Oilfield Glossary

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Note: Definitions provided on this website are for reference purposes only. Engineers and professionals should independently confirm all information using industry standards.

Bridge plug

A bridge plug is a downhole tool used to permanently or temporarily isolate the lower part of a wellbore. Unlike a retainer, it does not have a valve for pumping through; it is a solid plug.

Plugs are set to isolate old depleted zones before perforating new ones above, or for well abandonment. They can be drillable (cast iron/composite) or retrievable, depending on future plans for the well.

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