This paper demonstrates the benefits to be gained fromperformance analysis of gas-lifted vertical and horizontal wellsin Hassi R'mel oil rim, where significant incremental oilproduction rate can be achieved as water-cut increases andreservoir pressure declines by a comprehensive approach to theproblem of gas-lift production optimization. An artificial-lift method in which gas is injected into theproduction tubing to reduce the hydrostatic pressure of the fluidcolumn. The resulting reduction in bottomhole pressure allowsthe reservoir liquids to enter the wellbore at a higher flow rate. The injection gas is typically conveyed down the tubing-casingannulus and enters the production train through a gas-liftvalves. The gas-lift valve position, operating pressures and gasinjection rate are determined to ensure maximum wellproductivity by specific well conditions. The gas lift software used provides the ability to accuratelydesign and maintain efficiency of gas lift production systems, bycombining data acquisition and automation with proven gas liftengineering techniques. Additionally, root causes of failurescan be systematically identified using sensitivity analysis tools. Combined well and flowline performance was analyzed witha multiphase network hydraulic simulator that determinedmaximum transport capacity of the well and flowline systemwhile ensuring that reservoir simulator, wellbore, and facilitiesconstraints were met.
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