Adaptive passive heave compensator in action

Adaptive passive heave compensation

Your complete solution for subsea installations. Our advanced heave compensators provide unbeatable performance throughout the entire operation from topside to subsea.

In general

We have taken the limitations of standard passive heave compensation and developed state-of-the art technology for marine operations.

Our newest PHC units have an unbeatable interactive control system. We have transferred our knowledge about how PHC should work at different stages of marine operations and given the unit the capability to adapt to various environments. The units are just as robust and easy to install as standard PHC units. Thet offer excellent performance for both topside and subsea applications – targeting all dynamic challenges with one single unit.


Selected features:

Topside and subsea mode

Our advanced mechanical design and control system enables the unit to be preset with several combinations of gas spring and hydraulic damping.

Settings can be changed automatically or manually by tablet (topside) or ROV (subsea).

Shock absorption

Safe deployment through the splash zone:

Overload protection with option for subsea adjustment

Subsea resonance avoidance

Resonance occurs when the natural period of the lifting system is equal to the surrounding wave period. It is difficult to estimate the exact water depth at which these periods will converge

Landing speed reduction

Operational requirements when installing various subsea structures normally include a maximum value for landing velocity. It is essential that these requirements are met. Safelink adaptive PHC solutions will increase the weather window and reduce down time of subsea installations.

Subsea retrieval with option for subsea adjustment

Subsea retrieval (e.g suction pile retrieval)

Pull-out forces can be difficult to estimate and we often see that these operations require overload protection to deal with deviations. The inclusion of our adaptive PHC solution will enable the option to:

Recorded data for post-processing

Onboard computer data can be retrieved after lift

Did we mention that you only need one Safelink unit to utilise all available functionality and solve both the topside and subsea challenges of your operation?