【摘要】：酸化是油氣開(kāi)采中必不可少的增產(chǎn)措施,為了防止酸液對(duì)金屬設(shè)備及管線的腐蝕,常在酸液中加入一定量的緩蝕劑。以乙烯基三乙氧基硅烷、聚丙烯酰胺為原料合成了一種酸化用硅酸鹽緩蝕劑,討論了pH、單體配比、單體濃度、聚合物溫度、聚合時(shí)間對(duì)緩蝕效果的影響,得到最佳反應(yīng)條件:pH=13~14、m(乙烯基三乙氧基硅烷)∶m(丙烯酰胺)=1∶2、單體質(zhì)量分?jǐn)?shù)為10%、聚合溫度為55℃、聚合時(shí)間為2 h。紅外表征結(jié)果證明,合成產(chǎn)物為目標(biāo)產(chǎn)物有機(jī)硅酸鹽緩蝕劑。性能測(cè)試表明,在溫度為60℃、緩蝕劑用量為1%(質(zhì)量分?jǐn)?shù))時(shí),硅酸鹽緩蝕劑的緩蝕效率為96.41%。當(dāng)其與雙子咪唑啉季銨化物按質(zhì)量比1∶1復(fù)配時(shí),緩蝕率為99.39%。并通過(guò)掃描電鏡對(duì)碳鋼片在腐蝕實(shí)驗(yàn)前后的表面狀態(tài)做了分析。
[Abstract]:Acidification is an essential measure to increase production in oil and gas exploitation. In order to prevent the corrosion of acid to metal equipment and pipeline, a certain amount of corrosion inhibitor is often added to the acid solution. A silicate inhibitor for acidizing was synthesized from vinyl triethoxysilane and polyacrylamide. The effects of pH, monomer ratio, monomer concentration, polymer temperature and polymerization time on the corrosion inhibition were discussed. The optimum reaction conditions were obtained as follows: pH=13~14,m (vinyl triethoxysilane): m (acrylamide) = 1? 2, monomer mass fraction 10%, polymerization temperature 55 鈩，

本文編號(hào)：2430427