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10307 Sulfide Stress Cracking (SSC) Resistance Limits for a 125KSI Grade High Strength Low Alloy Steel OCTG Developed for Mildly Sour Service

Picture for 10307 Sulfide Stress Cracking Resistance Limit for a 125KSI Grade High Strength Low Alloy Steel OCTG
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Product Number: 51300-10307-SG
ISBN: 10307 2010 CP
Author: Tomohiko Omura, Taro Ohe, Toshiharu Abe, Masakatsu Ueda, Perry Ian Nice and John W. Martin
Publication Date: 2010
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A 125 ksi grade high strength low alloy steel OCTG has been developed for mildly sour environments. This has been used for a “Fit For Purpose” production casing material in high pressure / high temperature wells.

In this paper, the prevention of oxygen ingress and pH stabilization during testing have been investigated for obtaining accurate SSC test results by NACE TM0177-2005 Method A in mildly sour conditions. Testing techniques have been developed in which the test equipment is contained within a nitrogen chamber and the test pH is stabilized by using an acetic acid / sodium acetate buffering system.

The SSC resistance of 125 ksi grade high strength low alloy steel has been evaluated using the above mentioned testing techniques under various H2S partial pressure and pH conditions. The SSC resistance limits are discussed in the relationship between H2S partial pressure and pH.

Keywords: sulfide stress cracking, low alloy steel OCTG, hydrogen sulfide, hydrogen
A 125 ksi grade high strength low alloy steel OCTG has been developed for mildly sour environments. This has been used for a “Fit For Purpose” production casing material in high pressure / high temperature wells.

In this paper, the prevention of oxygen ingress and pH stabilization during testing have been investigated for obtaining accurate SSC test results by NACE TM0177-2005 Method A in mildly sour conditions. Testing techniques have been developed in which the test equipment is contained within a nitrogen chamber and the test pH is stabilized by using an acetic acid / sodium acetate buffering system.

The SSC resistance of 125 ksi grade high strength low alloy steel has been evaluated using the above mentioned testing techniques under various H2S partial pressure and pH conditions. The SSC resistance limits are discussed in the relationship between H2S partial pressure and pH.

Keywords: sulfide stress cracking, low alloy steel OCTG, hydrogen sulfide, hydrogen
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Picture for 09102 SSC Resistance of High Strength Low Alloy Steel OCTG in High Pressure H2S Environments
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09102 SSC Resistance of High Strength Low Alloy Steel OCTG in High Pressure H2S Environments

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Author: Kenji Kobayashi, Tomohiko Omura and Masakatsu Ueda
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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
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Today a need for a C125 Sulfide Stress Cracking (SSC) resistant material exists with the development of High Pressure/High Temperature (HP/HT) oil and gas fields.  This paper focuses on the SS resistance of industrial heats.
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10314 Environmental Cracking performance of Super Martensitic Stainless Steels "13-5-2" (Grades 110KSI and 125KSI) for Tubing Applications in High Chloride Reservoir Fluids Containing H2S/CO2

Product Number: 51300-10314-SG
ISBN: 10314 2010 CP
Author: Roberto Morana, Eugenio Lo Piccolo, Lucrezia Scoppio and Perry Ian Nice
Publication Date: 2010
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