The development of novel steels with superior resistance to CO2 corrosion using metallurgical conditioning is presented in this paper. It introduces the outcome of an extensive and systematic study looking at the influence of a wide range of alloying elements on the CO2 corrosion behaviour of low carbon steels. Microalloying elements have successfully been used to substantially improve CO2 corrosion resistance of these steels containing small amounts of chromium. The paper presents details of alloy compositions, mechanical treatments and corrosion
testing. The outcome is a major development and influential in the production of steels with superior corrosion resistance for oilfield applications.
Keywords; Carbon and Low Alloy Steels, CO2 Corrosion, Downhole, Metallurgical Conditioning, Microalloying Elements, Oilfwld Applications, Pipelines.