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气田污水处理回注系统腐蚀机理与防护对策研究
长庆油田分公司
科技攻关项目
汇报材料
气田污水处理系统腐蚀机理
与防护对策研究
2007年1月
气田污水处理系统腐蚀机理与防护对策研究
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校对：
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2007年1月 目 录·······················································································································1 第章 靖边气田污水·················································2 1 靖边气田回注污水的处理工艺及现状···························································2 1.1 净化厂回注污水的处理工艺及现状··························································2 1.2 北二区、南二区回注污水的处理工艺及现状············································3 2 污水的处理系统存在的主要故障···································································4 2.1 污水处理和回注系统存在严重的腐蚀现象··············································4 2.2 污水处理和回注系统存在严重的结垢现象··············································6 2.3 污水中微生物的大量繁殖··········································································6 2.4 污水处理系统出水水质不合格··································································6 3 小结···················································································································6 第章 气田回注污水的腐蚀·····················8 1 气田采气工艺特点及污水的水质特点···························································8 1.1 采气工艺流程······························································································8 1.2 第一采气厂天然气气体组成······································································8 1.3 气田污水的组成性质分析··········································································8 1.3.1 水质分析···································································································8 1.3.2 污水处理系统出水（回注污水）中悬浮物粒径分布·····························10 2 第二净化厂回注污水管线附着物组成分析·················································11 3 腐蚀倾向的判断·····························································································12 4 污水处理系统腐蚀因素及腐蚀机理·····························································12 4.1 H2S和CO2的腐蚀作用···············································································12 4.1.
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