Modeling Unsteady Processes in a Main Oil Pipeline under Conditions of Uncertainty

Abstract

This article explores the development of a model for technological processes in an oil trunk pipeline that operates in uncertain conditions. When considering technical modes, the major oil pipeline is considered as a complicated system with an adjustable structure and variable characteristics. A mathematical model that describes the temporary changes in the oil pipeline that happen when pumping begins or ends, when taps are turned on or off, when shut-off and control valves are operated, and during incidents such as pipe ruptures and blockages. The analysis focuses on the dynamic variations in pressure and flow within the pipeline as key factors in the oil flow. The Matlab/SimHydraulics program is used to calculate the state of the pipeline in terms of its fundamental distributed parameters and under non-stationary operation conditions. Subsequently, the suggested methodology is implemented to address the issue of modeling dynamic processes in the segment of the primary oil pipeline. Therefore, the knowledge acquired by constructing non-stationary (dynamic) models in the pipeline can be utilized to enhance the effectiveness of forecasting and control systems when operating the primary oil pipeline.