双重各向异性是多孔介质的一个基本性质，它对油藏流体的流动乃至油气生产都有一定的影响。
Dual anisotropism is a basic characteristic of porous medium. It has an effect on the flow of reservoir fluid and oil and gas production.
含流体孔隙各向异性介质中的弹性波传播问题是目前石油勘探和地震学研究的难点之一。
The issue of elastic wave transmission in anisotropic fluid-filled pore medium is one of difficulties in current petroleum exploration and study of seismology.
我们首先考虑二维不可压缩流体通过正交各向异性土层的定常流动。
We will consider first the case of two-dimensional incompressible steady flow through orthotropic soil.
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