XN LOCK MANDREL

The “XN” Lock Mandrels are similar to the “X”, except for the locking keys. The keys for the “XN” Mandrels are chamfered so they will pass through a “X” Profile Nipple uphole. This allows the “XN” Mandrel and flow control to be lowered through “X” Profile Nipples in the tubing string to land in a “XN” Profile Nipple, which is always installed in the lower end or on bottom of the tubing string. The NoGo shoulder of the “XN” Lock Mandrel is located on the flow control device.