ABSTRACT

Because production must always be optimised, precise understanding of the mechanics of multi-phase flow and how it affects pressure drop along the oil-well flow string is becoming more and more crucial. For the efficient design of various industrial equipment, including gas-lift pumps, electric submersible pumps, separators, and flow strings, an accurate prediction of the pressure drop along the flow pipe is necessary. Pressure is a crucial factor in the oil and gas industry that is influenced by variations in fluid characteristics, flow conditions, and pipe geometry. The well's or reservoir's pressure is its energy. Extensive research has been done on this subject by numerous researchers, albeit in tiny diameter pipes. When modelling pressure drop in big diameter pipes (usually >100 mm), relying on these investigators' empirical correlations has been somewhat deceptive due to the restrictions imposed by the diameter at which these correlations were formed, as well as the range of conditions and data employed in their derivation. The experimental data used in this paper came from an investigation. Using the gas and liquid velocities, film %, gas and liquid properties, and pipe geometric features from the previously mentioned experiment, the frictional and total pressure decrease from six correlations were simulated. The results were analysed and compared to the experiment's conclusions.