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Natural Gas Leak Detection in Pipelines

Technology Status Report on Natural Gas Leak Detection in Pipelines Prepared for Department of Energy National Energy Technology Laboratory 3610 Collins Ferry Road, P. O. Box 880 Morgantown, WV 26507-0880 by Yudaya Sivathanu En Urga Inc. 1291-A, Cumberland Avenue West Lafayette, IN 47906 Contract Number: DE-FC26-03NT41857 Distribution: Attn: Daniel Driscoll, NETL Jongmook Lim, En Urga Inc. Vinoo Narayanan, En Urga Inc. ANALYSIS OF COMBUSTION SYSTEMS DISCLAIMER "This Technology Status Report was prepared with the support of the Department of Energy, under Award No. DE-FC26-03NT41857. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the author and do not necessarily reflect the views of the DOE".

Since methane is much lighter than air, the density difference provides a signature that can be used as an indicator of a potential leak. Backscatter imaging utilizes a carbon-dioxide laser to illuminate the area above the pipeline. The natural gas scatters the laser light very strongly.

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