How to control Corrosion /Erosion Problems In Multiphase pipelines for oil and Gas |
by |
Liv Lunde, Arne Dustad and Srdjan Nesic. |
Abstract |
Material loss due to CO2 corrosion can be limiting factor for the use
of carbon steels in pipelines for unprocessed hydrocarbons. In many
subsea projects the pipeline costs are a considerable part of the investment
and the economical impact of improved understanding and control of the
CO2 corrosion of carbon steel is large. This report summarizes the effect
of the most important parameters on CO2 corrosion, and gives an overview
of corrosion. Fields in the Norwegian part of the North Sea are used
as examples. New and untraditional methods for significant reduction
of corrosivity in gas/condensate pipelines are briefly mentioned. The
report concludes with a discussion on how these problems may be handled
in future long distance transport lines for unprocessed hydrocarbons. |