Flow measurement of oil-in-water flows in vertical low flow rate and high water-cut flow conditions

摘要

This paper reports on the flow measurement of oil-in-water flows with low flow rare and high water-cut in vertical 20mm inner diameter pipe. By using arc type conductivity sensor (ATCS) and cross-correlation flow meter (CCFM) based on conductance method, water holdup and mixture velocity are obtained. Afterward, oil-in-water flows drift-flux model is established to predict individual phase superficial velocity. The research results show that ATCS has high resolution on water holdup and CCFM performs well in mixture velocity measurement. Based on drift-flux model, individual phase superficial velocity can be predicted with high accuracy.