PEP型非离子嵌段聚醚清水剂处理聚合物驱含油污水的性能

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中图分类号：TQ085.4 文献标志码：A

Abstract：Forthetreatmentofhighconcentrationofoilywastewaterforpolymerfloodinginofshoreoilfield，eightnonionic polyether water clarfiers with polypropylene oxide-polyethylene oxide-polypropylene oxide（PEP）block structure were synthesized byusingtriethanolamine，ethanol，glycerol，octadecanolastheinitiatorand ethylene oxide（EO）and propyleneoxide（PO）as the monomers.The structureof the water clarifiers was characterizedbyFTIR，andthe treatment effect was evaluatedbybotletestmethodforhighconcentrationpolymerfloodingoilywastewater.Theresultsshowthatthetreatment efectofeightnon-ionic waterclarifiers isbeterthanthatofcationicflocculantforhighconcentrationpolymerfloodingoily wastewater，and the formed floc is not viscous. The more dosage of TE- 2b ，the longer the processing time，and the higher the temperature，thehighertheoilremovalrate.The moreoiladded，thehighertheoilremovalrate.Whenthedosageof TE-2b is 300 mg/L and the oil is increased to 2% ，the oil removal rate can be increased to 90% .With the increase of polymer content nwastewater，theoilremovalrategraduallydecreases.However，theefectof treatmentintherangeof1OOO mg/Lis not significant，and the oil removal rate can reach more than 70% ：

Keywords： oily wastewater；polymer flooding；non-ionic water clarifier;block polyether

聚合物驱技术被越来越多的油田应用到原油开采过程中[1-3]，该项技术的应用产生了大量含有残余聚合物的高浓度含油污水，给环境安全造成了严重的威胁[4-5]。（剩余8638字）