油田采出水处理复合阻垢缓蚀剂的研究

表面技术SUＲFACETECHNOLOGY第43卷第6期2014年12月收稿日期:2014-06-26;修订日期:2014-07-29Ｒeceived:2014-06-26;Ｒevised:2014-07-29作者简介:闫旭涛(1966—)，男，陕西户县人，高级工程师，主要研究方向为工业水处理技术。Biography:YANXu-tao(1966—)，Male，fromhuxian，shaanxi，Seniorengineer，Ｒesearchfocus:industrialwatertreatment．油田采出水处理复合阻垢缓蚀剂的研究闫旭涛，刘志刚(陕西省石油化工研究设计院陕西省工业水处理工程技术研究中心，西安710054)摘要:目的制备一种高效、复合型的油田采出水处理阻垢缓蚀剂。方法以二己烯三胺五亚甲基膦酸、磺酸基共聚物和钨酸钠为原料复配成复合阻垢缓蚀剂，通过静态阻垢试验和动态腐蚀试验，研究复合阻垢缓蚀剂的防垢和缓蚀效果与其质量浓度的关系，考察絮凝剂、杀菌剂及缓蚀剂等水处理剂对防垢效果的影响。结果在油田采出水处理中，阻垢缓蚀剂最佳质量浓度为30mg/L，此时的阻垢率＞95%，腐蚀速率为0．0696mm/a。油田采出水中过量的絮凝剂及季铵盐1227杀菌剂会造成阻垢率降低，咪唑啉缓蚀剂对阻垢率有增效作用，异噻唑啉酮杀菌剂对阻垢率影响较小。结论该复合阻垢缓蚀剂生产制备简单，阻垢和缓蚀性能优良。关键词:阻垢缓蚀剂;阻垢率;油田采出水中图分类号:TQ085文献标识码:A文章编号:1001-3660(2014)06-0116-05ＲesearchofCompositeScaleandCorrosionInhibitorforOilfieldProducedWaterTreatmentYANXu-tao，LIUZhi-gang(ShaanxiＲesearchCenterofIndustrialWaterTreatmentEngineeringandTechnology，ShaanxiＲesearchDesignInstituteofPetroleumandChemicalIndustry，Xi'an710054，China)ABSTＲACT:ObjectiveTodevelopanewtypeofhighlyefficientcompositescaleandcorrosioninhibitorforoilfieldproducedwa-tertreatment．MethodsAcompositescaleandcorrosioninhibitorwaspreparedusingbis(hexamethylenetriaminepenta(methylenephosphonicacid))，sulfonicacidcopolymerandsodiumtungstateasrawmaterials．Bythestaticscaleinhibitiontestanddynamiccorrosiontest，thescaleandcorrosioninhibitionperformancewereinvestigatedatdifferentmassconcentrationsofthecompositescaleandcorrosioninhibitor．Theinfluencesofflocculant，corrosioninhibitorsandbactericideonscaleinhibitionwerestudied．Ｒe-sultsThescaleinhibitionratewasover95%andthecorrosioninhibitionratewas0．0696mm/aintheoilfieldproducedwatertreat-mentwhentheoptimalmassconcentrationofthescaleandcorrosioninhibitorwas30mg/L．Theexcessofflocculantandquaterna-ry-ammonium-salt1227bactericideinoilfieldproducedwatercauseddecreaseinthescaleinhibitionrate．Imidazolinecorrosionin-hibitorhadsynergisticeffectonthescaleinhibitionrate，whilebactericideisothiazolonehadlittleeffectontherateofscaleinhibi-tion．Con