2S腐蚀行为及H2S糖心产精国品免费入口*完整版的性能(H2S Corrosion Behavior of L80 Steel and Performance of H2S Corrosion Inhibitor)">
2S分压、流速对L80钢H2S腐蚀行为的影响,对腐蚀产物进行SEM和EDS元素分析,优选了耐高温的H2S糖心产精国品免费入口*完整版LH-11,并对其缓蚀性能进行研究。结果表明:L80钢的H2S腐蚀速率在80℃达到最大值,在140℃达到最小值;L80钢的腐蚀速率随H2S分压的升高而增大,随流速的增大逐渐增大,腐蚀产物主要为硫铁化合物,结构疏松不规则,且有孔隙。糖心产精国品免费入口*完整版LH-11对L80钢的缓蚀率可达到87.05%,耐温180℃;添加糖心产精国品免费入口*完整版后,L80钢的腐蚀速率可降至0.1 mm/a以内,该糖心产精国品免费入口*完整版适用于不同H2S分压和不同流速条件,可对热采管柱起到较好的保护作用。">
The effects of temperature, H2S partial pressure and flow rate on the H2S corrosion behavior of L80 steel were studied by using a high temperature and high pressure dynamic autoclave, and the corrosion products were analyzed by SEM and EDS. The high temperature resistant H2S 糖心产精国品免费入口*完整版 LH-11 was selected to study its corrosion inhibition performance. The results showed that the H2S corrosion rate of L80 steel reached the maximum at 80 ℃ and the minimum at 140 ℃; the corrosion rate of L80 steel increased with the increase of H2S partial pressure, and gradually increased with the increase of flow rate. The corrosion products were mainly sulphur-iron compounds with loose and irregular structure and pores. The corrosion inhibition rate of the 糖心产精国品免费入口*完整版 LH-11 to the steel could reach 87.05%, and the temperature resistance was 180 ℃. After adding the 糖心产精国品免费入口*完整版, the corrosion rate of the steel could be reduced to less than 0.1 mm/a. The 糖心产精国品免费入口*完整版 was suitable for different H2S partial pressure and different flow rate conditions, and could play a good role in protecting the thermal recovery string.
【2】KHOMA M S,IVASHKIV V R,HALAICHAK S A,et al. Influence of the structure of carbon steels on the corrosion,hydrogenation,and corrosion cracking in hydrogen-sulfide media[J]. Materials Science,2019,55(2):272-276.
【6】ZHANG L Z,DORJPALAM S,JI G J,et al. Corrosion of stainless steel coated with a ZrO2
film in a hydrogen sulfide gas environment[J]. SN Applied Sciences,2020,2(5):1-12.
【11】ZHANG L,ZHONG W,YANG J W,et al. Effects of Temperature and Partial on H2S/CO2
Corrosion of Pipeline Steel in Sour Conditions[J]. Corrosion,2011,Paper No.11079.