Abstract
Vertical steel tanks are a significant part of the main oil pipelines in terms of cost, purpose, and environmental impact. More than 30 % of vertical steel tanks will never be equipped with pontoons and floating roofs, but will be equipped with breathing valves, which are an ineffective means of reducing losses. The creation of excess pressure in the gas space of the tank requires control over it, while for tanks that have been in operation for a long time, a decrease in excess pressure and vacuum is allowed due to leakage of individual tank components. During the study, experiments were carried out to determine the change in pressure on 6 model tanks with a changing and stable filling level. As a result, it was revealed that it is necessary to analyze the change in pressure in the gas space of the reservoir by the operating organization online. This will allow timely detection of deviations in the operation of the tank and take the necessary action.
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