Materials Performance

DEC 2018

Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.

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53 MATERIALS PERFORMANCE: VOL. 57, NO. 12 DECEMBER 2018 7 K. Videm, A. Dugstad, "Corrosion of Mild Steel in an Aqueous Carbon Dioxide Environment. Part 2: Scale Formation," MP 28, 4 (1989): pp. 46-50. 8 G. Hends, A. Turnbull, "Novel Multi-Electrode Test Method for Evaluating Inhibitor of Under-deposit Corrosion—Part 1: Sweet Conditions," Corrosion 66, 4 (2010): pp. 046001-1-046001-10. 9 G. Hends, A. Turnbull, "Novel Multi-Electrode Test Method for Evaluating Inhibitor of Under-deposit Corrosion—Part 2: Sour Conditions," Corrosion 66, 5 (2010): pp. 046002-1-046002-6. 10 W.H. Durnie, M.A. Gough, J.A.M. de Reus, "Develop- ment of Corrosion Inhibitors to Address Under- Deposit Corrosion in O il and Gas Production Syst ems," C O RRO SIO N 2005, pap er no. 05290 (Houston, TX: NACE, 2005). 11 J.R. Vera, D. Daniels, M.H. Achour, "Under Deposit Corrosion (UDC) in Oil and Gas Industry : A Review of Mechanisms, Testing and Mitigation," CORRO- SION 2012, paper no. 0001379 (Houston, TX: NACE, 2012). NAYEF M. ALANAZI is a science specialist at Saudi Aramco, Research & Development Center, Dhahran, Saudi Arabia, email: nayef.anazi@ aramco.com. He has more than 18 years of profes- sional experience in materials and corrosion. His interests are sweet and sour corrosion in the oil and gas industry. He has a Ph.D. in material sci- ence and engineering from Sheffield University, United Kingdom, and is a member of NACE. A.M. EL-SERIK is a research science consultant at Saudi Aramco, email: abdelmounam.sherik@ aramco.com. He focuses on corrosion manage- ment in crude and gas handling and transmission facilities. He has advanced pipeline corrosion research in black powder, hydrogen-induced cracking, and sulfur solubility and deposition. He is regularly invited as a keynote speaker on black powder. He has a Ph.D. in materials and metal- lurgical engineering, has published 93 peer- reviewed and conference papers, holds seven patents, and is the editor of the book, Trends in Oil and Gas Corrosion Research and Technologies: Production & Transmission (Elsevier, 2017). He is a member of NACE. FIGURE 4 Average maximum localized corrosion rates measured against immersion time under no deposit and ˜eld sludge deposit. The synthesis brine was purged continuously with H 2 S/CO 2 gas at 48 °C. FIGURE 5 Average maximum localized depth measured against immersion time under no deposit and ˜eld sludge deposit. The synthesis brine was purged continuously with H 2 S/CO 2 gas at 48 °C. FIGURE 6 SEM images on corroded surface of coupons inserted underneath no deposit, sand deposit, and ˜eld deposit. Editor's note: Learn more about underdeposit corrosion of carbon steel in sour environments in this quarterly special feature, "The Science Behind It." Now that you've read the MP article, explore the science behind the corrosion problem, which is presented in these related CORROSION articles: N.M. Alanazi, et al., "Corrosion of Pipeline Steel X-60 Under Field-Collected Sludge Deposit in a Simu- lated Sour Environment," Corrosion 71, 3 (2015): pp. 305-315. http://corrosionjournal.org/doi/ abs/10.5006/1237. L. Yang, et al., "Threshold Chloride Levels for Local- ized Carbon Steel Corrosion in Simulated Con- crete Pore Solutions Using Coupled Multielec- trode Array Sensors," Corrosion 70, 8 (2014): pp. 8 5 0 - 8 5 7 . h ttp : / / c o r ro si o nj o u r n a l . o rg / d o i / abs/10.5006/0830. G. Hinds, et al., "Novel Multi-Electrode Test Method for Evaluating Inhibition of Underdeposit Corro- sion—Part 2: Sour Conditions," Corrosion 66, 5 (2010): pp. 056002-01 to 056002-6. http:// corrosionjournal.org/doi/abs/10.5006/1.3430466. N.D. Budiansky, et al., "Use of Coupled Multi-Elec- trode Arrays to Advance the Understanding of Selected Corrosion Phenomena," Corrosion 63, 6 (2007): pp. 537-554. http://corrosionjournal.org/ doi/abs/10.5006/1.3278405. L. Yang, et al., "An In-Situ Galvanically Coupled Multi- electrode Array Sensor for Localized Corrosion," Corrosion 58, 12 (2002): pp. 1,004-1,014. http:// c o r r o s i o n j o u r n a l . o r g / d o i / a b s / 1 0 . 5 0 0 6 / 1.3280789. Sour Environment Underdeposit Corrosion Behavior of a Carbon Steel

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