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Petroleum question A 0.325 - ft diameter wellbore produces oil from an area of 320acres or 13939200 square feet.

Petroleum question

A 0.325 - ft diameter wellbore produces oil from an area of 320acres or 13939200 square feet. Analysis of pressure transient data from a well test gave a total skin factor of 25, and 70 % of the skin factor is solely due to drilling mud damage. Assuming the drilling mud damage can be removed completely with an acid treatment, estimate productivity index improvement after the treatment under steady state flow condition.

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