Abstract
The purpose of this work is to study the performance of multiphase flow in five wells located in Abu-Attifel field and three oil wells located in El-Ghani field. Two computer programs are developed using the “C” Programming Language in an attempt to test the Hagedorn & Brown correlation and the Poettmann & Carpenter correlation, which are widely used in the petroleum industry, against actual field measurements. The two correlations are then used to investigate the effect of tubing size, direction of pressure traverse calculation, and the contribution of each term in the general energy equation on the total pressure gradient. The programs are then modified in order to produce a new set of working charts for Abu-Attifel oil field. The new charts can predict the vertical-lift performance in Abu-Attifel oil wells more accurately than those available in the literature simply because they exhibit a wider range of pressure, depth, and production rate. The programs can further be used to produce working charts for any other oil field provided that some production data is available.