Kelvin Probe for through-wall detection

A Kelvin Probe for through-wall detection of internal corrosion on pressure vessels will be made. Christian Michelsen Research AS recently started a collaborative project with Statoil Petroleum AS and Gassco AS, which enables the development of the Field Kelvin Probe (FKP) - an innovative instrument for the detection of internal corrosion on offshore pressure vessels.


Kelvin Probe for through-wall detection

A self-contained and standalone FKP attached to the outside of a pressure vessels will detect corrosion by monitoring minute concentration changes of the hydrogen induced in the steel wall by internal corrosion processes. Wireless communication will allow transmission of FKP data to an onshore condition-evaluation centre.

The idea for the current project was triggered by the Innovation Challenge call, launched by Statoil in 2013, for practical solutions for cost-effective inspections of offshore pressure vessels. Main delivery, that is a field demonstrator, shall be available by the end of this project i.e. in May 2018.

Ultimately, the FKP demonstrator would serve as a platform for a FKP-based diagnostic tool for predictive maintenance of the pressure vessels.

The close cooperation with the Max Planck Institut für Eisenforschung (MPIE) is essential for the successful completion of the project. MPIE’s state-of-the-art laboratories in Düsseldorf will have a special role in the validation of the FKP measurements.