Nonlinear Output Constraints Handling for Production Optimization for Oil Reservoirs

This paper presents a gradient-based optimization method to handle nonlinear output constraints problems for large-scale systems in production optimization of oil reservoirs. The method is based on a barrier function approach, where the output constraints are added as a barrier term to the objective function. The gradient is obtained by using the adjoint method. Further, two case examples are discussed. The results show that the proposed optimization method is able to preserve the efficiency of adjoint methods.