Paper: The Fundamentals of Gas Lift

The practice of lifting fluid from subsurface levels with gas pressure is not new; it has been in use for many years and is now recognized as a major method of artificial lift in petroleum production. Until recent years a detailed study of gas lift operating principles was relatively unimportant because of the low value of natural gas. With increasing gas value a study of the principles became imperative. This study has led to much advancement in development of the practice, principles and equipment.