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Effects of low frequency external excitation on oil slug mobilization and flow in a water saturated capillary model

Petroleum 2019年第4期5卷 375-381页

作者： Liming Dai Yihe Zhang Sino-Canada Research Center for Noise and Vibration Control at Xiamen University of Technology and the University of Regina China Industrial Systems Engineering University of ReginaReginaCanada

The present research is to experimentally study the joint effects of external pressure and vibratory excitations of low frequency on oil slug mobilization and flow in a capillary *** and after the oil slug mobilization,the flow phenomena and pressure drop variation across the model are *** distance travelled by the oil slug subjected to various external pressure and vibratory excitations are also *** experimental results obtained indicate that the external vibratory excitation acting on the model has positive effect on the flow and mobilization of the oil slug in the *** is found in the research,with the application of the excitation,the contact angle between the oil slug and tube-wall is changed;the maximum pressure required to mobilize the oil slug is reduced accordingly;and the oil slug travel distance is increased in comparing with that without external *** research contributes to the comprehension of improved liquid mobilization in porous media under the application of external *** finding of the research is significant for studying the two-phase liquid flow in porous media subjected to external excitations and provides insights for Enhanced Oil Recovery with waterflooding and vibratory stimulations.

关键词： two-phase liquid motion Oil slug mobilization Vibratory excitation liquid mobilization Porous media Capillary model Low frequency stimulation

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