海上油田注水系统高效复配缓蚀剂的优选及性能评价
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摘要
以海上某油田注水系统中的海水和采出水为研究对象,通过单一缓蚀剂的水溶性以及缓蚀效果评价,初步筛选出性能较好的缓蚀剂,再通过复配比例优化,优选出适合海上油田注水系统的高效复配缓蚀剂FHSJ-1,并对其性能进行了评价。试验结果表明:缓蚀剂的缓蚀性能较好,适用范围较大,在温度为20～100℃,矿化度为10～80 g/L的海水及采出水中缓蚀率均高于90%,同时对各类型的钢材的缓蚀率均高于95%;当缓蚀剂质量浓度为30 mg/L,海水与采出水的体积比为1∶1,矿化度为32 376.5 mg/L时,缓蚀率能够达到98%以上,缓蚀性能远优于市售缓蚀剂。研究结果能够为海上油田注水系统的防腐工作提供技术支持,保障注水作业的顺利进行。
Taking seawater and produced water in an offshore oilfield as the research object, through the evaluation of water solubility and corrosion inhibition effect of a single corrosion inhibitor, a better corrosion inhibitor is preliminarily screened out. Then through the optimization of the compound proportion, a high effective compound corrosion inhibitor FHSJ-1 suitable for offshore oilfield water injection system is selected, and its performance is evaluated. The results show that corrosion inhibition performance of corrosion inhibitor is good, and its application range is wide. The corrosion inhibition rate of seawater and produced water with salinity of 10-80 g/L and temperature of 20-100 ℃ is higher than 90%, and the corrosion inhibition rate of different types of steel is higher than 95%. When the mass concentration of corrosion inhibitor is 30 mg/L, the volume ratio of seawater to produced water is 1∶1 and the salinity is 32 376.5 mg/L, the corrosion inhibition rate can reach 98%, and the corrosion inhibition performance is much better than that of the commercial corrosion inhibitor. The research results can provide technical support for anticorrosion work of offshore oil field water injection system and ensure the smooth operation of water injection.
Taking seawater and produced water in an offshore oilfield as the research object, through the evaluation of water solubility and corrosion inhibition effect of a single corrosion inhibitor, a better corrosion inhibitor is preliminarily screened out. Then through the optimization of the compound proportion, a high effective compound corrosion inhibitor FHSJ-1 suitable for offshore oilfield water injection system is selected, and its performance is evaluated. The results show that corrosion inhibition performance of corrosion inhibitor is good, and its application range is wide. The corrosion inhibition rate of seawater and produced water with salinity of 10-80 g/L and temperature of 20-100 ℃ is higher than 90%, and the corrosion inhibition rate of different types of steel is higher than 95%. When the mass concentration of corrosion inhibitor is 30 mg/L, the volume ratio of seawater to produced water is 1∶1 and the salinity is 32 376.5 mg/L, the corrosion inhibition rate can reach 98%, and the corrosion inhibition performance is much better than that of the commercial corrosion inhibitor. The research results can provide technical support for anticorrosion work of offshore oil field water injection system and ensure the smooth operation of water injection.
引文
[1] 张勇.国内油田分层注水技术新进展及发展趋势[J].当代化工,2015,44(11):2605-2607.
[2] 陈元千,吕恒宇,傅礼兵,等.注水开发油田加密调整效果的评价方法[J].油气地质与采收率,2017,24(6):60-64.
[3] 华蓓,穆龙新,翟慧颖,等.基于雷达图法的油田注水开发效果评价方法[J].科技通报,2017,33(2):56-60.
[4] 李海方.低渗透油田注水开发技术研究[J].中国石油和化工标准与质量,2017,37(11):161-162.
[5] 张添锦,张海,李鹏程.靖边油田墩洼油区延9油藏注水开发效果评价[J].石油化工应用,2017,36(5):15-19.
[6] 吴清红,王颖.油田水结垢腐蚀机理及对策研究[J].当代化工,2016,45(8):1827-1830.
[7] 高永刚.基于管道内压的多种腐蚀可靠性评价技术对比[J].能源化工,2017,38(5):80-84.
[8] 李国明,贠玉平,王亚雄,等.延长油田永宁采油厂双河西区回注水腐蚀结垢控制研究[J].石油工程建设,2013,39(6):50-53.
[9] 郑璇.沙念油田套管腐蚀行为研究[J].能源化工,2015,36(1):40-43.
[10] 杨娜,吴明,齐浩,等.污水管道腐蚀机理及防护措施[J].当代化工,2013,42(4):496-498.
[11] 王亮,刘德海,袁志坤,等.中亚某油田回注水腐蚀性分析及治理措施[J].全面腐蚀控制,2016,30(11):61-63.
[12] 马韵,李海涛,刘莉峰,等.海上油田注水过程的腐蚀综合评价[J].石油化工高等学校学报,2012,25(5):52-55.
[2] 陈元千,吕恒宇,傅礼兵,等.注水开发油田加密调整效果的评价方法[J].油气地质与采收率,2017,24(6):60-64.
[3] 华蓓,穆龙新,翟慧颖,等.基于雷达图法的油田注水开发效果评价方法[J].科技通报,2017,33(2):56-60.
[4] 李海方.低渗透油田注水开发技术研究[J].中国石油和化工标准与质量,2017,37(11):161-162.
[5] 张添锦,张海,李鹏程.靖边油田墩洼油区延9油藏注水开发效果评价[J].石油化工应用,2017,36(5):15-19.
[6] 吴清红,王颖.油田水结垢腐蚀机理及对策研究[J].当代化工,2016,45(8):1827-1830.
[7] 高永刚.基于管道内压的多种腐蚀可靠性评价技术对比[J].能源化工,2017,38(5):80-84.
[8] 李国明,贠玉平,王亚雄,等.延长油田永宁采油厂双河西区回注水腐蚀结垢控制研究[J].石油工程建设,2013,39(6):50-53.
[9] 郑璇.沙念油田套管腐蚀行为研究[J].能源化工,2015,36(1):40-43.
[10] 杨娜,吴明,齐浩,等.污水管道腐蚀机理及防护措施[J].当代化工,2013,42(4):496-498.
[11] 王亮,刘德海,袁志坤,等.中亚某油田回注水腐蚀性分析及治理措施[J].全面腐蚀控制,2016,30(11):61-63.
[12] 马韵,李海涛,刘莉峰,等.海上油田注水过程的腐蚀综合评价[J].石油化工高等学校学报,2012,25(5):52-55.