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随着地震波勘探技术的不断发展,对复杂介质的研究也越来越深入。我国西部和南部地区存在大量的孔洞带、裂缝带和孔洞缝交织带等,它们往往具有很强的渗流功能和储集作用。要想对他们做精确的描述,就需要用小尺度刻画复杂储层。这就对计算能力提出了很大的挑战。因此,引用可变网格的思想,也就是在需要小尺度刻画的区域内用小网格计算,其余的区域用大网格计算。这样既可以节约计算机的计算量,又能够实现对孔洞缝的精细描述。
With the continuous development of seismic wave exploration technology, the research on complex media is more and more in-depth. There are a large number of holes, fractures and holes in the western and southern parts of China. They often have strong seepage function and reservoir effect. To accurately describe them, complex reservoirs need to be described in small scales. This poses a big challenge to the computing power. Therefore, the idea of referencing variable grids, that is, using small grids for small-scale characterization, and large grids for the remaining areas. This can not only save computer computation, but also to achieve a detailed description of the hole.