МАСШТАБНЫЙ ПЕРЕХОД ПРИ ПРОГНОЗЕ ГИДРАВЛИЧЕСКОЙ ЭФФЕКТИВНОСТИ ПОЛИМЕРНЫХ ДОБАВОК С УЧЕТОМ ДЕГРАДАЦИИ

Abstract

Background Polymer degradation is a major factor limiting their use for oil and oil products transportation. Full-scale research of drag reducing additive (DRA) degradation in the field conditions is expensive. Therefore, the use of scale-up in transition from the laboratory unit on the base of a mathematical model, and the model identification are relevant. Aims and Objectives Processing of the results of the laboratory tests to determine the kinetic parameters of the DRA degradation. Development of a mathematical model of the flow in the pipeline, taking into account the degradation of DRA and using scale-up in transition from laboratory unit to commercial oil- and oil product pipelines. Methods Definition of the Virk equation parameters and degradation parameters on the basis of experiments on laboratory unit, and integration of the system of pressure loss equations, degradation kinetics and differentiated Virk equation. Determination of the local and integral hydraulic efficiency of DRA along the length of the pipeline on the basis of scale-up. Results The procedure of scale-up in estimating hydraulic efficiency of DRA was developed. To this end, a mathematical model was developed and identified on the basis of laboratory experiments.