油田酸化用高温(90~180 ℃)缓蚀体系的研究现状与思考
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作者单位:

1.重庆科技学院化学化工学院;2.中国石油集团渤海钻探工程有限公司油气合作开发分公司

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中图分类号:

TE39

基金项目:

国家自然科学基金面上项目“基于“滑轮”效应设计构筑聚合物微球及其在孔隙中的受力形变行为研究”(51774062);重庆市教委重点项目“基于RAFT构筑具有‘滑动’效应的凝胶分散体及调驱性质研究”(KJZD-K201901502);重庆科技学院硕士研究生创新计划项目“吲哚和邻菲罗啉类油田酸化缓蚀剂的合成及性能研究”(YKJCX2020519);重庆科技学院硕士研究生创新计划项目“基于γ-环糊精准聚轮烷交联剂的制备及其在凝胶材料中的应用”(YKJCX2020532);重庆科技学院大学生创新创业培育计划训练项目“季铵盐型高温缓蚀剂体系的开发及缓蚀机理研究”(202211551012)


Progress and thinking of high-temperature (90~180 ℃) corrosion systems for oilfield acidizing
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Chongqing University of Science Technology,School of Chemistry and Chemical Engineering

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    摘要:

    深入调研了适用于90~180℃范围内的曼尼希碱、季铵盐和咪唑啉型三类缓蚀剂体系,从缓蚀剂结构、助剂类型、测试条件、缓蚀效果和作用机理五个方面对24种高温缓蚀剂配方进行梳理。分析了三类缓蚀剂主剂的结构改性方法,归纳了常用高温缓蚀助剂的种类,研究了结构改性对缓蚀剂耐温性能和吸附机理产生的影响,得到了一些有价值的客观规律,如对曼尼希碱进行季铵盐改性后会使化学吸附变为混合吸附,缓蚀剂结构中刚性平面环的增多会提升吸附过程中物理吸附的占比,以及杂环胺合成的季铵盐缓蚀剂性能优于简单有机胺合成的季铵盐缓蚀剂等。最后,从配方探索和机理研究的角度对油田酸化用高温缓蚀剂研究的未来发展方向进行了思考。

    Abstract:

    Three kinds of corrosion inhibitor systems include mannich base, quaternary ammonium salt, and imidazolines, which are applicable to the range of 90~180 ℃, have been studied. 24 kinds of high-temperature corrosion inhibitor formulae had been studied from five aspects include the chemical structure, type of accessory ingredients, conditions of testing, corrosion inhibition effects, and absorption mechanism. Modification ways, which could apply to these three kinds of corrosion inhibitors, had been analyzed. Accessory ingredients which can be used in high-temperature conditions had been generalized. And the effects of structural modifications on corrosion inhibitors’ performance of high-temperature resistance and absorption mechanism had been researched. And some valuable conclusions had been observed, just like quaternization reaction can make the absorption mechanism of mannich base from chemisorption to mixed absorption, there were more rigid rings in the chemical structure of corrosion inhibitors, the effect of the physical adsorption was stronger, and quaternary ammonium salts synthesized by heteroaryl amines have better performance than quaternary ammonium salts synthesized by sample organic amines et al. Last, the review considered the future of high-temperature corrosion inhibitor researches according to the formulation exploration and the mechanism research.

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  • 收稿日期:2022-02-16
  • 最后修改日期:2022-03-30
  • 录用日期:2022-04-28
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