METHOD AND DEVICE FOR DETERMINING LOW-TEMPERATURE VISCOSITY, FILTRATION ABILITY AND IMPURITY OF OIL PRODUCTS Russian patent published in 2013 - IPC G01N11/00 

FIELD: oil and gas industry.

SUBSTANCE: method is based on the measurement of filling time of certain volume with oil product supplied via the tube under negative pressure action. By gradual product cooling, temperature is determined, at which the working volume filling time becomes higher than limit one - temperature of pumping ability (for oils) or filtration ability (for fuels). When determining low-temperature viscosity and pumping ability, the device tube filling time is measured. When determining filtration ability of fuels, filter is installed in addition, and capacity filling time is measured. When determining the impurity degree, the filling time of the capacity with filter is compared to that without any filter.

EFFECT: reduction of the time for determining low-temperature viscosity, pumping ability, filtration ability of oil products, degree of their impurity with mechanical impurities and possibility of determination of those properties.

5 cl, 3 dwg