METHOD FOR DETERMINING AGGREGATIVE STABILITY OF AN OIL-WATER MIXTURE (VARIANTS) Russian patent published in 2023 - IPC G01N33/26 

FIELD: oil production.

SUBSTANCE: method for determining the aggregative stability of an oil-water mixture, including sampling, degassing and settling a sample, separating and measuring the volume of free water V_fr, centrifuging the settled oil-water mixture and measuring the released volume of aggregatively unstable water V_{agr unst}, destroying the water-oil mixture located in the container with the sample, when it is exposed in a container with water in a constant electric field, created cyclically in water until the formation of a water-oil interface in a container with a sample, with the determination of the number of cycles, the measurement of the released volume of aggregation-stable water V_{arg unst} and the subsequent calculation of the value of the aggregative stability of the water-oil mixture according to the formula

where A_s is the aggregative stability of the water-oil mixture, V_tot is the total proportion of water in the sample taken, V_{agr unst} is the proportion of aggregatively unstable water.

EFFECT: determination of aggregative stability of an oil-water mixture in field conditions with an aggregative-stable water content of more than 10%, an increase in the reliability of determining the aggregative stability of an oil-water mixture.

2 cl, 6 dwg