The typical GLR sensitivity curves for gas-lift design and optimization are obtained for a constant wellhead pressure when the system sensitivity study is for a single well system and for a first-stage separator pressure or fixed pressure when the system sensitivity study is for a complete surface production network modeling.
In this paper a production analysis for a six gas-lifted wells system with a new representative curves for gas-lift optimization is presented. These new representative curves were obtained for the complete surface production network modeling that links the well models with the surface network model. Two cases are analyzed: 1) All the six wells are operating and flowing simultaneously and 2) Only one well is operating and flowing alone. The representative curves for each case analyzed were compared with the typical GLR sensitivity curves. The results show that the representative curves are in a better agreement with the profile of measured data.