. The section geological features, such as vertical and horizontal anisotropy, are divided into typical 9 classes. In addition to the features parametric characteristics (porosity, saturation, effective thickness, fluid type and several others) are included discretely in the evaluation. For each set of geological parameters, different classes of knowledge are distinguished. Based on this discretization, the study effect on the distribution of reserves and their sensitivity to more or less known parameters was evaluated. The work idea lies in the allocation of typical objects with identical geological features. Further comparison of the study baseline state with the target gives an understanding of both the magnitude of the change in the ranges of stocks and the possibilities of minimizing uncertainties by specific measures based on the calculations already performed. The result of the assessment can be built into existing tools for portfolio analysis, resource flow plans, drilling rating or the development of integrated projects for project development.