| 大庆油田齐家水源地取水设备腐蚀与堵塞特征及形成机理分析 |
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| 引用本文： | 李东艳,周志祥.大庆油田齐家水源地取水设备腐蚀与堵塞特征及形成机理分析[J].现代地质,1999,13(4):477-480. |
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| 作者姓名： | 李东艳 周志祥 |
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| 作者单位： | 中国地质大学水资源与环境工程系!北京100083(李东艳，贾国东，钟佐燊)，大庆石油管理局供水公司!大庆163454(周志祥，秦延军，宋雷鸣，刘金和) |
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| 基金项目： | 大庆石油管理局重点项目!(项目号 :1996 -6 0 -0 3 )成果 |
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| 摘 要： | 为查明齐家水源地取水设备腐蚀与堵塞的机理 ,在现场测试地下水 Eh值和 p H值的基础上 ,采集了地下水、腐蚀管材及沉砂管中沉积物样品。利用微生物分析、X衍射分析、显微镜鉴定和扫描电镜分析等手段 ,结合水文地球化学特征研究 ,认为滤水管的石墨化及防腐泵铸铁外壳的腐蚀为宏观腐蚀电池电化学腐蚀 ;滤水管、扬水管内壁发生了厌氧硫酸盐还原菌电化学腐蚀和厌氧 H2 O-CO2 电化学腐蚀。堵塞物大部分是腐蚀产物 ,堵塞伴随腐蚀而产生。该水源地水井堵塞的机理与国内外普遍认同的富 Fe2 +地下水氧化结垢使水井堵塞的机理不同。
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| 关 键 词： | 取水设备 腐蚀 堵塞 电化学腐蚀 厌氧硫酸盐还原菌 |
CHARACTERISTICS AND MECHANISM OF THE CORROSION AND CLOGGING OF WELL DEVICE AT QIJIA WATER WORK,DAQING OIL FIELD |
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| Li Dongyan,Jia Guodong,Zhong Zuoxin.CHARACTERISTICS AND MECHANISM OF THE CORROSION AND CLOGGING OF WELL DEVICE AT QIJIA WATER WORK,DAQING OIL FIELD[J].Geoscience——Journal of Graduate School,China University of Geosciences,1999,13(4):477-480. |
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| Authors: | Li Dongyan Jia Guodong Zhong Zuoxin |
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| Abstract: | In order to find out the mechanism of the corrosion and clogging of water well device,besides the field test of groundwater's Eh and p H,samples of groundwater,eroded pipe material and sediment in depositing pipe are collected. By microorganism analysis,X diffraction analysis,electron microscope identification and scanning electron microscope,combining with the study of hydrogeochemicalcharacter,theauthors think that macro corrosion cell causes graphited water strainer and the corrosion of the cast case of pump,and additionally there exits anaerobic sulfate- reducing bacteria and anaerobic H2 O- CO2 system electrical chemical corrosion on the water strainer and the inner wall of water lifting pipe. Most of the clogging materials are corrosion products. Corrosion is accompanied with clogging. The mechanism of clogging atthis water work is differentto the widely accepted opinion thatoxidization ofthe groundwaterwith high concentration of Fe2 leads to well clogging. |
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| Keywords: | well device corrosion clogging electrical chemical corrosion anaerobic sulfate- reducing bacteria |
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