A Study on Fracture Vuggy Reservoir Multi-scale Flow Simulation
Based on Pseudo-particle Method

doi:10.11885/j.issn.1674-5086.2012.11.19.08

Abstract

Abstract:

Abstract：Fractured vuggy reservoirs have various types of reservoir space which are greatly different. There are many typical
multi-scale and multi-phase complex flow states in the reservoir，including flow in porous medium，free flow in the cave，etc.，
which makes it difficult to accurately describe the flow characteristics of such reservoirs based on the physical simulation results
and conventional numerical simulation methods. In this paper，we establish two phase flow multi-scale discrete calculation
models based on pseudo-particle method. Relying on its advantages in the interface tracking，simulated the surface tension
through introducing a repulsion between the two phase interfaces，the surface tension model is established to realize the two
phase flow simulation of fractured vuggy reservoirs. Then we verified correctness of the model through theoretical analysis
and comparison with the physical experimental phenomena. The results show that this method can simulate two phase flow of
this type reservoir in different scale，which can replace the physics simulation experiment，and determine the distribution of
remaining oil in different fractured vuggy combination type as well as can simulate large scale macroscopic reservoir，it is to
lay a foundation for efficient development of this type reservoir.

Key words: Key words：fractured vuggy reservoirs, pseudo-particle method, multi-scale, two-phase flow, numerical simulation

Zhang Hongfang, L¨u Xinrui, Liu Zhongchun, Han Kelong. A Study on Fracture Vuggy Reservoir Multi-scale Flow Simulation
Based on Pseudo-particle Method[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2012.11.19.08.

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