A study has been conducted on pressure drop modeling in horizontal two-phase flow in order to extend the corrosion prediction software package, DREAM, into offvertical wells and collection lines. Thermodynamic pressure has a significant influence on the amount of liquid present in gas wells which, in turn, influences the flow regime and mass transfer. Thus an accurate pressure drop model is essential to the prediction of corrosion rate. Four pressure drop models were evaluated for stratified flow, and three pressure drop models were evaluated for annular flow. The results from the pressure drop models were compared with experimental data. Based on the comparison with the experimental data, the best available pressure drop models are the model of Spedding and Hand for stratified flow and the Olujic model for annular flow.
Key Words: Pressure Drop, Two-Phase Flow