Perforating Equipment and Accessories

Devices used to create holes in the casing to connect the formation to the casing ID and accessories such as circulating subs, tubing releases, shock absorbers, Y block assemblies, blast joints, gun hanger systems, and swivel subs.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards

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