slakkengaas

Slakkengaas is a Norwegian term used in industrial contexts to describe a residual or vented gas associated with pressure changes, depressurization, or maintenance in piping, processing facilities or mining operations. The exact interpretation of the term varies by sector, and there is no universally accepted definition or fixed composition for slakkengaas.

In oil and natural gas production and processing, slack gas often refers to a portion of gas that is separated from liquids but is not destined for sale or full treatment. This gas may be vented to a flare or used as purge gas to clear lines and maintain safe pressure during operations. The handling and disposition of slack gas are governed by safety, environmental, and regulatory requirements, which can differ by country and facility.

In other industrial settings, such as mining or equipment maintenance, slakkengaas can describe gas released during depressurization, purge, or clearance of equipment and systems. The exact gas composition in these cases depends on the materials and processes involved, and may range from hydrocarbon-rich mixtures to inert gases.

Safety and environmental considerations are central to slack gas management. Because slack gas can be flammable, explosive, or toxic depending on the gases present, facilities rely on gas detection systems, proper ventilation, flare or capture systems, and adherence to relevant regulations and standards. See also vent gas, purge gas, and flare gas for related concepts.