CARBON DIOXIDE CORROSION OF OILFIELD CASING AND TUBULAR GOODS IN MEDIA SATURATED WITH H2S AND Cl

Abstract

: Carbon dioxide corrosion is one of the most common reasons for the failure of oil-production equipment. This issue is very urgent for the Russian Federation where the carbon dioxide content is high in the oilfield medium of the most production fields. The paper deals with the obtaining of information on the basic issues of development of tube steels resistant to the carbon dioxide corrosion: the type and the level of alloying of steels reducing carbon dioxide corrosion lower than 0.2 mm per year; the influence of high content of corrosive H 2 S and Cl - components in the carbon dioxide medium on the mecha-nism and kinetics of corrosion failure. To get this information, the authors carried out pilot tests maximally proximal to operating conditions.