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Sour Service Limit Of 17% Cr Stainless Steels Grades For OCTG

Product Number: 51321-16637-SG
Author: Toshiyuki SUNABA/ Susumu HIRANO/ Thiago MESQUITA/ FranceHerve MARCHEBOIS/ Thierry CASSAGNE
Publication Date: 2021
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Recently, the use of 17% Cr seamless steel tubing has been a cost-effective solution for preventing high pressure and high temperature (HP/HT) CO2 corrosion environment with small amount of H2S. This paper focuses on the sulfide stress cracking (SSC) results of 17% Cr stainless steels in simulated conditions for HP/HT gas wells. In the frame of a qualification program, NACEa Standard Tensile Test, Method A was adopted in accordance with NACE TM0177. The influence of partial pressure of H2S was investigated at condensed and formation water conditions where SSC is likely to occur. In addition, a previous work on the localized corrosion and the stress corrosion cracking behavior of those grade is also discussed in this paper. The results were summarized in a sour service domain map and compared with previous published data. The results showed the applicability of this alloy for selected gas well conditions. .

Key words: 17%Cr, OCTG, CO2, H2S, SSC

Recently, the use of 17% Cr seamless steel tubing has been a cost-effective solution for preventing high pressure and high temperature (HP/HT) CO2 corrosion environment with small amount of H2S. This paper focuses on the sulfide stress cracking (SSC) results of 17% Cr stainless steels in simulated conditions for HP/HT gas wells. In the frame of a qualification program, NACEa Standard Tensile Test, Method A was adopted in accordance with NACE TM0177. The influence of partial pressure of H2S was investigated at condensed and formation water conditions where SSC is likely to occur. In addition, a previous work on the localized corrosion and the stress corrosion cracking behavior of those grade is also discussed in this paper. The results were summarized in a sour service domain map and compared with previous published data. The results showed the applicability of this alloy for selected gas well conditions. .

Key words: 17%Cr, OCTG, CO2, H2S, SSC

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Picture for 08115 Development of a C125 High Strength Low Alloy Steel for OCTG: SSC Mapping in Slightly Sour Environment
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08115 Development of a C125 High Strength Low Alloy Steel for OCTG: SSC Mapping in Slightly Sour Environment

Product Number: 51300-08115-SG
ISBN: 08115 2008 CP
Author: Hervé Marchebois / Michel Piette / Laurent Ladeuille / David Senegas-Rouviere /Christoph Bosch / Josef Pleschiutschnig / Jean Leyer / Bertine Orlans-Joliet / Etienne Lepine / Frédéric Legay / Cédric Linne / Alfredo Figueiredo
Publication Date: 2008
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