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刘锋报, 张顺从, 晏智航, 罗霄, 董樱花, 孙爱生. 八胺基星形小分子抑制剂的制备及其性能[J]. 钻井液与完井液, 2021, 38(3): 317-323. doi: 10.3969/j.issn.1001-5620.2021.03.009
引用本文: 刘锋报, 张顺从, 晏智航, 罗霄, 董樱花, 孙爱生. 八胺基星形小分子抑制剂的制备及其性能[J]. 钻井液与完井液, 2021, 38(3): 317-323. doi: 10.3969/j.issn.1001-5620.2021.03.009
LIU Fengbao, ZHANG Shuncong, YAN Zhihang, LUO Xiao, DONG Yinghua, SUN Aisheng. Preparation and Performance Study of an Octaamino Star-Shaped Low Molecular Weight Polymer Inhibitor[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(3): 317-323. doi: 10.3969/j.issn.1001-5620.2021.03.009
Citation: LIU Fengbao, ZHANG Shuncong, YAN Zhihang, LUO Xiao, DONG Yinghua, SUN Aisheng. Preparation and Performance Study of an Octaamino Star-Shaped Low Molecular Weight Polymer Inhibitor[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(3): 317-323. doi: 10.3969/j.issn.1001-5620.2021.03.009

八胺基星形小分子抑制剂的制备及其性能

doi: 10.3969/j.issn.1001-5620.2021.03.009
详细信息
    作者简介:
  • 中图分类号: TE254.4

Preparation and Performance Study of an Octaamino Star-Shaped Low Molecular Weight Polymer Inhibitor

  • 摘要: 目前使用的超支化多胺小分子抑制剂存在伯胺基团密度较低、在高pH值环境中抑制性不足等缺陷。针对此情况,以季戊四醇为原料,通过两步反应,制得了具有规整分子结构与高胺基密度的八胺基星形小分子(OASS)。分子模拟结果表明,OASS在黏土表面的吸附密度与季戊四胺(PTTA)、3,3-双(2-氨基乙基)-1,5-戊二胺(BAPD)差别不大,但单分子吸附能大幅高于PTTA、BAPD,表明3种多胺小分子在黏土表面的吸附中心均由胺基提供,且胺基密度高的OASS具有更强的吸附能力。吸附性能测定表明,OASS在25℃下的饱和吸附量只有1.12 mmol/L,达到饱和吸附量时所需的物质的量浓度仅为10 mmol/L。抑制黏土造浆、线性膨胀与滚动回收等室内实验结果表明,OASS对黏土与泥页岩岩屑造浆的抑制性能均显著优于PTTA与BAPD;与现场钻井液的配伍性实验表明,OASS不会影响钻井液老化前后的流变性能,且可改善降滤失性能,并提高泥页岩在钻井液中的滚动回收率。研究结果证明,OASS具有优异的抑制性能,且可与不同钻井液体系形成良好配伍。

     

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  • 收稿日期:  2021-02-19

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