STOCHASTIC-ANALYTICAL MODEL OF PRODUCTIVE STRATA HYDRAULIC SYSTEM FOR STUDY OF CONDUCTIVITIES BETWEEN WELLS

Abstract

The factor that is the most determining for the accuracy of the hydraulic systems models and in particular the accuracy of the productive strata hydraulic system model (PSHS), is the accuracy of input data, i.e. the reservoir properties corresponding to the initial state of the PSHS elements, the formation cells; the approximation coefficients for the basic relationships; relative permeability curves; fluids and rocks deformation properties; boundary conditions, etc. Therefore, the quality of input data to a greater (in relation to the factors of calculation accuracy) extent determines the correspondence of the values of the estimated output data of the models to the actual measurement values, namely the dynamics of the injection, observation and production wells performance in which the recording of bottomhole pressure, flow rate and fluids composition of the fluids in wells varying with time is run.