casing gun | Energy Glossary

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casing gun

1. n. []

A perforating gun assembly designed to be used in a wellbore before the production tubulars or completion equipment have been installed, thus allowing access for a larger diameter gun assembly. Casing guns are typically 3- to 5-in in diameter and carry up to four perforating charges per foot.

See: carrier gunperforating chargeperforation densityshaped charge