Abstract

Viscosity reduction is one of the key issues for heavy oil reservoir development and its transportation. Up to now, the mechanisms for ultrasonic viscosity reduction still remain unclear, especially for that of heavy crude oil which needs to be studied urgently. Parameters have been studied on the effect of viscosity reduction. The parameters for viscosity reduction were optimized to achieve the excellent result of viscosity reduction. Experiments show that ultrasonic irradiation leads to a substantial decrease up to 86% of the viscosity of heavy oil. As for heavy crude oil, the parameters influencing viscosity reduction are in the order of ultrasonic power output, treatment time, water cut and temperature. Ultrasonic wave has an obvious influence on quantity, magnitude, and distribution of paraffin crystals. This proves the existence of synergistic effect between ultrasonic irradiation and viscosity depressant. Ultrasonic wave has an apparent effect on viscosity reduction of heavy oil.

中文翻译：

---

超声辐照降低稠油粘度的实验研究

摘要

降低粘度是稠油油藏开发及其运输的关键问题之一。迄今为止，超声粘度降低的机理仍不清楚，特别是对于重质原油，需要紧急研究。已经研究了关于降低粘度的效果的参数。优化了降低粘度的参数，以实现出色的降低粘度的结果。实验表明，超声波辐照导致重油粘度降低多达86％。对于重质原油，影响粘度降低的参数按超声功率输出，处理时间，含水率和温度的顺序排列。超声波对石蜡晶体的数量，大小和分布有明显的影响。这证明了超声辐射与降粘剂之间存在协同作用。超声波对降低稠油粘度具有明显的作用。