An Empirical Correlation Governing Gas-condensate Flow Through Chokes

Field production test data from 17 gas condensate wells in seven Iranian fields were used to develop an empirical correlation governing two-phase flow of gas condensate through wellhead chokes under sonic flow condition. In the new correlation liquid flow rate is a function of choke upstream pressure, choke size, and producing gas to liquid ratio. The predicted liquid flow rates using the new correlation are in excellent agreement with actual data. Statistical error analysis shows that results are statistically superior to those predicted by other published correlations considered in this work.