含油岩心显微红外光谱成像方法的研究

doi:10.3964/j.issn.1000-0593(2009)02-0451-04

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Abstract In the present paper, the authors examined some oily core by microscopic infrared spectral imaging methods. Those methods can be classified in three modes, referred to as “transmission mode”, “reflection mode” and “attenuated total reflection(ATR) mode”. The observed oily core samples belong to siltstone. The samples were made of quartz(～20%), feldspar(～50%) and other rock(igneous rock 25%, metamorphic rocks 1%, sedimentary rock 4%);a little recrystallized calcite (～1%) was in the pore, and the argillaceous matter was distributed along the edge of a pore. The experimental work has been accomplished using SHIMADZU Model IRPrestige-21 Fourier transform infrared spectrophotometer plus AIM8800 infrared microscope. For IRPrestige-21, the spectral range is 7 800-350 cm^-1,spectral resolution is 1 cm^-1,and AIM8800 microscope with motorized stages has a resolution of 1 micrometer. The experiment was preformed at room temperature. In “transmission mode” infrared spectral imaging method, the spectral range was limited in wavenumbers greater than 2 000 cm^-1 because the base glass piece has strong light absorption. In contrast with “transmission mode”, in “attenuated total reflection(ATR) mode”, the depth of penetration into sample is very small (1-2 micrometer), then the absorbance value has nothing to do with base glass piece light absorption. In microscopic infrared transmission spectra, the experimental result shows that there are some strong absorption peaks at 2 866, 2 928, 3 618 and 2 515 cm^-1.respectively. The former two peaks correspond to methyl(methylene) symmetrical and unsymmetrical stretch vibration mode, respectively. The latter two peaks correspond to hydroxyl-stretch vibration mode and S—H, P—H chemical bond stretch vibration mode, respectively. In microscopic longwave infrared ATR spectra, there are other stronger absorption peaks at 1 400, 1 038 and 783 cm^-1 respectively, corresponding to methyl(methylene) widing vibration mode and optical mode of quartz crystal, respectively. On the basis of the above-mentioned experimental result, the authors have separately accomplished microscopic infrared transmission and ATR spectral imaging using mapping procedure. The “transmission mode” and “ATR mode” have their own advantage and disadvantage. According to specific structural and spectral properties of sample and the practical research goal, we should select a practical procedure.

Key words：Core;Microscopic infrared spectral imaging;Spatial resolution;Spectral resolution

Received: 2007-10-08 Accepted: 2008-01-09

ZTFLH:	O433.5
	P599

Corresponding Authors: HUANG Qiao-song E-mail: phhqs@163.com

Cite this article:

HUANG Qiao-song,YU Zhao-xian,LI Jing, et al. Microscopic Infrared Spectral Imaging of Oily Core[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(02): 451-454.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2009)02-0451-04 OR https://www.gpxygpfx.com/EN/Y2009/V29/I02/451

[1] LI Yan-zhou, MIN Shun-geng, LIU Xia(李彦周，闵顺耕，刘霞). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2007，27(7)：1299.
[2] NIE Zhi-dong, HAN Jian-guo, ZHANG Lu-da, et al(聂志东，韩建国，张录达，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2007，27(4)：691.
[3] ZHOU Yan-ru(周炎如). Acta Sedimentologica Sinica(沉积学报)，1994，12(4)：22.
[4] Wolfe W. Introduction to Imaging Spectrometers, SPIE Optical Engineering Press, 1997.
[5] YANG Rui，WANG Kun-hua，YU Jian，et al(杨睿，汪昆华，于建，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2006，26(5)：821.
[6] YANG Sheng-jun, ZOU Duo-sheng, SHI Lin(杨胜军，邹多生，石琳). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2007，27(3)：477.
[7] ZHANG Zong-gui, WANG Run-sheng, GUO Da-hai，et al(张宗贵，王润生，郭大海，等). The Research of Method Techniques on Mineral and Rocks Identification and Analysis on the Influence Factors Using Imaging Spectrometer Remote Sensing Data(成像光谱岩矿识别方法技术研究和影响因素分析). Beijing: Geological Publishing House(北京：地质出版社)，2006.
[8] PU Rui-liang, GONG Peng, et al(浦瑞良，宫鹏, 等). Hyperspectral Remote Sensing and Its Applications(高光谱遥感及其应用). Beijing: Higher Education Press(北京：高等教育出版社), 2000. 47.
[9] TONG Qing-xi, ZHANG Bing, ZHENG Lan-fen, et al(童庆禧，张兵，郑兰芬, 等). Hyperspectral Remote Sensing: Principle, Technology and Application(高光谱遥感—原理、技术与应用). Beijing: Higher Education Press(北京：高等教育出版社), 2006. 390.
[10] ZHAO Ying-shi(赵英时). The Analysis Theory and Method of Remote Sensing Applications(遥感应用分析原理与方法). Beijing: Science Press(北京：科学出版社)，2003. 471.
[11] Mirabella F M. Internal Reflection Spectroscopy，Marcel Dekker, Inc., 1993. 58.
[12] Harrick N J. Internal Reflection Spectroscopy，Interscience Publishers, 1967. 30.
[13] WU Jin-guang(吴瑾光). Modern FTIR Spectral Technology and Application, Second Volume(近代傅里叶变换红外光谱技术及应用, 下卷)． Beijing: Literature Press of Science and Technology(北京：科学技术文献出版社). 1994. 129.
[14] ZHANG Guang-yin, LAN Guo-xiang, WANG Yu-fang(张光寅，蓝国祥，王玉芳). Lattice Vibration Spectroscopy(晶格振动光谱学). Beijing: Higher Education Press(北京：高等教育出版社), 2000. 47.
[15] Famer V C Edited(V C法默编著). The Infrared Spectra of Minerals(矿物的红外光谱). Beijing: Science Press(北京：科学出版社)，1982. 227.