多氢酸酸化反应特征及动力学

doi:10.7623/syxb201902009

石油学报 ›› 2019, Vol. 40 ›› Issue (2): 207-214.DOI: 10.7623/syxb201902009

多氢酸酸化反应特征及动力学

高嘉珮^1,2, 彭冲³, 牛梦龙⁴, 郑建刚³, 李亚洲³, 欧阳诗昆³, 李稳宏^1,2

1. 西北大学化工学院陕西西安 710069;
2. 陕西省资源化工应用技术工程研究中心陕西西安 710069;
3. 中国石油长庆油田公司第十二采油厂甘肃合水 745400;
4. 西安石油大学化学化工学院陕西西安 710065

收稿日期:2018-01-30 修回日期:2018-10-24 出版日期:2019-02-25 发布日期:2019-03-05
通讯作者: 李稳宏,男,1950年11月生,1976年获西北大学学士学位,现为西北大学化工学院教授、博士生导师,主要从事石油炼制化工领域研究。Email:liwenhong@nwu.edu.cn
作者简介:高嘉珮,女,1994年8月生,2016年获西北大学现代学院学士学位,现为西北大学硕士研究生,主要从事石油开发与油品添加剂研究。Email:2543573218@qq.com

Acidification characteristics and kinetics of multi-hydrogen acid

Gao Jiapei^1,2, Peng Chong³, Niu Menglong⁴, Zheng Jiangang³, Li Yazhou³, Ouyang Shikun³, Li Wenhong^1,2

1. School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, China;
2. Shaanxi Research Center of Chemical Engineering Technology for Resource Utilization, Shaanxi Xi'an 710069, China;
3. The Twelfth Oil Extraction Plant of Petrochina Changqing Oilfield Company, Gansu Heshui 745400, China;
4. College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Shaanxi Xi'an 710065, China

Received:2018-01-30 Revised:2018-10-24 Online:2019-02-25 Published:2019-03-05

摘要/Abstract

摘要：

利用自制多氢酸液XS-1进行静态岩粉溶蚀与岩心流动实验,通过SEM、ICP等实验考察了多氢酸的缓速性与预防二次沉淀性能,并研究了多氢酸与岩心反应动力学特性。结果表明,XS-1多氢酸液具有良好的缓速与预防二次沉淀性能,反应后残酸的极限浓度为0.296 1 mol/L,酸液有效作用时间为6~7 h。在该多氢酸体系下岩心渗透率提高至4.15倍,在此条件下以酸岩反应动力学参数模型建立动力学方程,反应速率比同条件下普通酸液小,进一步证明多氢酸具有一定的缓速性。

关键词: 砂岩酸化, 多氢酸, 酸岩反应, 动力学方程, 现场试验

Abstract:

In this study, the self-made multi-hydrogen acid solution XS-1 is used for static rock powder dissolution and core flow experiment. Using SEM and ICP, the retarding property of multi-hydrogen acid and its performance in preventing secondary precipitation are investigated to study the kinetics characteristics of the reaction between multi-hydrogen acid and core. The results show that the multi-hydrogen acid solution XS-1 has a good performance in retardation and secondary precipitation prevention. After reaction, the limit concentration of residual acid is 0.296 1 mol/L and the effective acting time of acid is 6-7 h.The core permeability is increased to 4.15 times in the multi-hydrogen acid system. Under such condition, the kinetics parameter model of acid and rock reaction is applied to establish the kinetic equation; the reaction rate constant is smaller than that of common acid under the same condition, further proving that multi-hydrogen acid has a certain retarding property.

Key words: sandstone acidification, multi-hydrogen acid, acid-rock reaction, kinetic equation, field test

中图分类号:

TE39

高嘉珮, 彭冲, 牛梦龙, 郑建刚, 李亚洲, 欧阳诗昆, 李稳宏. 多氢酸酸化反应特征及动力学[J]. 石油学报, 2019, 40(2): 207-214.

Gao Jiapei, Peng Chong, Niu Menglong, Zheng Jiangang, Li Yazhou, Ouyang Shikun, Li Wenhong. Acidification characteristics and kinetics of multi-hydrogen acid[J]. Acta Petrolei Sinica, 2019, 40(2): 207-214.

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多氢酸酸化反应特征及动力学

Acidification characteristics and kinetics of multi-hydrogen acid

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