Individual Project 6 << back

Overview

Industrial sector: the oil & gas industry

Research sub-programme: systems for handling stabilised oil

Host partner: KIMAB - Stockholm, Sweden

Associated partners involved: Statoil and M-I SWACO

Recruited researcher: Iulian COMANESCU

Scientist-in-charge: Eva JOHANSSON


Description

Title: MIC database and global model

Field problem addressed:

Systems for handling stabilised oil like equipment for top side oil export systems, oil transport and processing plants, mostly made of carbon steel in Northern Europe, are subject to high levels of bio-corrosion. For example carbon steel risers have been found with corrosion deposits so thick that they could not be treated by corrosion inhibitors. Bio-corrosion results in extensive and costly damages for the equipment and additional production losses due to the shutting down of the transport and production units for several weeks. For these purposes it is necessary to develop more knowledge about bio-corrosion formation, monitoring and mitigation.
The project will focus on systems with low water cut.



Objectives:


There is a need for documentation, collection and integration of data related to bio-corrosion from industrial cases and laboratory studies. The objective of the IP 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 modeling the prediction of MIC in produced water, as e.g. extracted from the hydrocarbon stream.
The data base will contain a collection of corrosion failures both from field and literature studies. Corrosion will be quantified and environmental conditions characterized. 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 data base will also contain relevant parameters for statistical modeling.