油井管用15%Cr马氏体不锈钢的开发

15%Cr MARTENSITIC STAINLESS STEEL DEVELOPED FOR OCTG

摘要: 研究13%Cr马氏体不锈钢在含CO₂油井环境下的耐腐蚀性能的同时,开发了15%Cr马氏体不锈钢,并用该钢制造出L-80级无缝钢管。经试验,15%Cr钢具有良好的韧性,可在200℃以下含微量H₂S的CO₂环境中使用,其耐硫化氢应力腐蚀(SSC)性能与13%Cr钢相同,并比22%Cr双相不锈钢更为经济。
- 油井管 /
- 13％Cr钢 /
- 15％Cr马氏体不锈钢 /
- 开发
Abstract: While studying the anti-corrosion property of 13%Cr martensitic stainless steel under oil well having CO₂, a new 15%Cr martensitic stainless steel was developed and the L-80 grade seamless tubes of the steel were manufactured. The experiment shows that the 15%Cr steel with high toughness and with the same SSC resistance property as that of 13%Cr steel, can be employed in CO₂ environment containing small amount of H₂S under the temperature up to 200℃ and that it is more economic to use the steel than to use 22%Cr duplex stainless steel.
- OCTG /
- 13%Cr steel /
- 15%Cr martensitic stainless steel /
- development