FORCE Technology Norway & BAC Corrosion Control rationalise retrofit and life extension of cathodic protection systems.

5 October 2019
Christian Thomsen, CEO BAC Corrosion Control and Svenn Magne Wigen, Sales Manager FORCE Technology shake hands - kicking off a joint retrofit delivery in Europe.

FORCE Technology Norway is a globally renowned service provider within corrosion control, designing new cathodic protection (CP) designs and life extension systems with computer modelling since the mid-eighties. Danish BAC Corrosion Control, with subsidiary Impalloy Ltd in United Kingdom, is one of the largest suppliers of galvanic anodes in Europe and to the offshore energy industry.

The companies have now joined forces and signed a collaboration agreement within cathodic protection (CP) retrofit and life extension of subsea offshore and inshore structures.

Using our combined experience in cathodic protection, corrosion control and structural design, we have created a new anode sled system. We`ve designed a few standardised solutions that can be used for any retrofit or repair that can be covered by remote anode sleds, providing a solution that is significantly more time and cost efficient. It eliminates costly engineering and design, as all steel work design is documented for a few anode sled frames; these fit several standard galvanic anode dimensions so that we can optimise in terms of currents and weight.

'We are very pleased. This co-operation is a spot-on match,' says Svenn Magne Wigen, Sales Manager at FORCE Technology Norway. The first paper on optimised CP retrofit design with modelling based on Field Gradient data from the CPPR (Cathodic Protection Pipeline Reader) sensor was publisehd in NACE Corrosion90 in 1990. In recent years, the field gradient sensor has been redeveloped and deployed as FiGS® CP survey, proving CP data that substantially optimises retrofit requirements, which reduces costs significantly.

'At BAC, we have modified our facilities to accommodate fabrication of CP retrofit systems. It is certainly efficient to build the steel frames just next to the Aluminium furnaces, grit blasting and painting facilities,' says Christian Thomsen, CEO at BAC Corrosion Control.

We optimise costs by looking at all phases, from fabrication, logistics, vessel mobilisation and installation. We are also well into development of Impressed Current CP systems that will be quite standardised as well; this is first and foremost for retrofit purposes for oil and gas as well as new installs for offshore wind, says Svenn Magne Wigen.