MODEL PARAMETER REDUCTIONS AND MODEL PARAMETER SELECTION TO OPTIMIZE EXECUTION TIME OF RESERVOIR MANAGEMENT WORKFLOWS

摘要

An apparatus for generating forecasts from a high-dimensional parameter data space comprising a reservoir model, a model order reduction module, and an assisted history matching module. The reservoir model having input variables, output variables, and an algorithmic model. The input variables, output variables, and the algorithmic model are generated by a flow simulator module and from a formation and reservoir properties database and a field production database. The model order reduction module generates a subset of the original or transformed input variables. This subset has a reduced parameter space than that of the input variables. The subset is generated using a function decomposition and a design of experiments (sensitivity analysis) to reduce number of original variables and identify original or transformed input variables that can be used to approximate output variables. The assisted history matching module adjust values of the output variables based on a difference between the at least one of the output variables and dynamic field production data to improve model accuracy.