کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
618162 | 1455019 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Case study on erosion-corrosion degradation of pipework located on an offshore oil and gas facility
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Various carbon steel sections of pipework removed from an offshore facility were examined and found to have experienced exceptionally high wall thickness losses as a result of internal degradation. This prompted a case study to determine the mechanisms of degradation which had occurred and to ascertain the reasons why the implementation of corrosion inhibitor provided little protection to certain areas of the pipework. Initially, information for the pipework system was collated relating to the fluid chemistry, sand content, flow rate, temperature, inhibitor usage and pipe geometry. Computational fluid dynamics (CFD) modeling implemented for various regions of the pipework provided an insight into the flow behavior and expected local fluid velocities present. A metallurgical analysis for the pipework was performed, which included compositional and microstructural analysis, as well as hardness measurements across the welded regions of the pipework. Jet impingement tests were conducted, simulating field conditions in order to quantify the degradation rate. Experimental results were compared with field data to assist in determining the degradation mechanism. The effect of the corrosion inhibitors used on the pipework was also examined and degradation mechanisms were discussed based upon results obtained from micro-structural studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 271, Issues 9â10, 29 July 2011, Pages 1295-1301
Journal: Wear - Volume 271, Issues 9â10, 29 July 2011, Pages 1295-1301
نویسندگان
Xinming Hu, Richard Barker, Anne Neville, Abinesh Gnanavelu,