Simplified well access, well interventions, and workover operations

Halliburton, in alliance with Optime Subsea ASA, is proudly offering the SCILS subsea controls and intervention light system, an industry first, field-proven closed-loop subsea controls unit complete with redundant subsea pumps, control modules, and a hydraulic reservoir.

Subsea Controls & Intervention Light System (SCILS)

Modular and cost-efficient subsea access device

SCILS is perfectly suited for well interventions and workover systems, providing intervention workover control (IWOC) services during initial subsea production Xmas Tree (XT) commissioning, interventions, or plug and abandonment (P&A) operations.

SCILS can be run off service vessels and rigs and can be temporarily deployed or permanently installed, without any modification or interfaces.


  • Quick mobilization and demobilization
  • Minimum of rig/vessel interfaces
  • Simple and automated SIT and deck testing
  • Adaptable to past, current, and future subsea XTs
  • Full redundant electrical controls
  • Limited topside footprint and personnel required to operate
  • Easily adaptable to customer-specific requirements
  • Built on field-proven technology platform with qualified components
  • Minimizes operations HSE risk

Less deck space


Reduction in crew size


Less umbilical subsea x-section

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