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三元复合驱后油井清防结垢方法及应用

Xinjiang Oil & Gas(2016)

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Abstract
为解决三元复合驱后油井垢问题,厘清三元复合驱后油井结垢的机理及垢的成分,研究发现了微量硒化钠“共轭”咪唑啉抑制无机酸腐蚀金属的规律,发明了油井清防垢剂的配方和防止方法,室内评价表明:清垢剂加量20~30mg/L时,清垢率大于60%,防垢率大于95%;现场应用后,不仅解决了垢卡泵、井筒管杆的结垢问题,而且节约油井能耗.为其他油田解决同类问题提供了可借鉴的技术思路.
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