Prediction of Critical Gas Velocity of Liquid Unloading for Entire Well Deviation

Liquid loading is a common production problem in mature gas wells. Correct prediction of the critical gas velocity at which the well starts to load is very important to the operators because it may allow them to take appropriate measures to prevent liquid loading and extend well production life. In this paper, a database related to the critical gas velocity is compiled with data from published literature. A new model is developed and evaluated with the experimental data.

Introduction

Gas wells often produce water and other condensate.