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高效嘧啶衍生物酸化缓蚀剂的研制与表征

夏玉磊 兰建平 姚伟

夏玉磊,兰建平,姚伟. 高效嘧啶衍生物酸化缓蚀剂的研制与表征[J]. 钻井液与完井液,2023,40(6):827-834 doi: 10.12358/j.issn.1001-5620.2023.06.018
引用本文: 夏玉磊,兰建平,姚伟. 高效嘧啶衍生物酸化缓蚀剂的研制与表征[J]. 钻井液与完井液,2023,40(6):827-834 doi: 10.12358/j.issn.1001-5620.2023.06.018
XIA Yulei, LAN Jianping, YAO Wei.The development and characterization of a high efficiency pyrimidine derivatives corrosion inhibitor for acid jobs[J]. Drilling Fluid & Completion Fluid,2023, 40(6):827-834 doi: 10.12358/j.issn.1001-5620.2023.06.018
Citation: XIA Yulei, LAN Jianping, YAO Wei.The development and characterization of a high efficiency pyrimidine derivatives corrosion inhibitor for acid jobs[J]. Drilling Fluid & Completion Fluid,2023, 40(6):827-834 doi: 10.12358/j.issn.1001-5620.2023.06.018

高效嘧啶衍生物酸化缓蚀剂的研制与表征

doi: 10.12358/j.issn.1001-5620.2023.06.018
基金项目: 国家重大科技专项“山地页岩气井优快钻完井技术现场试验与应用”(2017ZX05063- 003)。
详细信息
    作者简介:

    夏玉磊,高级工程师,博士研究生,现在主要从事油气田开发专业压裂酸化及试油(气)工作。E-mail:xiayl@cnpc.com.cn。

  • 中图分类号: TE357.12

The Development and Characterization of a High Efficiency Pyrimidine Derivatives Corrosion Inhibitor for Acid Jobs

  • 摘要: 采用绿色嘧啶生物材料4-氨基-6-羟基-2-巯基嘧啶(AMSN)和无水N,N-二甲基甲酰胺(DMF),一步合成了高效嘧啶衍生物酸化缓蚀剂ASMF,红外光谱表征及元素分析结果表明其合成纯度较高。通过研究其合成过程中影响ASMF产率的因素发现:AMSN和DMF的物质的量之比的水平宜选为1∶1,反应温度不宜高于170 ℃,反应时间至少要有4 h,ASMF可获得较高产率。通过中试生产高效嘧啶衍生物酸化缓蚀剂ASMF,并研究其缓蚀性能,与市售生物缓蚀剂相比,中试产品嘧啶衍生物酸化缓蚀剂ASMF在高浓度酸液(>20%)中仍有优秀的缓蚀性能,其耐温能达170 ℃,添加量低于0.2%时,缓蚀剂ASMF仍能表现出优异的缓蚀性能。ASMF电化学极化曲线结果表明,缓蚀剂ASMF能有效地抑制腐蚀过程中阴极和阳极过程的电极反应,是偏阴极抑制的混合型缓蚀剂;阻抗结果表明,ASMF具有良好的缓蚀性能,其在添加量为0.2%时,其缓蚀效率可达99.85%,具有高效的缓蚀效率;岩心损害评价表明,缓蚀剂ASMF的岩心伤害性能属于弱伤害,对环境友好。综上认为所研制的产品为绿色高效嘧啶衍生物酸化缓蚀剂。

     

  • 图  1  高效嘧啶衍生物缓蚀剂ASMF合成路线

    图  2  高效嘧啶衍生物缓蚀剂ASMF的红外光谱

    图  3  AMSN和DMF的物质的量 之比对ASMF产率的影响

    图  4  反应温度对高效嘧啶衍生物 缓蚀剂ASMF产率的影响

    图  5  反应时间对ASMF产率的影响

    图  6  盐酸浓度对缓蚀剂缓蚀性能的影响

    图  7  温度对缓蚀剂缓蚀性能的影响

    图  8  缓蚀剂加量对缓蚀剂缓蚀性能的影响

    图  9  不同质量分数ASMF盐酸溶液 中的极化曲线和阻抗谱图

    表  1  缓蚀剂ASMF的相关电化学参数拟合结果

    ASMF/
    %
    腐蚀电位/
    mV
    腐蚀电流/
    mA·cm−2
    ba/
    mV·dec−1
    bc/
    mV·dec−1
    缓蚀效率/
    %
    空白−7651.3×10−571−232
    0.05−7171.8×10−777−12395.49
    0.10−6954.3×10−851−10597.65
    0.15−6913.7×10−850−11998.70
    0.20−6892.1×10−856−11399.85
      注:babc为塔菲尔斜率。
    下载: 导出CSV

    表  2  缓蚀剂ASMF对长庆油田天然岩心的伤害评价

    岩心K0/mDKd/mD岩心伤害率/%
    C-10.03340.028310.78
    C-20.04630.04009.35
    Y-10.03750.031810.64
    Y-20.03860.033010.09
    下载: 导出CSV

    表  3  不同缓蚀剂在长庆油田应用实验

    缓蚀
    试验
    井号
    T井内/
    井内酸浓度/
    %
    油管节扣在
    井下时间/d
    缓释效
    率/%
    JN1#85~9015.1~17.3553.2
    JY-8112#85~9015.2~16.9548.3
    TDAS3#130~15018.7~19.3565.3
    ASMF4#150~17018.2~20.4598.3
    下载: 导出CSV
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  • 收稿日期:  2023-07-10
  • 修回日期:  2023-08-22
  • 刊出日期:  2023-12-30

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