دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an accessory to a fishing tool, placed above it. If the tool cannot be disengaged from the fish, the safety joint permits easy disengagement of the string of pipe above the safety joint Thus, part of the safety joint and the tool attached to the fish remain in the hole and become part of the fish.

n: a toolthat is often run just above a fishing tool.if the fishing tool has gripped the fish but can not pull it free, the safty jiont will allow the string to disengage by turning it from surface.

a joint above a piece of equipment that is designed to fail and allow recovery of the upper string.