SPE Petroleum Engineering Certification Exam

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Plunger lift is an artificial lift method that is most effective and economically advantageous under which specific set of reservoir and well conditions?

Low bottom-hole pressure, low productivity index, and high water cut. High bottom-hole pressure, high productivity index, and low gas-liquid ratio. High gas-liquid ratio, sufficient bottom-hole pressure to lift the plunger, and a tendency for liquid loading. Deep wells with highly viscous crude oil and significant sand production.

Correct Answer:

High gas-liquid ratio, sufficient bottom-hole pressure to lift the plunger, and a tendency for liquid loading.

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