dashFLOW CONTROL EQUIPMENT

P-R & P-RN Profile Landing Nipples

The P-R & P-RN Profile Landing Nipples are made up to the tubing string for a compatible Lock Mandrel to engage, seal and lock inside the internal profile to provide a setting point for flow-control equipment such as valves, chokes and plugs. The ‘P-RN’ Landing Nipples are considered ‘Non-Selective’ Locking Profiles and are typically run in single nipple tubing strings, or as the bottom nipple in a series of ‘Selective’ ‘P-R’ Nipples. This is due to the incorporation of a No-Go for the purpose of location. The No-Go can be found below the seal bore of the nipple if it is a bottom no-go nipple or at the top if it is a top-no-go nipple. An operator can place as many ‘Selective’ nipples with the same ID in the tubing string (without regard to a specific sequence) to provide more positions for setting and locking subsurface flow controls. P-R & P-RN series Nipples are used in heavy weight tubing strings.

PTP Landing Nipples offer a large bore to permit maximum flow capacity and are available to suit special metallurgy requirements based on well conditions and can be supplied with any feasible API or premium threads.

Applications

  • Blanking Plugs
  • Shear Out Subs
  • Down Hole Chokes
  • Instrument Hangers
RN PROF
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