【摘要】：為解決某油田4 000m深井TP110-3Cr套管外腐蝕問題,研制了一種新型耐高溫鋅合金犧牲陽極。采用電化學(xué)技術(shù)對陽極材料進行了極化曲線和電流效率測試。結(jié)果表明:在80℃時,陽極極化曲線較平緩,開路電位較負(fù),無高溫"逆轉(zhuǎn)"現(xiàn)象,電流效率大于80%,腐蝕均勻,腐蝕產(chǎn)物易脫落。在模擬某油田地層水條件下,評估了新型陽極的高溫防腐蝕性能。結(jié)果表明:新型鋅合金犧牲陽極在125℃以下,可有效保護套管;在130℃時,陽極發(fā)生斷裂失效,無法繼續(xù)使用。
[Abstract]:In order to solve the external corrosion problem of TP110-3Cr casing in a 4000 m deep well, a new high temperature resistant zinc alloy sacrificial anode was developed. Polarization curves and current efficiency of anode materials were measured by electrochemical technique. The results show that at 80 鈩，

本文編號：2127179