摘要
由于太赫兹波对极性物质有很高的灵敏度,因此可以利用太赫兹时域光谱技术检测沙粒中含有的微量原油。将微量的原油浓度与太赫兹衰减系数之间建立起线性模型。同时引入有效介质理论来证实太赫兹介电常数与原油含量低于200 ppm之间的线性关系。结果表明,太赫兹时域光谱技术可以成为检测沙粒中微量原油泄漏的有效方法。
Terahertz time-domain spectroscopy(THz-TDS)was used to detected the trace crude oil mixed into the sands away from wells due to the high sensitivity to polar substance.A linear model was established between the trace crude oil concentration and the terahertz attenuation coefficient.Effective-medium theory was introduced to confirm the linear relationship between the terahertz dielectric constant and the crude oil content below 200 ppm.The research suggests that terahertz time-domain spectroscopy can be an effective method for detecting the trace crude oil leakage in sands.
作者
任泽伟
詹洪磊
陈思同
李新宇
张燕
陈儒
孟昭晖
秦凡凯
赵昆
宝日玛
REN Zewei;ZHAN Honglei;CHEN Sitong;LI Xinyu;ZHANG Yan;CHEN Ru;MENG Zhaohui;QIN Fankai;ZHAO Kun;BAO Rima(Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection in Petroleum and Chemical Industry Federation,,School of New Energy and Materials,China University of Petroleum,Beijing 102249,China)
出处
《应用光学》
CAS
CSCD
北大核心
2020年第2期361-365,共5页
Journal of Applied Optics
基金
国家自然科学基金(11574401)
北京市自然科学基金青年项目(1184016)。
关键词
太赫兹时域光谱技术
微量检测
沙粒
原油
terahertz time-domain spectroscopy
trace detection
sands
crude oil
