PRODUCT CODE 10: G and N LOCK MANDRELS For LANDING NIPPLES.
Lock Mandrel Sub-Assemblies are devices used to position and secure Wireline retrievable downhole equipment into pre-set Tubing Nipples with appropriate profiles. These Locks have External Fishing Neck and large flow areas for use in high volume completions. The Latch with Collet type locking fingers prevent upward movement, while No-Go shoulders prevent downward movement.
Rebco Type 'ROTG' and 'ROTN' are Top No-Go, Lock Mandrel Sub-Assembly to be set into Type 'BF' and Type 'BJ' Landing nipples, and Type 'BL' Sliding Sleeve. Type 'ROTG' Lock is basically a Type 'ROTN' Lock Sub-Assembly less the Packing Unit and Packing Mandrel.