Digital Repository, Convegno IGF XIV Trento 1998

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AN OVERVIEW OF CORROSION RESISTANT ALLOY STEEL SELECTION AND REQUIREMENTS FOR OIL AND GAS INDUSTRY
S. Cerrutti

Last modified: 2013-10-28

Abstract


The use of Corrosion Resistant Alloy ( CRA ) in oilfield application has grown in the past years and continues to
grow as world-wide search is turning to deeper reservoir.
Despite the fact that CRA are much expensive related to carbon steel, in many cases may provide an attractive
alternative to conventional steel used in combination with chemical corrosion inhibitor.
The lack of recognised engineering standard and the relatively manufacturers short experience are the major concerns
during material procurement and subsequent manufacturing. This paper discusses requirements and procedures to
reduce risks of malfunctions and/or failures of such materials. Tube-making are briefly described ; material selection
process for corrosive wells is outlined dealing principally with produced fluids containing hydrogen sulphide and
carbon dioxide. Finally an indication is given on some operational experiences with these alloys.

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