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Volume 8, Issue 4 (Suppl) J Pet Environ Biotechnol, an open access journal
ISSN: 2157-7463 Oil Gas Expo 2017
July 13-14, 2017
Oil and Gas
July 13-14, 2017 Berlin, Germany
3rd International Conference and Expo on
Anisotropic optical response of oil shale at terahertz range
Xinyang Miao
China University of Petroleum, China
Oil shale, a finely grained sedimentary rock with kerogen contained, has been gradually developed in China since the 1920s.
Numerous oil and gas products as fuels and rawmaterials in petrochemical industries can be yielded by pyrogenation of kerogen.
Generally, shales as well as oil shales are often highly anisotropic owing to various combined effects. Ultrasonic measurements
have demonstrated that the elastic properties are isotropic in the directions parallel to the bedding, while anisotropic in other
directions. Owing to the unique advantages, Terahertz (THz) technique has been applied in various research areas of oil and gas
exploration recently, including exploration and development of oil and gas reservoirs, transportation of oil-gas as well as evaluation
of petrochemicals and pollutants. Meanwhile, THz technique has also been employed to study the anisotropic response of materials.
In this paper, THz technique was employed to investigate anisotropic response of oil shales from Longkou, Yaojie and Barkol with
different oil yield. All the samples had significant anisotropy of refractive index (n) and absorption coefficient (α) with symmetries at
the location of 180º, which were corresponded with the bedding plane and the partial alignment of particles. Besides, the D-values
of experiment n in the vertical and parallel direction of the bedding plane were calculated as Δn’= n^-n||, and samples from Beipiao
and Huadian were also tested in the horizontal and vertical directions for a sufficient number of THz parameters. Linear regression
was built between the Δn’ of the samples from five regions and the oil yield, described as y=60.86x+3.72 for oil yield (y) and Δn’ (x),
with the correlation coefficient R equaled 0.9866 and the residual sum of squares was 1.182, indicating THz technology could be an
effective selection for evaluating the oil yield in oil shales from different regions.
Figure-1: (a) θ dependent measured n values of the samples (dots) and calculated n (dotted curve) from Longkou, Yaojie
and Barkol, respectively. (b) Experimental value of α at 0.8 THz (dots) as a function of angle along with the expected angular
dependence of calculated α (dotted curve).
Biography
Xinyang Miao is currently a PhD candidate in Material Science and Engineering at China University of Petroleum, Beijing, China. His main research interest is oil
and gas optics, including rock physics and application of terahertz technology.
Xinyang Miao, J Pet Environ Biotechnol 2017, 8:4 (Suppl)
DOI: 10.4172/2157-7463-C1-034