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Efficient multilevel method for local grid refinement for massively parallel reservoir simulation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, ECMOR VII - 7th European Conference on the Mathematics of Oil Recovery, Sep 2000, cp-57-00039
- ISBN: 978-90-73781-13-9
Abstract
The objective of this work is to develop a robust and efficient multilevel parallel algorithm to solve regelar composite grids resulting from local sub-gridding of a multi-million-cell base grid. The strategy is to formulate an iterative scheme on a grid-by-grid basis such that the regelar structure of the matrix at each stage is preserved. The multilevel method applied here utilizes an algebraic fill-in method similar to the one proposed in BEPS but has been generalized to the multi-component multi-phase flow context.