Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Год издания: 2012
Ключевые слова: Computer simulation, Domain decomposition methods, Numerical models, Petroleum reservoirs, Carbonate reservoir, Direct observations, Fine structures, Finite-difference techniques, Fracture corridors, Parallel Computation, Scattered waves, Specific processor, Electronic data interchange
Аннотация: In order to simulate interaction of seismic waves with cavernous/fractured reservoirs the finite-difference technique based on locally refined in time and space grids is used. The need to use these grids is due to essentially different scales of heterogeneities in the reference medium and in the reservoir. Parallel computations areПоказать полностьюorganized on the base of 3D Domain Decomposition into elementary subdomains in the both reference medium (coarse grid) and reservoir (fine grid). Each elementary subdomain is assigned to its specific Processor Unit forming two groups - for reference medium and for reservoir. The data exchange between PU within the same group is performed in a standard manner - by nonblocking iSend/iReceive commands. The data exchange between two groups is done simultaneously with coupling of coarse and fine grids and is controlled by specially designated master PU. Results of numerical simulation for a realistic model of the carbonate reservoir are presented and discussed. On the base of numerical simulation an approach to recovery of orientation of fracture corridors is proposed and verified by comparison with direct observation of fractures within a well.
Журнал: Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources