Ultrasound technique is an inexpensive and ecofriendly technology commonly used in oil and gas industry to improve oil recovery and its applications have been successfully tested in both laboratory and field scales. In this technique, high-power ultrasonic waves are utilized downhole to improve oil recovery and reduce formation damage in near wellbore region that causes a reduction in hydrocarbon production rate due to the penetration of mud, scale deposition, etc. In most of the cases, barriers for the oil flow to the wellbore are effectively removed by using the ultrasound technique and the effect of improved oil recovery may last up to several months. The aim of this paper is to provide an overview of recent laboratory, field and mathematical studies to serve as reference for future extensive examination of ultrasound assisted improved oil recovery. As an added value to this field of study, research gaps and opportunities based on the review of recent works were identified and factors that needs to be considered to improve the outcome of future studies were recommended.

中文翻译：

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超声波在提高石油采收率中的最新应用：技术和结果回顾

超声技术是一种廉价且环保的技术，常用于石油和天然气行业以提高石油采收率，其应用已在实验室和现场规模上得到成功测试。在该技术中，在井下利用高功率超声波来提高石油采收率并减少由于泥浆渗透、水垢沉积等导致油气产量降低的近井区地层损坏。在大多数情况下，使用超声波技术可以有效去除阻碍油流到井眼的障碍，提高采油率的效果可能会持续数月。本文的目的是概述最近的实验室，现场和数学研究作为未来广泛检查超声波辅助提高石油采收率的参考。作为该研究领域的附加价值，基于对近期工作的审查确定了研究差距和机会，并建议了需要考虑以改善未来研究结果的因素。