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Proceedings Paper

Underground fluid composition analysis based on the near infrared spectrum
Author(s): Wenxi Li; Yanbiao Liao; Min Zhang
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Paper Abstract

The near-infrared spectrum is very practical for real-time analyzing in the field of industry. This paper describes the structure of optical system, which is a part of the well logging instruments. The optical system is designed to analyze the composition of underground fluid, using the differences between oil and water in near-infrared absorption. Using Beer- Lambert law, the article analyzes the light intensity when broad-spectrum light passes through the liquid. According to the results of analysis, a group of wavelength including center wavelength and bandwidth can be selected. With each selected wavelength, light intensity changes significantly as the concentration of liquid changes. By measuring the light intensity, the system can analyse the composition of underground fluid.

Paper Details

Date Published: 23 November 2011
PDF: 7 pages
Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 81991J (23 November 2011); doi: 10.1117/12.907222
Show Author Affiliations
Wenxi Li, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)
Min Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 8199:
2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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