A joint fieldwide study was conducted by a service company and exploration company to determine the optimum method of unloading gas wells in which production was limited by accumulation of liquids in the tubing. Various methods of unloading the wells were analyzed and compared. After evaluating different techniques, gas lift was determined to be the most effective and economical means of dewatering. Each well's characteristics were analyzed to determine the gains that could be achieved through continuous unloading. The analysis also identified the key wells that would benefit substantially from artificial lift and defined the system requirements necessary to place these wells on gas lift. After establishing the wells' performance characteristics, a full-system model was constructed. The model was used to evaluate the impact of the gathering and compression systems on the overall optimization and development of the field. Two scenarios were examined to determine the optimum configuration of the gathering system, compressors and injection lines. A gas lift distribution system was designed and evaluated for both cases. Finally, an economic analysis was performed for each scenario to determine the most cost-effective method of developing a dewatering system for the field.

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