Acoustically activated release of organic liquids in porous media: a multiscale experimental investigation using laser-based optical diagnostics

多孔介质中有机液体的声激活释放：使用基于激光的光学诊断的多尺度实验研究

基本信息

批准号：
2050105
负责人：
Jaime Juarez
金额：
$ 30.71万
依托单位：
Iowa State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-04-01 至 2025-03-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2050105&HistoricalAwards=false
关键词：
Acoustically activated release organic liquids

项目摘要

A porous medium is a material that contains open voids where liquid can become trapped. Trapping of liquid in a porous medium is important in a variety of technological and naturally-occurring processes, including extraction of natural resources such as petroleum. Shale and sandstone are two types of sedimentary rock that serve as a common source of petroleum due the porosity of these types of rock. Extracting oil from rock is an energy intensive process that only yields about 40% of the total available oil. The remainder remains trapped inside void spaces within the rock. Improving the extraction yield requires techniques that are prohibitively expensive and can cause greater environmental harm than the initial extraction process. This project will investigate the hypothesis that acoustic sound waves can be used to improve the yield of petroleum from oil-bearing rock. Sound waves are advantageous because they can travel long distances through rock and do not introduce potential sources of contamination to the petroleum reservoir. A combination of analytical and experimental approaches will be used to describe transport phenomena related to multiphase flow through porous media. The resulting information will yield insight into the growth, break up and phase separation of multiphase flows in porous systems that can have applications beyond the extraction of oil, such as the production and performance of paints, cosmetics, pharmaceuticals, and processed foods. The overall objective of this project is to experimentally investigate acoustic separation of an oil phase from a porous oil rock analog. The results of these experiments will be used to develop a scaling model based on fundamental principles to describe oil phase separation from porous media across multiple scales. To achieve this objective, the specific tasks of the project are: (1) develop a two-dimensional experimental micromodel of oil-trapping porous media to serve as a control; (2) acoustically actuate the two-dimensional micromodel and use flow visualization and microscopic particle image velocimetry to study the resulting two-phase flow fields, and develop a three-dimensional scaling model to characterize the observed behavior as a function of injection rate, frequency, and input voltage (which is directly related to acoustic pressure and energy density); and (3) investigate and refine acoustic actuation in a three-dimensional porous oil rock analog using laser-based visualization of flows in an experimental model to validate scaling models. The research team will collaborate with the Society of Hispanic Engineers to deliver lectures on acoustics to a Hispanic high school population of about 700 students. These lectures will utilize research products to enhance the learning experience of the students and provide them with insight into the STEM field. The team will also interact with the Academic Program for Excellence to inspire freshman students, especially those from underrepresented groups, and to introduce them to the field of acoustics. This project is jointly funded by Particulate and Multiphase Processes and the Established Program to Stimulate Competitive Research (EPSCoR).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

多孔介质是一种材料，其中包含液体可能被困的开放空隙。在多种技术和自然存在的过程中，诱捕液体在多孔培养基中很重要，包括提取自然资源，例如石油。页岩和砂岩是两种类型的沉积岩，由于这些类型的岩石的孔隙率，它们是石油的共同来源。从岩石中提取油是一个能源密集型过程，仅产生可用油总的40％。其余的仍然被困在岩石内的空隙内。提高提取产率需要非常昂贵的技术，并且可能比初始提取过程造成更大的环境危害。该项目将调查以下假设：声波可用于提高含油岩石的石油产量。声波是有利的，因为它们可以长距离穿越岩石，并且不会向石油储层引入潜在的污染源。分析方法和实验方法的组合将用于描述与多孔介质多相流有关的转运现象。最终的信息将洞悉多孔系统中多相流的生长，分解和相位分离，这些系统可以在油的提取以外的应用，例如油漆，化妆品，药品和加工食品的生产和性能。该项目的总体目的是实验研究从多孔油石类似物的油相的声学分离。这些实验的结果将用于开发基于基本原理的缩放模型，以描述从多个尺度上与多孔介质分离的石油相分离。为了实现这一目标，该项目的特定任务是：（1）开发二维实验微型模型的油捕获多孔介质以作为对照；（2）声学地启动二维微型模型，并使用流动可视化和微观粒子图像速度计研究所得的二相流场，并开发三维缩放模型以表征观察到的行为，以表征注射速率，频率，频率，，和输入电压（与声压和能量密度直接相关）；（3）在实验模型中使用基于激光的流量可视化以验证缩放模型，研究并完善了三维多孔油岩模拟的声学驱动。研究团队将与西班牙裔工程师协会合作，向大约700名学生的西班牙裔高中人口提供有关声学的讲座。这些讲座将利用研究产品来增强学生的学习经验，并为他们提供对STEM领域的见解。该团队还将与卓越学术计划互动，以激发新生，尤其是来自代表性不足的团体的学生，并将他们介绍给声学领域。该项目由颗粒和多相过程以及刺激竞争性研究的既定计划共同资助。该奖项反映了NSF的法定任务，并认为使用基金会的知识分子和更广泛的影响审查标准，认为值得通过评估来获得支持。