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salt plug

1. n. [Well Completions]

A temporary plugging agent comprising graded granules of salt that form a physical or hydraulic barrier. The different grain sizes are prepared as a slurry for placement, then allowed to settle into a plug. The resulting plug typically provides good mechanical and hydraulic strength to enable safe treatment of an adjacent zone. On completion of the treatment, the temporary salt plug is easily removed by circulating a water-base fluid to dissolve the plug.

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