industrial oil degassing is vacuum processing, which removes air and water solved in the oil. This can be achieved by: spraying of oil in large vacuum chambers; distributing the oil into a thin layer over special surfaces (spiral rings, Raschig rings etc) in vacuum chambers. Under vacuum, an equilibrium between the content of moisture and air (solved gases) in the liquid and gaseous phase is achieved. The equilibrium depends on the temperature and the residual pressure. The lower that pressure, the faster and more efficiently are water and gas removed. Unintended degassing Unintended degassing can happen for various reasons, such as accidental release of methane ( ) from the seabed during human activity such as underwater exploration by the energy industry. Natural processes such as tectonic plate movement can also contribute to methane release from the ocean floor. In both cases, the volume of released can be a significant contributor to climate change. See also Degas conductivity Degassed water Limnic eruption Outgassing (includes geological and volcanic emissions) Volcanic gas References Laboratory techniques Gas-liquid separation