The oil and gas industry is a significant contributor to methane emissions. Most methane leaks occur during gas transportation and storage in underground storage facilities. Since inspections must be carried out at least twice a year – in the spring and autumn (the period of soil movement) – it is necessary to use technologies that will allow the fastest and most effective monitoring of the condition of gas pipelines and the identification of natural gas leaks.
Pergam Group has developed and manufactured portable remote gas detectors ALMA (Airborne Leak Methane Assessment) since 2004. They have been used for remote inspections of pipelines – from helicopters and other aircraft – worldwide for 20 years. Development of ALMA has continued, seeking to improve operation, its usability, the convenience of its data presentation, and more. ALMA Generation 4 (G4) has been used for inspection work since 2018 and was used during the helicopter field test described below. The main goal of this field test was to confirm the detection of an artificial methane leak with a gas flow rate of 17 g/hour, which is accepted as the detection limit for inspections of pipelines in the European Union by airborne gas detectors.
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