通化硕抠家具有限公司

    高級檢索

    CPE機組上CB110-5Cr抗CO2腐蝕油套管的研發(fā)

    R&D of CB110-5Cr Anti-CO2Corrosion Oil Casing with CPE Mill

    • 摘要: 介紹了CB110-5Cr抗CO2腐蝕油套管的化學(xué)成分及其設(shè)計思路。通過對樣管的試制及其力學(xué)性能的測評，確定CB110-5Cr油套管的淬火、回火溫度。通過對比CB110-5Cr和P110鋼級樣管的極化曲線和高溫高壓釜試驗，評定CB110-5Cr耐腐蝕性能。試驗結(jié)果表明：CB110-5Cr油套管的力學(xué)性能滿足API Spec 5CT—2011中P110鋼級的要求，且具有較高的沖擊韌性；中低溫時，隨著CO2分壓的增加，CB110-5Cr油套管的抗腐蝕速率增加，其抗腐蝕性能明顯優(yōu)于P110鋼級油套管；當溫度升到90℃以上時，P110油套管的抗腐蝕性能優(yōu)于CB110-5Cr油套管。

       

      Abstract: Elaborated in the essay are the chemical composition of CB110-5Cr anti-CO2corrosion oil casing，and the design idea thereof.Based on the trial manufacture of the sample pipe and the measurement and evaluation of its mechanical properties，the temperatures as required for quenching and tempering process for the CB110-5Cr oil casing are determined.Through comparison the polarization curves and the autoclave test result of the said sample pipe with those of the P110 sample pipe，the former’s corrosion resistance is evaluated.The test results reveal that the mechanical properties of the CB110-5Cr anti-CO2corrosion oil casing are in full compliance with the requirements for P110 grade products as specified under API Spec.5CT—2011，and that the impact toughness is high，and at medium or low temperature，along with increasing of the CO2partial pressure the corrosion rate of the CB110-5Cr oil casing is going up，showing that its corrosion resistance is obviously much better than that of the P110 oil casing. However the results also show that on the other hand，in case of the temperature above 90℃，the corrosion resistance of the P110 oil casing is better than that of the CB110-5Cr oil casing.

       

      • HTML全文

    /

    返回文章
    返回