I-Corps: High-frequency ultrasound technology for the detection of micro and nano porosity, shale softening and anisotropy of materials

I-Corps：高频超声技术，用于检测微米和纳米孔隙度、页岩软化和材料的各向异性

• 批准号: 2223852
• 负责人: Jay Meegoda
• 金额: $ 5万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-05-01 至 2022-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2223852&HistoricalAwards=false
• 关键词: Corps; frequency; ultrasound; technology; detection

The broader impact/commercial potential of this I-Corps project is the development of a novel ultrasound technology to characterize deep geological media for energy exploration and waste disposal. The incorporation of high frequency ultrasound technology is investigated to non-destructively obtain the rock porosities. By developing an in situ device to determine the porosity of a rock matrix, the team seeks to determine the extent of softening that occurs due to fracking. This technology has potential for use in a wide variety of infrastructure applications. By developing a new method to determine the porosity of rock matrices and the in-situ rock permeabilities directly in the field and at a smaller scale (in the nano and micro ranges), this research team seeks to increase the productivity of companies that require (in)direct seismic data acquisition (e.g., Drilling Engineers, Wireline Engineers, Seismic Acquisition Engineers, Seismic Processing Engineers, Petro-Physicists and Geophysicists).This I-Corps project is based on the development of high-frequency ultrasound technology. Ultrasound technology is a non-destructive technology that generates mechanical waves from ultrasound transducers. The technique has been increasingly utilized in studying the lithology of the Earth. The in-situ use of ultrasound coupled with a new modelling capabilities, may provide a quicker, more environmentally friendly, and inexpensive alternative to field investigation. The new technology will be used ot determine the porosity of rock matricies as well as the possible softening that occurs due to fracking. The wave velocity can be determined by transmitting high-frequency ultrasound waves (200Hz) through the rock specimens and relating the measured velocity to micro- and nano-scale voids. Once the wave velocity function has been determined, the team will transmit a range of higher frequencies whose wavelengths are closer to the size or micro- and nano-scale voids in the rock matrix. The attenuation, time, and velocity of the waves at higher frequencies will be compared to determine the porosity.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.

这个I-Corps项目的更广泛的影响/商业潜力是开发一种新的超声技术，用于表征能源勘探和废物处理的深层地质介质。研究了结合高频超声技术无损获取岩石孔隙度的方法。通过开发一种原位设备来确定岩石基质的孔隙度，该团队试图确定由于压裂而发生的软化程度。这项技术有可能用于各种基础设施应用。通过开发一种新的方法来直接在现场和更小的规模（在纳米和微米范围内）确定岩石基质的孔隙度和原位岩石渗透率，该研究团队寻求提高需要直接地震数据采集的公司的生产率（例如，钻井工程师、电缆工程师、地震采集工程师、地震处理工程师、石油物理学家和地球物理学家）。超声波技术是一种非破坏性技术，从超声波换能器产生机械波。 该技术已越来越多地用于研究地球的岩性。现场使用超声波加上新的建模能力，可以提供一个更快，更环保，更便宜的替代现场调查。这项新技术将用于确定岩石基质的孔隙度以及由于压裂而可能发生的软化。波速可以通过将高频超声波（200 Hz）发射通过岩石样本并将测量的速度与微米和纳米级空隙相关联来确定。一旦确定了波速函数，该团队将发射一系列更高的频率，其波长更接近岩石基质中微米和纳米级空隙的大小。将比较高频波的衰减、时间和速度，以确定孔隙度。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。