Comparative study on corrosion rates and lifetime estimation of L80-13Cr andK55 tubing in petroleum production

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อธิวัฒน์ เกษสุขมาโนซ
ผศ.ดร.อัฆพรรค์ วรรณโกมล

Abstract

The objective of this study was to the corrosion rate (CR) of steel tubing L80-13Cr and K55 according to the American Petroleum Institute (API) 5CT, in the process of drilling and production in the petroleum industry. เท this research a study using electrochemical method. Cause by water in the reservoir source separate from the oil layer in horizontal well under room temperature, atmospheric pressure and without flow rate, studied the CR of different surface roughness with the preparation of the specimen surface with a number of sandpaper (Sic) is 1200 and 600. From the experiment, the CR of the steel tubing L80-13Cr at surface preparation by 1200 and 600 (Sic) the CR is 0.0376 and 0.0475 mm/year, respectively. And the corrosion rate of the steel tubing K55 at surface preparation by 1200 and 600 (Sic) the CR is 0.0138 and


0169.mm/year, respectively. Thus conclude that the steel tubing L80-13Cr is behaving better corrosion resistance than. K55 steel tubing. As a result, because L80-13Cr has chromium alloys are the corrosion resistant alloys. And when considering the surface roughness. The CR in the 600 (Sic) that is higher than the CR in 1200.

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เกษสุขมาโนซ อ., & วรรณโกมล ผ. (2016). Comparative study on corrosion rates and lifetime estimation of L80-13Cr andK55 tubing in petroleum production. Journal of Energy and Environment Technology of Graduate School Siam Technology College, 3(2), 69–77. Retrieved from https://ph01.tci-thaijo.org/index.php/JEET/article/view/179571
Section
Research Article

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