Corrosion testing in superheated geothermal steam in Iceland

被引：31
|
作者：
Karlsdottir, S. N. [1 ]
Ragnarsdottir, K. R. [2 ]
Thorbjornsson, I. O. [2 ]
Einarsson, A.
机构：
[1] Univ Iceland, Dept Ind Engn Mech Engn & Comp Sci, IS-107 Reykjavik, Iceland
[2] Innovat Ctr Iceland, IS-112 Reykjavik, Iceland
来源：
GEOTHERMICS | 2015年 / 53卷
关键词：
Corrosion; Stainless steel; Carbon steel; Weight loss measurements; SCC testing; Geothermal superheated steam; Hydrogen sulfide; Hydrogen chloride; IDDP-1; well; Iceland; FLUIDS; KRAFLA; WELL;
D O I：
10.1016/j.geothermics.2014.06.007
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Corrosion testing was conducted in a superheated geothermal steam from the IDDP-1 well in Iceland at 360 degrees C for 113 days. Severe silica scaling occurred in the test. The average corrosion rate was extremely low; less than 0.1mm/year for all the metals tested which can be explained by the combined protective effect of the silica and the high superheat in the steam preventing any condensation. Despite the low average corrosion rate, the microstructural analysis show that even the most corrosion resistant materials tested, such as UNS N06625 and titanium UNS R52400 show localized corrosion damage after the test. Only the low alloy stainless steels UNS S30403, UNS 31603 and UNS 31803 showed evidence of Stress Corrosion Cracking. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：281 / 290
页数：10
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