裂缝性边水气藏全隐式数值模拟研究

Fully-implicit reservoir simulation study about fractured reservoir with boundary water

以全隐式气藏数值模拟的核心——线性方程组的解法为突破口 ,研究了裂缝性边水气藏全隐式数值模拟方法 ,并研制了模拟软件。对双重介质全隐式模型形成的线性代数方程组采用块系数强隐式预处理正交极小化算法 ,与其它算法相比 ,显示出其快速、稳定的优越性。研制的模拟软件经过理论气藏及川东新市气藏实例计算 ,表明解法的优越性及软件的有效性 ,应用此算法及软件可对同类气藏进行多方位的系统研究 ,指导气藏科研及生产。

A fully implicit numerical simulation method of fractured gas reservoir with boundary\|water have been studied and the corresponding simulation software is also developed, which take the solution of linear equation group as the breakthrough point about the fully implicit numerical simulation. To the linear equation group formed by double\|media fully implicit model, the block-coefficient strongly implicit preconditioned ORTHOMIN method is adopted. Through comparison with another arithmetic and calculation of theoretical gas reservoir and XinShi gas reservoir of ChuanDong, the fast and steady superiority of present method and efficiency of developed simulation software are demonstrated. The arithmetic and software provided in this paper can be used to the systematic research and production of the same type gas reservoir.