The main function of a slotted liner is to control sand production and enhance oil recovery in oil wells. The slots in the liner allow oil to flow through while keeping the sand out. They also provide support to the formation and prevent it from collapsing, which can lead to well failure. Slotted liners are used in both cased and open hole completions and can be made of various materials such as steel, plastic, or composite. Their use can increase the efficiency of oil production by reducing the need for costly sand control measures and minimizing damage to the reservoir. Overall, slotted line
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