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油田污水中Fe²⁺,S^2-,DO及pH值对无机交联体系HPAM-Cr³⁺CDG成胶性能影响的研究

INFLUENCE OF Fe²⁺,S^2- ,DISSOLVED OXYGEN AND pH IN OIL FIELD WASTE WATER TO POLYACRYLANIDE-Cr³⁺ COLLOIDIAL DISPERSION GEL

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【Author】 CHEN Yan ling 1,FAN Chou 1,YANG Wen hua 2,TAN Zhong liang 3,FEI Qi 4 (1.Faculty of Material Science and Chemistry Engineering,China University of Geosciences, Wuhan Hubei 430074,China;2.Hankou School, China University of Geosciences,Wuhan Hubei

【机构】中国地质大学材料科学与化学工程学院；中国地质大学汉口分校；北京石油勘探开发研究院；中国地质大学资源学院湖北武汉430074；湖北武汉430074；湖北武汉430030；北京100083；湖北武汉430074；

【摘要】在对河南油田下二门矿区油田污水进行全面分析的基础上 ,研究了污水中 Fe2 + ,S2 -,溶解氧 (DO)及污水的 p H值对无机交联体系聚丙烯酰胺 (HPAM) -Cr3 +胶态分散凝胶 (CDG)成胶性能的影响。研究结果表明 ,对于 HPAM-Cr3 +体系 ,污水中Fe2 + ,DO对其成胶性能没有影响 ;S2 -和污水的 p H值对其成胶性能有影响。 p H值增大 ,凝胶强度增强 ;S2 -浓度增加 ,则凝胶强度减弱更多还原

【Abstract】 The effect from Fe 2+ ,S 2- ,dissolved oxygen(DO) and pH in waste water on the colloidial dispersion gel(CDG) containing the polyacrylanide(HPAM) and organic chromium(Ⅲ) iron cross linking reagent has been studied based on the total analysis of the waste water from Xia’ermen in Henan oil field.The result shows that Fe 2+ , and DO in waste water have no effect on the properties of HPAM Cr 3+ gel, while S 2- and pH have great effect on them. When pH increases, the gel will be strengthened, but when there is S 2- , the gel will become weak.更多还原