Casing Gun 2
Casing Gun 2 :
(n.) Perforating. 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 gun, perforating charge, perforation density, shaped charge
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