Optimization of high-viscosity oil field development using thermo-hydrodynamic modeling

Abstract

Production of high-viscosity oil reserves is accompanied by digital modeling. Use of enhanced oil recovery methods involves the synthesis of optimal control of the injected agents’ effects. The system for modeling of non-isothermal multiphase filtration processes currently under development is based on the use of the finite element method. This allows to detail the formation heterogeneities and processes taking place in the wells and in the near-well regions. The objective function includes minimization of water cut and the mass of injected agents and water. A geological-dynamic model with actual current performance parameters is used as an input. A polymer flooding analysis was performed, including analysis of the frontal advance and increase of oil recovery factor. The capabilities of the developed system were tested on a high-viscosity oil field model. As a result, a 30-50% increase in daily oil production rate is predicted.