Cased Wear Joint & Riser Sealing Mandrel


  • Built-up by 0.3 m long sections
  • Lightweight
  • Handles high impact
  • Custom made for pipe and umbilical dimension
  • Adaptable for multiple umbilical configuration


  • No loose parts
  • Fast and simple installation
  • Safe and easy handling
  • No steel parts
  • Great impact properties
  • RSM: Vastly reduces leakage rate onto drill floor due to additional sealing feature


Polyethylene (PE)

  • Buoyant
  • Low friction
  • Wear resistant


The main purpose of the CWJ is to protect the umbilical and landing string when running through the rotary and during heave compensation.

The design and features of the RSM is very similar to the CWJ, however it has an additional sealing feature protecting the drill floor from hydrocarbons coming up as a result from a disconnection.