高效率洗井液体系的合成研究

Gao Naixu, Wang Runzhe,Zhou Yiqing,Guo Keyou, Zhang Yingjie

Modern Chemical Research(2018)

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Abstract
油井热洗是油田开发中修井作业前维护油井正常生产的重要措施.本文以油田生产污染防控的"源头控制"为原则,保证原油不落地,采用加药洗井的方式,将井筒生产管柱作为防控起点,利用表面活性剂的独特性能,研发了新型洗井液体系,可有效降低现场配药温度,该体系在65℃条件下洗油效率达到90%以上,药剂浓度在0.6%时油水界面张力降至10-4MN/m.有效避免油污在修井作业时从井筒携带出井口,造成地面及环境的污染.
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