Detection of gas leaks in the subsurface environment

Masoud Ghandehari, Gamal Khalil, Fletcher Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Leaking valves, connections and distribution pipelines are significant sources of fugitive gas and volatile chemical emissions in chemical manufacturing, gas production, transmission, and oil refineries. A gas leak detection method has been developed based on continuous monitoring of the oxygen concentration surrounding a natural gas pipeline. The method utilizes optical fibers coated with an oxygen permeable polymeric film containing a luminescent sensor molecule. When the specialty fiber is illuminated by a light source that excites the luminophor, the functional cladding compound has the ability to detect and quantify leaks by measuring small changes in oxygen concentrations in the surrounding environment. Key features of the technology include long-term performance based on well understood platinum porphyrin chemistry, in addition to the capability of distributed sensing using fiber optic evanescent field spectroscopy. Results of leak detection in various environments namely atmospheric conditions, dry sand as well as saturated sand is reported, along with test results on long term system performance.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA.A. Diaz, H.E. Aktan, H.F. Wu, S.R. Doctor, Y. Bar-Cohen
Pages154-161
Number of pages8
Volume5769
DOIs
StatePublished - 2005
EventNondestructive Detection and Measurement for Homeland Security III - San Diego, CA, United States
Duration: Mar 7 2005Mar 9 2005

Other

OtherNondestructive Detection and Measurement for Homeland Security III
CountryUnited States
CitySan Diego, CA
Period3/7/053/9/05

Fingerprint

Leak detection
sands
Oxygen
oxygen
Sand
Gases
gases
Evanescent fields
Natural gas pipelines
polymeric films
natural gas
Porphyrins
meteorology
Polymer films
porphyrins
Fiber optics
Light sources
Optical fibers
Platinum
fiber optics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ghandehari, M., Khalil, G., & Kimura, F. (2005). Detection of gas leaks in the subsurface environment. In A. A. Diaz, H. E. Aktan, H. F. Wu, S. R. Doctor, & Y. Bar-Cohen (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5769, pp. 154-161). [22] https://doi.org/10.1117/12.600350

Detection of gas leaks in the subsurface environment. / Ghandehari, Masoud; Khalil, Gamal; Kimura, Fletcher.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / A.A. Diaz; H.E. Aktan; H.F. Wu; S.R. Doctor; Y. Bar-Cohen. Vol. 5769 2005. p. 154-161 22.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ghandehari, M, Khalil, G & Kimura, F 2005, Detection of gas leaks in the subsurface environment. in AA Diaz, HE Aktan, HF Wu, SR Doctor & Y Bar-Cohen (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5769, 22, pp. 154-161, Nondestructive Detection and Measurement for Homeland Security III, San Diego, CA, United States, 3/7/05. https://doi.org/10.1117/12.600350
Ghandehari M, Khalil G, Kimura F. Detection of gas leaks in the subsurface environment. In Diaz AA, Aktan HE, Wu HF, Doctor SR, Bar-Cohen Y, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5769. 2005. p. 154-161. 22 https://doi.org/10.1117/12.600350
Ghandehari, Masoud ; Khalil, Gamal ; Kimura, Fletcher. / Detection of gas leaks in the subsurface environment. Proceedings of SPIE - The International Society for Optical Engineering. editor / A.A. Diaz ; H.E. Aktan ; H.F. Wu ; S.R. Doctor ; Y. Bar-Cohen. Vol. 5769 2005. pp. 154-161
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