Quantification of Venting and Blowdown Operations

This week’s QLM Plume of the Week comes to us from a trial we did last fall with NPL and National Grid Gas at the NGG Bacton Terminal. This trial was on a live gas facility where QLM and NPL detected, localized, quantified and confirmed emission sources on gas assets. In this example, the plume was from an intentional venting operation. The QLM camera was able to see and quantify the plume from this source, located ~200m away, but much of the plume image itself was formed from laser light from the QLM lidar camera that scattered back from objects beyond the leak location -- scattering off trees in the background, located ~250m away. This really shows the power of the highly-sensitive, quantum (single-photon) detection at the heart of the QLM camera – you can visualize and quantify plumes from great distances, day or night.