超声波对多孔介质中液体流动的影响

Effect of Ultrasonic-wave on Liquids Flow through Porous Media

近年来,超声波技术已被应用于采油工程中,形成了一门新的学科——采油声学。本文主要研究了超声波对多孔介质中液体流动的影响,尤其是两相流动的影响。实验采用的多孔介质为人造石英砂岩,渗流液体为油和水。实验结果表明:超声波作用能够提高油的渗流速度,提高原油采收率,并降低采出液的含水率。

Nowadays, ultrasonic technique has been used in oil recovery and forms a new subject named oil recovery acoustics. This paper deals with the effect of ultrasonics on liquids flow through porous media, especially two-phase flow. The porous media used are man-made sandstones and the penetrating liquids are oil and water. From the experiments, we can draw conclusions as follows:1. ultrasonic stimulation can increase the flow rate of oil through porous media; 2. The oil recovery after waterflooding can be increased by ultrasonic action; 3. The producing water cut can also be reduced during ultrasonic stimulation.