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Leakage from pipelines

Gas pipeThe structural integrity of pipelines used to transport petrochemicals, biofuels, waste or other liquids over long distances is essential to minimise adverse environmental impacts. Underground electrical lines also require the use of a coolant, which is typically injected with a tracer gas such as a perfluorocarbon to make it easier to identify leaks.

Factors causing pipeline leakage are numerous, and include:

  • Landslides and earthquakes.
  • Severe weather.
  • Vandalism.
  • Unauthorised extraction.
  • Corrosion or metal fatigue.

Continuous monitoring of pipelines is therefore essential in order to minimise leaks of hazardous materials. Alongside methods based on identifying discrepancies in pipeline flows, chemical monitoring can also be used to precisely identify the section of pipeline affected and allow rapid remedial action to be taken.

What Markes can offer

Pumped or passive sampling directly onto sorbent tubes can be carried out using a specialist soil sampler such as Markes’ VOC-Mole, with analysis by thermal desorption (TD)–GC–MS (for example, using Markes’ UNITY or TD-100 thermal desorbers).

Thermal desorption equipment such as Markes’ TT24-7 near-real-time continuous sampler can also be employed in mobile laboratories for rapid assessment at the site of a leak.

Further information

  • For more information on the application of TD technology to contaminated land, see Application Note 029.
    Markes International Ltd
    Gwaun Elai Medi-Science Campus
    RCT, CF72 8XL
    Tel: +44 (0)1443 230935
    Markes International GmbH
    Bieberer Straße 1-7
    63065 Offenbach am Main
    Tel: +49 (0)69 6681089-10
    USA (West)
    Markes International, Inc.
    2355 Gold Meadow Way
    Gold River, Sacramento
    California 95670
    Tel: +1 866-483-5684 (toll-free)
    Markes Instruments (Shanghai) Co., Ltd
    Unit 1002, Building 1
    No.418, Guilin Road
    Shanghai 200233
    P.R. China
    Tel: +86 21 5465 1216
    Part of Schauenburg International

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