Development of Hydrogeology Experimental System for Radiolabeled Fluid and Colloid Imaging

放射性标记流体和胶体成像水文地质实验系统的开发

• 批准号: 2002412
• 负责人: Christopher Zahasky
• 金额: $ 25.65万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2002412&HistoricalAwards=false
• 关键词: Development; Hydrogeology; Experimental; System; Radiolabeled

This Division of Earth Sciences Instrumentation and Facilities Program grant supports development of a novel experimental system capable of performing Positron emission tomographic (PET) imaging of fluid flow through permeable geologic media. PET is a technique widely used for cancer research and therapy. The apparatus would be used to make quantitative measurements of fluid flow in heterogeneous subsurface environments with applications to important scientific questions in hydrogeology, subsurface energy resources, and environmental science. This project will enhance scientific infrastructure for research and education. The enhanced infrastructure will facilitate interdisciplinary research collaborations, with a focus on developing new partnerships with minority serving institutions and regional universities. The experimental system and associated research projects will provide research opportunities that will cultivate full participation of underrepresented demographics in science and higher education.The system will be capable of safely handling, injecting, imaging, and disposing of pressurized short-lived radiolabeled fluids, gases, and colloids to support multiscale, multiphase flow experiments that will expand existing fluid flow experimental techniques and imaging utilization in hydrogeology and subsurface energy resources research. The experimental apparatus would be mobile and would take advantage of a positron source at the University of Wisconsin’s veterinary school. Research applications have implications for remediation efforts within contaminated aquifers, efforts to limit nanoparticle contamination of groundwaters, exploration of engineering solutions and ramifications of subsurface CO2 sequestration, and improving efficiency of geothermal energy production.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.

该地球科学仪器和设施计划拨款支持开发一种新的实验系统，能够对通过可渗透地质介质的流体流动进行正电子发射断层扫描（PET）成像。 PET是一种广泛用于癌症研究和治疗的技术。 该装置将用于定量测量非均匀地下环境中的流体流动，并应用于水文地质学、地下能源和环境科学中的重要科学问题。该项目将加强研究和教育的科学基础设施。加强基础设施将促进跨学科研究合作，重点是与少数群体服务机构和区域大学发展新的伙伴关系。实验系统和相关的研究项目将提供研究机会，培养代表性不足的人口在科学和高等教育的充分参与。该系统将能够安全地处理，注射，成像和处置加压的短寿命放射性标记的流体，气体和胶体，以支持多尺度，多相流实验，将扩大现有的流体流动实验技术和成像利用水文地质和地下能源研究。实验装置将是移动的，并将利用威斯康星州兽医学院的正电子源。 研究应用对受污染含水层的修复工作、限制地下水纳米颗粒污染的工作、地下二氧化碳封存工程解决方案和分支的探索以及提高地热能生产效率具有重要意义。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Quantification of the Impact of Acidified Brine on Fracture-Matrix Transport in a Naturally Fractured Shale Using in Situ Imaging and Modeling

• DOI: 10.1021/acs.energyfuels.3c01463
• 发表时间: 2023-07
• 期刊: Energy & Fuels
• 作者: C. Zahasky;M. P. Murugesu;T. Kurotori;Collin R. Sutton;J. Druhan;B. Vega;S. Benson;A. Kovscek

An approach for image-based quantification of fines migration in geologic columns and core samples

基于图像的地质柱和岩心样品中细粒迁移的定量方法

• 发表时间: 2022
• 期刊: Society of Core Analysts
• 作者: Sutton, Collin;Zahasky, Christopher
• 通讯作者: Zahasky, Christopher