耐贮存改性酚醛树脂交联剂的合成及性能评价

张贵清, 孙磊, 夏烨, 徐鸿志, 郝志伟

张贵清, 孙磊, 夏烨, 徐鸿志, 郝志伟. 耐贮存改性酚醛树脂交联剂的合成及性能评价[J]. 石油钻探技术, 2017, 45(6): 99-104. DOI: 10.11911/syztjs.201706018
引用本文: 张贵清, 孙磊, 夏烨, 徐鸿志, 郝志伟. 耐贮存改性酚醛树脂交联剂的合成及性能评价[J]. 石油钻探技术, 2017, 45(6): 99-104. DOI: 10.11911/syztjs.201706018
ZHANG Guiqing, SUN Lei, XIA Ye, XU Hongzhi, HAO Zhiwei. Synthesis and Property Evaluation of Storable Modified Phenolic Resin Cross-Linking Agent[J]. Petroleum Drilling Techniques, 2017, 45(6): 99-104. DOI: 10.11911/syztjs.201706018
Citation: ZHANG Guiqing, SUN Lei, XIA Ye, XU Hongzhi, HAO Zhiwei. Synthesis and Property Evaluation of Storable Modified Phenolic Resin Cross-Linking Agent[J]. Petroleum Drilling Techniques, 2017, 45(6): 99-104. DOI: 10.11911/syztjs.201706018

耐贮存改性酚醛树脂交联剂的合成及性能评价

详细信息
    作者简介:

    张贵清(1986-),男,甘肃正宁人,2009年毕业于吉林大学园艺专业,2012年获中国石油大学(北京)应用化学专业硕士学位,工程师,主要从事提高采收率用化学产品的研究工作。

  • 中图分类号: TE39

Synthesis and Property Evaluation of Storable Modified Phenolic Resin Cross-Linking Agent

  • 摘要: 目前国内油田剖面调整作业中常用的酚醛树脂交联剂贮存有效期短,无法满足长周期施工作业需求,为此,采用水杨酸类改性剂合成了改性酚醛树脂交联剂,并应用核磁共振氢谱表征了改性酚醛树脂的分子结构。通过室内试验考察了改性剂加量、催化剂加量及高温对改性酚醛树脂的贮存有效期及凝胶强度的影响,研究了交联剂加量、温度和矿化度对改性酚醛树脂交联体系成胶时间及凝胶强度的影响,评价了改性酚醛树脂交联体系的热稳定性能、封堵性能及提高采收率效果。试验结果表明,改性酚醛树脂分子上引入了具有空间位阻效应的酯基结构,其贮存有效期大幅延长,常温条件下贮存有效期达到234 d,45℃恒温条件下贮存有效期大于90 d;改性酚醛树脂交联体系在60~100℃及矿化度小于20 000 mg/L条件下可生成高强度凝胶;改性酚醛树脂交联体系180 d黏度保留率大于88%,封堵率大于98%,采收率可提高14.6百分点。研究表明,耐贮存改性酚醛树脂交联剂不仅具有良好的交联性能,还具有良好的耐贮存性能,满足长周期施工作业的需要,具有较好的应用前景。
    Abstract: At present,phenolic resin cross-linking agents commonly used in profile control and flooding operations in domestic oilfields have short storage period which makes it unable to meet the requirements of long period field operations.Under such circumstances,the modified phenolic resin cross-linking agents were synthesized by using salicylic acid modifier.Molecular structures of modified phenolic resins were characterized by 1H NMR,and researchers investigated the effects of modifier dosages,catalyst dosages and high temperatures on the storage life and gel strength of modified phenolic resin.The effects of cross-linking agent dosage,temperature and salinity on gelling time and gel strength of modified phenolic resin cross-linked system were also investigated.The thermal stability,plugging performances and EOR effects of the modified phenolic resin cross-linked system were assessed.Lab test results showed that the ester structure with steric hindrance that was introduced into the modified phenolic resin could prolong the storage life significantly,resulting in a storage life of modified phenolic resin up to 234 d at room temperature,and over 90 d at 45℃.The cross-linked system can form strong gel at temperatures of 60-100℃ or salinities of no more than 20 000 mg/L.Studies showed that the viscosity retention rate of the cross-linked system in 180 days was more than 88%,and the plugging ratio more than 98%.In this case,the EOR increased by 14.6%.The synthetically modified phenolic resin cross-linking agents not only have outstanding cross-linking properties,but also have excellent storage performances,so as to meet the demands of long-term operations,with excellent prospects for application.
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出版历程
  • 收稿日期:  2017-07-25
  • 修回日期:  2017-11-09
  • 刊出日期:  1899-12-31

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