›› 2014, Vol. 23 ›› Issue (12): 127802-127802.doi: 10.1088/1674-1056/23/12/127802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Terahertz time-domain spectroscopy of a simulated pore structure to probe particle size and porosity of porous rock

董晨a b, 宝日玛b, 赵昆a b c, 许长虹b, 金武军b, 钟寿仙c   

  1. a State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    b Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China;
    c Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection, China Petroleum and Chemical Industry Federation (CPCIF), Beijing 100723, China
  • 收稿日期:2014-07-17 修回日期:2014-09-01 出版日期:2014-12-15 发布日期:2014-12-15
  • 基金资助:
    Project supported by the National Key Basic Research Program of China (Grant No. 2014CB744302), the Specially Funded Program on National Key Scientific Instruments and Equipment Development, China (Grant No. 2012YQ140005), and the Beijing Natural Science Foundation (Grant No. 4122064).

Terahertz time-domain spectroscopy of a simulated pore structure to probe particle size and porosity of porous rock

Dong Chen (董晨)a b, Bao Ri-Ma (宝日玛)b, Zhao Kun (赵昆)a b c, Xu Chang-Hong (许长虹)b, Jin Wu-Jun (金武军)b, Zhong Shou-Xian (钟寿仙)c   

  1. a State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    b Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China;
    c Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection, China Petroleum and Chemical Industry Federation (CPCIF), Beijing 100723, China
  • Received:2014-07-17 Revised:2014-09-01 Online:2014-12-15 Published:2014-12-15
  • Contact: Zhao Kun E-mail:zhk@cup.edu.cn
  • Supported by:
    Project supported by the National Key Basic Research Program of China (Grant No. 2014CB744302), the Specially Funded Program on National Key Scientific Instruments and Equipment Development, China (Grant No. 2012YQ140005), and the Beijing Natural Science Foundation (Grant No. 4122064).

摘要: The particle sizes and porosities of simulated pore structures are probed by terahertz time-domain spectroscopy. A double-peak time-domain spectrum phenomenon is observed when the terahertz (THz) pulses illuminated a pore and a particle. The amplitudes of the two peaks depend strongly and monotonically on the particle size and porosity. A model is used to study the phenomenon, and the computational results agreed with the experimental measurements. These measurements indicate the terahertz spectroscopic behaviors of pores and particles, suggesting that terahertz spectroscopy can be used as a noncontact probe of porosity.

关键词: reservoir simulation, physical optics, terahertz spectroscopy, polymer

Abstract: The particle sizes and porosities of simulated pore structures are probed by terahertz time-domain spectroscopy. A double-peak time-domain spectrum phenomenon is observed when the terahertz (THz) pulses illuminated a pore and a particle. The amplitudes of the two peaks depend strongly and monotonically on the particle size and porosity. A model is used to study the phenomenon, and the computational results agreed with the experimental measurements. These measurements indicate the terahertz spectroscopic behaviors of pores and particles, suggesting that terahertz spectroscopy can be used as a noncontact probe of porosity.

Key words: reservoir simulation, physical optics, terahertz spectroscopy, polymer

中图分类号:  (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))

  • 78.20.Ci
78.30.Jw (Organic compounds, polymers) 78.47.jh (Coherent nonlinear optical spectroscopy)