Systems for handling stabilised oil like equipment for top side oil export systems, oil transport and processing plants are subject to high level of bio-corrosion. Bio-corrosion results in extensive and costly damages for the equipment and additional losses due to the shutting down of the transport and production units for several weeks. The objective of this project is to build a database of bio-corrosion case histories on carbon steel in systems containing produced water, to design a statistical model correlating physical and chemical parameters and to create a basis for modelling the prediction of MIC in produced water, as e.g. extracted from the hydrocarbon stream. The intention is to develop the data base to an expertise tool for MIC that can be used for anticipating and preventing bio-corrosion. The work is following the methodology "From the field, through the lab, to the field". The work starts with an extensive literature study for collection of published MIC failures in relevant environments. Additionally, close interactions will be held with field operators within Statoil, M-I SWACO and other oil & gas related companies for collection of MIC failures from the fields. In order to have statistical data existing field and literature data will be complemented with field and laboratory studies both within and outside the Marie Curie BIOCOR ITN. A schematic view of the procedure for the work is given below.