AUTOMATED METHOD OF CALCULATING AND FINDING PRODUCT BALANCE OF OIL PRODUCTS ON PETROLEUM STORAGE DEPOTS AND FILLING STATIONS Russian patent published in 2009 - IPC G01F1/86 G01F17/00 G01F15/06 

FIELD: physics; measurement.

SUBSTANCE: before putting a new batch of oil products into a storage container, the level and density of the remaining oil product in the container is measured, and from the graduated characteristic of the container, the volume and mass of the oil product is calculated. This mass value is stored into a computer memory, and compared with documented mass of oil product, which is currently in the container from accounting records of remains, and the balance weight between them is calculated with determination of the sign of the balance weight. A new batch of oil product is put into the container. If a mass flow meter is used, then depending on the value and sign of the balance weight, the mass of oil product is corrected by increasing or decreasing the value of actual measurements of volume and density such that, the balancing weight lies within permissible limits. If a new batch is supplied only in accordance with the consignment note, the total mass of the oil product which is currently in the container based on the note is determined. This mass value is stored into a computer memory and compared with documented mass of oil product in the container from accounting records of remains. The balance weight between them is then calculated and the sign of the weight balance is determined, and the batch of the oil product is corrected such that, the weight balance value tends to coincidence. The invention increases the accuracy of accounting for mass of oil products due to elimination of cumulative errors, which enables detection of unsanctioned siphoning.

EFFECT: increased accuracy of accounting for mass of oil products due to elimination of cumulative errors, which enables detection of unsanctioned siphoning.