INTRODUCTION1.1 Background of studyNodal analysis also known as “system analysis” is a systematic procedure/approach applied to the enhancement or optimization of production of oil and gas wells by analyzing and evaluating the complete production system. Every component that constitutes the production system can be optimized to achieve the objective production (flow) rate most economically. The production system comprises of flow of hydrocarbon fluids from the reservoir to the surface production facilities, and including inflow performance, as well as flow across the completion, up the tubing string (including any down hole restrictions and safety valves) across the surface choke (if applicable), through horizontal flow-lines.The production system can be relatively simple or can include many components in which energy or pressure losses occur (fig, 1-1).

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