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Designed for high-pressure, high-volume large bore completion systems

The Halliburton Otis® RPT® no-go landing nipple system provides a means of running a series of positive location landing nipples in a tubing string with minimum restriction. Otis RPT no-go landing nipples are designed to accept Otis RPT and RPTS lock mandrels.
 
The Otis RPT and RPTS no-go lock mandrels locate on top of the nipple’s polished bore; therefore, there are no secondary restrictions normally associated with bottom no-go profiles. This feature makes Otis RPT systems well suited for high-pressure, high-volume large bore completions. Otis RPT and RPTS lock mandrels in any given size range are designed to use the same running tool and pulling tool.
 
Some of the original RPT series lock mandrels were designed with large no-go profiles that were not compatible with the 1/16-in. sealbore ID reductions between nipples that are currently available. For these sizes, the RPTS series of locks was developed. All RPTS lock mandrels incorporate no-go profiles that allow a 1/16-in. sealbore stagger in the completion design. The reduction in no-go OD on the RPTS lock mandrels does not affect their pressure rating.
 

Applications

  • High-pressure, high-temperature large bore completions 
  • Running a series of no-go nipples in a tubing string when positive location and minimal ID reduction are required

Features

  • Large bore 
  • All RPTS locks and most RPT locks will allow a 1/16-in. stagger in nipple bore sizes 
  • Lock mandrel locates on top of the nipple’s polished bore 
  • A series of profile IDs are established for common tubing strings by size and weight  
  • The reduction in no-go OD on the RPTS lock mandrel does not have any effect on their pressure rating

Benefits

  • No secondary restrictions normally associated with bottom no-go profiles 
  • Lock mandrels in a particular size range use the same running and pulling tool

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