DEVELOP OPTIMUM GAS LIFT METHODS TO IMPROVE GAS LIFT EFFICIENCY USING GAS LIFT PACK-OFF, DEEP GAS LIFT, AND DEEP LIFT SET

The utmost objective of oil and gas companies is to enhance the hydrocarbon recovery in a cost effective way for the entire field, and more importantly, to minimize both capital and operating costs, which can be achieved by selecting the optimum design of the field's production systems from the reservoir to surface facilities. The introduction of lift gas to a non-producing or low producing well is a common method of artificial lift. The gas lift systems are designed to help natural reservoir energy power of formation fluids to the surface at target rates, to maximize the life of oil wells generating. The concept of gas lifting is the reduction of the hydrostatic pressure in the production pipe by injecting lightweight fluid into the annulus, which pumps natural gas into the well at high pressure from the casing to wellbore and blends it with the fluids of the tank. This paper describes a unique gas lifted developed methods using gas lift pack-off, DGL, and deep-set techniques. Case studies from Asian oil fields were selected to apply the developed methods. The results show a notable production increment for all wells, which will extend the lifetime of the oil wells by applying some modifications to the existing gas lift system without adding more cost.