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Environmental cracking

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Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7157
... with such a development in this application is an understanding of the environmental cracking behavior of Alloy UNS S42028 when exposed to clear brine fluids. This is particularly important during the completion phase of HPHT wells when medium density clear brine fluids are required. This paper will detail...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5851
... several wells determined that the L80 tubing failed from environmental cracking initiating in the body on the annular (O.D.) side of the tubing/casing. The laboratory testing also showed that the failed tubing and casing met compositional and mechanical requirements of API 5CT L80 and NACE MR0175/ISO15156...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2308
... ABSTRACT Environmental cracking susceptibility of low alloy steel oil country tubular goods (OCTG) (95 ksi & 110 ksi SMYS proprietary sour grades and 110 ksi SMYS non sour grade) was investigated in high H 2 S partial pressures using 4 point bent beam tests in autoclaves. The H 2 S partial...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2790
... discusses the performance of these materials at one of the largest gas processing plants under a different operating envelop and the integrity concerns due to different types of environmental cracking challenges. Furthermore, this paper provides an update on the inspection challenges associated...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1593
... corrosion resistant alloys. For many deep wells, martensitic and duplex stainless steels are the materials of choice due to their combination of corrosion resistance, strength and cost. In most cases, susceptibility to environmental cracking, e.g. sulfide stress cracking (SSC) and stress corrosion cracking...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1277
...The Effect of Alloying Elements on Environmental Cracking Resistance of Stainless Steels in CO2 Environments with and without Small Amount of H2S Hideki Takabe Sumitomo Metal Industries, Ltd. 1850 Minato Wakayama city, 640-8555 Japan Hisashi Amaya Sumitomo Metal Industries, Ltd. 1850 Minato...
Proceedings Papers

Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11103
... concentration, pH, temperature and H2S partial pressure. These parameters influence both localized corrosion resistance and Stress Corrosion Cracking (SCC) susceptibility. The present work has been aimed at evaluating the SCC resistance of Alloy UNS S41426 grade 110 ksi (tubular). The following environmental...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10314
... steel ksi steel grade fpb specimen small amount Corrosion Management cacl 2 stainless steel application limit steel grade partial pressure cross Section analysis SCC Resistance 2010 Environmental Cracking Performance of Super Martensitic Stainless Steels 13-5-2 (grades 110ksi and 125ksi...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10299
... INTRODUCTION ABSTRACT Environmentally assisted crack (EAC) growth mechanisms affecting the external surface of API X-60 pipeline steel has been investigated. Low frequency cyclic tests at 4.63x10 -4 Hz were conducted in simulated groundwater (NS4 solution) under near neutral (pH ˜7...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09308
... or internal lining and stainless steel, depending on the operating envelope. This paper discusses the performance of these materials under different operating envelopes and the integrity concerns due to environmental cracking focusing on case histories related to hydrogen induced cracking, hydrogen blisters...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09299
... and environmental cracking test results for duplex stainless steels and austenitic stainless steels with residual stresses from heat exchanger fabrication operations including high surface area tube forming and hair-pin bend formation. The ASTM E837, ASTM G36 and NACE TM0177 methods are used to judge the risk...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09080
..., Houston, Texas 777084. The material presented and the views expressed in this paper are solely those of the author(s) and are not necessarily endorsed by the Association. Printed in the U.S.A. CASE-HISTORY OF ENVIRONMENTAL CRACKING FAILURES WITH ALLOY K-500 FOR DOWNHOLE COMPLETION TOOLS Karthik Krishnan...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07RTS8
... oilfield chemistry well integrity high temperature water crack growth rate growth rate strain rate crack tip corrosion potential nuclear power system environmental degradation potential gradient crack chemistry Andresen gradient ABSTRACT In the absence of definitive data, mechanistic...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07097
... ABSTRACT The objective of the laboratory experiments described in this paper was to examine how exposure to a combination of H 2 S and CO 2 would impact on environmental cracking, hydrogen charging and loss of ductility of CRAs and Alloy 718 immersed in calcium bromide brines and high density...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07106
... to meet the same corrosion and environmental cracking performance as the tubing. The initial program attempted to qualify alloy UNS S41426 (grade 80ksi). Mechanical property analysis and expansion trials (ID ratio of 19.8%) concluded this alloy to be unsuitable for the required expansion ratio...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07480
... associated with equipment used in the CPI is environmentally assisted cracking (EAC). EAC is a general term that includes events such as stress corrosion cracking (SCC), hydrogen embrittlement (HE), hydrogen assisted cracking (HAC), sulfide stress cracking (SSC), liquid metal embrittlement (LME), corrosion...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06152
... of expandability. This work examined the corrosion and environmental cracking performance of downhole expanded CRA?s tubulars processed through a particular set of preparation and expansion steps that closely simulated those used by one service company. Expandable products have no well established or agreed...
Proceedings Papers

Paper presented at the SPE High Pressure/High Temperature Sour Well Design Applied Technology Workshop, May 17–19, 2005
Paper Number: SPE-97593-MS
... Abstract In high pressure high temperature (HPHT) gas condensate wells the use of high density brines is required to ensure safe well operations during both well drilling and completion phases. This investigation studied the corrosion and environmental cracking behaviour of several high...
Proceedings Papers

Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04113
..., with the claim that it is both environmentally friendly and none corrosive. This works presents the results of both corrosion and stress corrosion cracking tests performed with caesium formate brine in simulated HPHT conditionsThe materials tested were low alloy steel grades P-110 and C-110, five...
Proceedings Papers

Paper presented at the Corrosion97, March 9–14, 1997
Paper Number: NACE-97020
... ABSTRACT Environmental cracking of high strength casing in mud has been experienced but its mechanism has not been clarified. Degradation of lignate mud with time and its effects on steel in the mud were experimentally investigated in a laboratory. Sulfide concentration of mud increases and pH...

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