IWOCS Nabelschnurkabel

ZTT is equipped with full-fledged manufacturing lines for IWOCS umbilical cables, covering electrical signal cables, optical-fiber elements, cable cores assembly, aramid fiber reinforced braiding and sheath extrusion processes.
Custom-engineered functional components can be provided to withstand harsh subsea service conditions.

  • ZTT has over 10-year manufacturing experience in umbilical cables integrated with thermoplastic hoses.
  • We deliver complete IWOCS system solutions, covering winches, umbilicals, terminations, sheaves and HPU units.
  • Capitalizing on the Group’s diversified product portfolio, we provide custom-engineered umbilical cables featuring high durability for multi-scenario and multi-functional offshore applications.

To date, we have delivered IWOCS systems for subsea production operations covering water depths of 1500 m, 700 m, 200 m and 100 m.
These systems have been successfully deployed for subsea Christmas‑tree commissioning testing, well workover, subsea intervention, and internal fluid replacement within umbilical hose assemblies.

  • Subsea Christmas Tree installation and pre-commissioning
  • Subsea well completion, deepwater well intervention and workover
  • Subsea well testing and flowback operation
  • Well plugging & abandonment (P&A)
  • Riserless well intervention (RLWI)

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