摘要
南海西部某油田上部设施水处理系统由于FeS结垢导致水体发黑。建立了FeS垢的实验室和现场筛选评价方法。以5种基础防垢剂为原料,对单一防垢剂及复配防垢剂的防垢效果进行了评价,通过评价筛选出FeS垢专用防垢剂。结果表明:以有机膦酸盐(A)、聚合物膦酸盐(B)、EDTA(C)、有机酸螯合剂(E)4种防垢剂为基础的复配防垢剂具有最佳的防垢效果,可以有效地抑制FeS的产生;当添加量为20 mg/L(5 mg/L A+5 mg/L B+5 mg/L C+5 mg/L E)时,在实验室和现场试验中其防垢效率分别达到了92.17%和91.25%。
The produced water in the ground processing system of an oilfield in the west of the South China Sea became black due to FeS scaling.New methods were established to evaluate scale inhibitors of FeS both in lab and in situ.Five basic scale inhibitors were used as raw materials,and the scale inhibition effects of single scale inhibitors and compound scale inhibitors were estimated to screen the special scale inhibitor for FeS.The results showed that the compound scale inhibitor based on organic phosphonate(A),polymer phosphonate(B),EDTA(C)and organic acid chelating agent(E)had the best scale effect,which could effectively inhibit the production of FeS.When the dosage of the compound scale inhibitor was 20 mg/L(5 mg/L A+5 mg/L B+5 mg/L C+5 mg/L E),the scale inhibition efficiency reached 92.17%and 91.25%in lab test and in situ test respectively.
作者
张晓霞
谢思宇
李强
王虎
阳中良
ZHANG Xiaoxia;XIE Siyu;LI Qiang;WANG Hu;YANG Zhongliang(Zhanjiang Branch,CNOOC(China)Co.,Ltd.,Zhangjiang 524000,China;Hainan Branch,CNOOC(China)Co.,Ltd.,Haikou 570100,China;Southwest Petroleum University,Chengdu 610500,China)
出处
《腐蚀与防护》
CAS
北大核心
2022年第11期54-59,共6页
Corrosion & Protection
关键词
油田采出水
结垢
硫化亚铁
防垢剂
produced water in oilfield
scaling
ferrous sulfide
scale inhibitor
