油气藏模拟中零平衡失效的处理对策研究

我国近年来引进的几种主要商用油气藏模拟器(包括CMG公司的IMEX软件、SSI公司的SIMBESTII软件和VIP系列中的VIP-ENCORE软件),都存在着严重的零平衡失效问题。迄今为止,还没有文献对零平衡失效问题作过公开的分析与报道。为此对产生这种情况的两种主要原因进行了分析,并提出了相应的处理措施。实际应用表明,该方法可以很好地减轻零平衡的失效程度,为模拟模型的可靠性提供有力保障。

TREATMENT STRATEGY OF DISEQUILIBRIUM AT ZERO-BALANCE CHECK OF RESERVOIR SIMULATOR

There is sever disequilibrium at zero-balance check in the commercial reservoir simulators introduced in recent years(including the ones from IMEX software by CMG, SIMBESTII and VIP- ENCORE by SSI). So far, there are no literaturesthat are published to deal with this problem. Two main reasons causing the above problem are discussed and analyzed, and the corresponding measures are also presented in the paper. The application shows that these measures can greatly reduce the degree of disequilibrium at zero-balance check, and ensure powerful reliability of the simulation model.