Your Partner in NDT

GUL Subsea

Subsea Screening Rings

With the experience gained from many inspections in both the North Sea and the Gulf of Mexico, GUL’s Sub-Sea GWT equipment has evolved into a reliable modular system. GUL Sub-Sea rings are easily adjusted to fit different pipe sizes and are available for both ROV or diver deployment.

The advantages of using the Sub-Sea rings include:

  • Screening unpiggable sections of line for internal or external corrosion/erosion.
  • Screening under weight coat and insulation with minimal cleaning and excavation.
  • The on-site analysis allows the ROV to perform follow-up indications.
ROV Deployed

A Subsea G4mini™ is mounted on the ROV. A hydraulic connection is used for opening and closing the ring. The test is carried out from the ROV control room

Diver Deployed

The test is controlled via an umbilical from a topside interface box to the Wavemaker® instrument. The rings are installed on a clean section of pipe by 1 or 2 divers using a mechanical clamping mechanism.

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