| 江汉油田废弃油基钻井液处理 |
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| 作者姓名： | 胡友林 乌效鸣 |
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| 作者单位： | 中国地质大学(武汉)工程学院;长江大学石油工程学院 |
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| 基金项目： | 国家“十二五”重大科技专项(2011ZX05075-003) |
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| 摘 要： | 根据江汉油田废弃油基钻井液特点,采用化学破乳法处理该废弃油基钻井液,在废弃油基钻井液中加入破乳剂、絮凝剂和混凝剂.结果表明:油回收率达到94.2%,芬顿氧化处理后的废水达到《污水综合排放标准》(GB 8978—1996)二级标准,COD去除率达到97.35%,色度去除率达到95.83%;经过固化剂固化96h后,泥渣固化物紧密度达到Ⅳ级,固化物浸出液达到《污水综合排放标准》(GB 8978—1996)二级标准,能够实现江汉油田废弃油基钻井液无害化处理.
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| 关 键 词： | 废弃油基钻井液 化学破乳 芬顿氧化 固化 江汉油田 |
Treatment of waste oil-based drilling fluid in Jianghan oilfield |
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| Authors: | HU Youlin WU Xiaoming |
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| Institution: | 1(1.School of Engineering,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China;2.College of Petroleum Engineering,Yangtze University,Jingzhou,Hubei 434023,China) |
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| Abstract: | The direct discharge of waste oil-based drilling fluid in Jianghan oilfield will certainly lead to serious pollution of ecological environment because it contains much pollutant.According to the characteristics of waste oil-based drilling fluid in Jianghan oilfield,the waste oil-based drilling fluid is treated with chemical demulsification,demulsifier,coagulant and flocculant are to be added into waste oil-based drilling fluid.The results show that the oil recovery rate was 94.2%,the waste water reachedⅡ-class criteria specified in Integrated Wastewater Discharge Standard(GB 8978-1996) after Fenton oxidation treatment,the removal rate of COD was 97.35%and the removal rate of chroma was 95.83%.After curing 96hours,the tightness of cured resin reached Ⅳ-class,the leaching solution of cured resin reachedⅡ-class criteria specified in Integrated Wastewater Discharge Standard(GB 8978-1996),it could realize the hazard-free treatment of waste oil-based drilling fluid in Jianghan oilfield |
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| Keywords: | waste oil-based drilling fluid chemical demulsification fenton oxidation curing Jianghan oilfield |
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