Applying Massively Parallel Interface for MPFA scheme with advanced linearization for fluid flow in porous media

We apply Massively Parallel Interface for MPFA-O scheme with state-of-the-art Operator-Based Linearization (OBL) approach multiphase flow in porous media. The implementation of enhances the modelling capabilities non-K-orthogonal mesh. A fully implicit is applied to guarantee stability solutions when a mass-based formulation involved keep flexibility framework general-purpose reservoir simulation. As introduces more non-zeros elements Jacobian matrix than traditional TPFA, massively parallel computations via Message Passing (MPI) this work help competitive computational efficiency high-fidelity geological models. Concerning assembly hassle, we OBL which operators combining fluid and rock properties conservation equations discretizes physical parameter space. By computing values derivatives multilinear interpolation, residual vector could be drastically simplified. Another benefit that by only evaluating operator on predefined nodes space, overhead related complex phase behavior property evaluation significantly reduced. In end, present several benchmark cases rigorously demonstrate accuracy, convergence, robustness two challenging field-scale further prove its performance scalability.