Dynamic approach to basic indices prediction of gas and gas-condensate fields development
Application of a dynamic approach to the selection of a predictive model which is the best to describe the dependence of a formation average pressure on the total gas extraction is considered in the paper. The conducted studies served the basis for proving the fact that the proposed approach allows obtaining the dependence adequately describing the change of the fixed average formation pressure from the total gas extraction for further prediction of basic indices dynamics of gas and gas-condensate fields’ development. Application of the proposed approach when analyzing the operational indices of the VII horizon development of Sangachaly-sea-Duvanny-sea offshore field showed that the maximum prediction error of the formation pressure does not exceed 5 %.