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The equation denotes the stress strain relation of seepage media under the action of elastic wave.
We analyze the influence of the above issues by investigating the mechanical response of pumped elastic porous media under different conditions.
Under elastic wave, the effective porosity variation in seepage media can be expressed as a multiple of that in static fluid-saturated media as Eq. 1.
We compared the hypocentral distance variations of the amplitude level variance of Ricker wavelets using three random inhomogeneous media (Fig. 12): acoustic random media, elastic random media, and elastic random media without density fluctuations (models A, B, and C, respectively).
The intima, media, internal elastic lamina, and external elastic lamina were considered as forming one single layer.
The deposit of calcium, smooth muscle hyperplasia of media, and elastic fiber injury were also found.
Effective elastic properties were theoretically characterized for fractured media under external loading.
Therefore, the two partial differential equations obtained should be accurate for modeling elastic wave phenomena in fluid-saturated porous media under typical low-frequency conditions applicable to hydrogeological problems.
