有机铵盐黏土稳定剂制备与抑制性研究  

Preparation and Inhibition Study of Organic Ammonium as Clay Stabilizer

作　　者：景云天 朱宝忠 都伟超 张明[1] 张洁[1] 陈刚[1,3] JING Yuntian;ZHU Baozhong;DU Weichao;ZHANG Ming;ZHANG Jie;CHEN Gang(Shaanxi Key Laboratory of Environmental Pollution Control and Reservoir Protection in Oil and Gas Field,Xi’an Petroleum University,Xi’an 710065,China;Institute of Petroleum Engineering Technology,Jianghan Oilfield Branch,China Petroleum & Chemical Corporation,Qianjiang 433100,China;State Key Laboratory of Petroleum Pollution Control,CNPC Research Institute of Safety and Environmental Technology,Beijing 102206,China)

机构地区：[1]西安石油大学,陕西省油气田环境污染控制技术与储层保护重点实验室,陕西西安710065 [2]中国石油化工股份有限公司江汉油田分公司,石油工程技术研究院,湖北潜江433100 [3]中国石油安全环保技术研究院,石油石化污染物控制与处理国家重点实验室,北京102206

出　　处：《化工技术与开发》2019年第10期1-5,9,共6页Technology & Development of Chemical Industry

基　　金：国家科技重大专项(2017ZX05069004);陕西省重点研发计划重点产业创新链(群)项目(2019ZDLGY06-03)

摘　　要：采用工业有机杂胺与常见酸以不同比例合成小分子铵盐,通过防膨缩膨实验和线性膨胀率的测定,初步筛选出杂胺混合酸-3盐作为抑制剂。利用热重分析、激光粒度分析和电镜扫描,研究了抑制剂与黏土之间的作用机理。结果表明,铵盐HS-1即杂胺与混合酸-3以质量比1∶3反应的产物,其浓度为0.1%时,防膨率达到72.97%,缩膨率为54.50%,线性膨胀率为27.30%,对黏土的水化膨胀分散具有良好的抑制效果。推测抑制机理是黏土稳定剂进入黏土层间,与层间水分子进行交换,从而减小了层间距,抑制了黏土的水化膨胀。Small molecule ammonium salts were synthesized from heteroamine and common acids in different proportions. Through anti-swelling experiment and linear swelling rate determination, heteroamine sulfate was preliminarily screened out as inhibitor. Thermogravimetric analysis, laser particle size analysis and scanning electron microscopy were used to study the interaction mechanism between the inhibitor and clay. The results showed that when ammonium salt HS-1 was mixed with sulfuric acid at a mass ratio of 1:3 and the concentration was 0.1%, the anti-swelling rate reached 72.97%, the shrinkage rate was 54.29%, and the linear expansion rate was 27.30%. It had a good inhibition effect on the hydration, expansion and dispersion of bentonite. It was presumed that the inhibition mechanism was that the clay stabilizer entered the interlayer of clay and exchanged with interlayer water molecules, thus reduced the interlayer spacing and inhibited the hydration expansion of clay.

关 键 词：杂胺 黏土 抑制性 机理 

分 类 号：TE254.4[石油与天然气工程—油气井工程]