Petroleum Science >2009,??Issue 1:??43-50 DOI: https://doi.org/10.1007/s12182-009-0008-x
Iterative coupling reservoir simulation on high performance computers Open?Access
文章信息
作者：Bo Lu & Mary F. Wheeler
作者單位：
投稿時(shí)間：04 February 2009
引用方式：Lu, B., Wheeler, M.F. Iterative coupling reservoir simulation on high performance computers. Pet. Sci. 6, 43–50 (2009). https://doi.org/10.1007/s12182-009-0008-x
文章摘要
In this paper, the iterative coupling approach is proposed for applications to solving multiphase flow equation systems in reservoir simulation, as it provides a more flexible time-stepping strategy than existing approaches. The iterative method decouples the whole equation systems into pressure and saturation/concentration equations, and then solves them in sequence, implicitly and semi-implicitly. At each time step, a series of iterations are computed, which involve solving linearized equations using specific tolerances that are iteration dependent. Following convergence of subproblems, material balance is checked. Convergence of time steps is based on material balance errors. Key components of the iterative method include phase scaling for deriving a pressure equation and use of several advanced numerical techniques. The iterative model is implemented for parallel computing platforms and shows high parallel efficiency and scalability.
關(guān)鍵詞
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Iterative coupling; reservoir simulation; multiphase flow; phase scaling; parallel scalability