"TICR" / "TICRN" Lock

Description

The “TICR” Locking Mandrel is a selective lock that can be installed in the “TICR” Landing Nipple. They are used in heavier weight tubing due to higher well pressure. These locking mandrels use keys that lock into a profile in the landing nipple that allow it to hold pressure differential from either above or below. This lock can be used in conjunction with pump through plugs, positive plugs, safety valves, and standing valves. The “TICRN” Locking Mandrel is the “no go” version of the usually selective locks. The keys have an angled shoulder on them instead of the square shoulder of the selective locks. A “no go” shoulder of an equalizing sub or a crossover sub made up the the bottom of the lock must make contact with a bore restriction in the “no go” nipple in order to lock this mandrel in the appropriate nipple. This locking mandrel can be used in conjunction with pump through plugs, positive plugs, safety valves, bottom hole chokes, and standing valves.