Effects of Cyclic Pressure Variation on Permeability


Chuntang Xu







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The enhancement of seismic stimulation on oil recovery has been recognized and studied for a long time. Based on numerous theoretical studies, modeling approaches, and laboratory scale and field tests, several theories and mathematical models have been developed. However agreement on the fundamental theory behind this phenomenon has not yet been reached.

Pan (1999) developed a series of models of the flow system. She studied the motions in the fluid and solid phases based on homogenizing the Navier-Stokes equation, and by implementing the model with the finite-element technique and numerical analysis. She also provided modeling predictions based on single-phase flow.

To test the elastic wave vibration effect on the single-phase flow and to verify the theoretical predictions at laboratory-scale, two different sets of apparatus were constructed and the single-phase vibration effect was investigated.

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