Reservoir Simulation Model Updates via Automatic History Matching With Integration of Seismic Impedance Change and Production Data

Automatic history matching can be used to incorporate 4D seismic data into reservoir characterization by adjusting values of<br>permeability and porosity to minimize the difference between the observed impedance change and the predicted impedance<br>change, while remaining as close as possible to the initial geological model. To perform the history matching efficiently, an<br>adjoint method is used to compute the gradient of the data mismatch and a quasi-Newton method is used to compute the<br>search direction.