Casing and Linepipe steels for sour service applications

CIM Bulletin, Vol. 91, No. 1021, 1998

L.E. Collins and R. Kruger
IPSCO Inc., Regina Saskatchewan

In western Canada, many new wells contain a significant fraction of H2S. As well, many older wells become increasingly sour over their operating lifetime. For these reasons, there has been increased demand for linepipe and casing for sour service applications in recent years. This paper will review the metallurgical factors which must be cosidered in designing steels for such applications. IPCOÕs development of linepipe and casing, and experience in fabricating products to meet test standards specified for sour service applications wiil be sumarized.
Mots Clés: Metallurgy, Sour service applications, Steel