A Constrained Pressure-Temperature Residual (CPTR) Method for Non-Isothermal Multiphase Flow in Porous Media

• DOI: 10.1137/19m1292023
• Publication Date: 2020-07-30T18:51:22Z
• Authors: Thomas Roy; Tom B. Jönsthövel; Christopher Lemon; Andrew J. Wathen
• Keywords: Isothermal process; Multiphase flow

For both isothermal and thermal petroleum reservoir simulation, the constrained pressure residual (CPR) method is industry-standard preconditioner. This a two-stage process involving solution of restricted system. While initially designed for case, CPR also standard cases. However, its treatment energy conservation equation does not incorporate heat diffusion, which often dominant in In this paper, we present an extension CPR: pressure-temperature (CPTR) method, where system solved first stage. previous work, introduced block preconditioner with efficient Schur complement approximation Here, extend multiphase flow as stage CPTR. The algorithmic performance different preconditioners evaluated simulation test