... Abstract It is important to estimate the elapsed time to solve large sparse linear systems for time-restricted real life decision making applications such as oil and gas reservoir simulators. Challenging matrices should be distinguished and handled separately because they may lead...

... the low computational costs of eliminating the mortar variables to obtain the final Jacobian matrices. We have demonstrated parallel scalability using our two-stage preconditioner on large-scale heterogeneous two-phase reservoir simulation problems with over 10 million elements and over 1000 processors...

... Abstract The size and complexity of reservoir simulation models are growing continuously to better capture the heterogeneities of geological models and to simulate advanced physics. Generally reservoir simulators' speed and efficiency are still major bottlenecks requiring, in many cases...

.... , Klie , H. , et al. 2007 . Algebraic multigrid methods (AMG) for the efficient solution of fully implicit formulations in reservoir simulation . Paper SPE 105832 presented at the SPE Reservoir Simulation Symposium , Houston, Texas , 26–28 February . 10.2118/105832-MS . Vanek , P...

... Abstract The mathematical models in reservoir simulation are usually discretized into large linear equations, and solving them needs lots of time. Taking into account the mathematical characteristics of the black oil model, a multilevel preconditioning solution method is designed to deal...

... literature. Validation results demonstrate the robust, fast, and accurate predictive capabilities of the multiphysics modeling protocol. reservoir geomechanics Reservoir Characterization reservoir simulation Upstream Oil & Gas full elastoplastic geomechanics implementation Modeling...

... Abstract History Matching is one of the most important steps to calibrate the Reservoir Simulation models. There are hundreds of thousands of grid blocks in reservoir simulation model, therefore manual History matching is not feasible for these cases. Automatic history matching uses...