缓凝剂SN-3的制备及其对水泥浆横向弛豫时间T2分布的影响

doi:10.16085/j.issn.1000-6613.2016.09.039

化工进展 ›› 2016, Vol. 35 ›› Issue (09): 2926-2933.DOI: 10.16085/j.issn.1000-6613.2016.09.039

缓凝剂SN-3的制备及其对水泥浆横向弛豫时间T₂分布的影响

张瑞¹, 霍锦华¹, 邓媛², 张直建³, 陈大钧¹, 王吉星¹, 喻麟杰¹

1 西南石油大学化学化工学院, 四川成都 610500;
2 西南石油大学石油与天然气工程学院, 四川成都 610500;
3 安东环保技术有限公司, 四川成都 610011

收稿日期:2016-01-25 修回日期:2015-03-09 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: 张瑞(1979-),女,博士,副教授,长期从事油田应用化学方面的教学科研工作。E-mail:zhangrui@swpu.edu.cn。
作者简介:张瑞(1979-),女,博士,副教授,长期从事油田应用化学方面的教学科研工作。E-mail:zhangrui@swpu.edu.cn。

Synthesis of retarder SN-3 and effect on T₂ distribution of cement paste research

ZHANG Rui¹, HUO Jinhua¹, DENG Yuan², ZHANG Zhijian³, CHEN Dajun¹, WANG Jixing¹, YU Linjie¹

1 College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
2 School of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
3 Antonoil Environmental Protection Technology Co., Ltd., Chengdu 610011, Sichuan, China

Received:2016-01-25 Revised:2015-03-09 Online:2016-09-05 Published:2016-09-05

摘要/Abstract

摘要： 首先合成了一种新型两性聚合物缓凝剂SN-3，然后采用红外光谱和元素分析等测试手段对其进行结构表征。其次，对其应用性能作了进一步研究，主要包括稠化时间、加量和温度敏感性等，实验结果表明应用性能满足现场施工要求。利用低场核磁共振测试技术重点研究了缓凝剂SN-3对油井水泥浆水化过程中横向弛豫时间T₂分布的影响，在相同的水灰比、温度和水化时间下，对纯水泥浆C和掺有缓凝剂SN-3的水泥浆CHN的横向弛豫时间进行测试和分析，借助迁移速率和峰形指数两个参数表征水泥浆T₂分布曲线的变化过程。最后，结合X衍射和扫描电镜（SEM）进一步探讨缓凝剂SN-3的缓凝作用原理。实验结果表明，缓凝剂使水泥浆中填充于絮凝结构之间的水的受缚程度减小，存在时间变长，转化为化学结合水所经历时间变长；缓凝剂SN-3主要通过沉淀和络合作用达到缓凝效果的。

关键词: 缓凝剂, 横向弛豫时间, 缓凝机理

Abstract: In this paper,a new type of amphoteric polymer retarder SN-3 is synthesized by solution polymerization,and infrared spectroscopy and elemental analysis is used to characterize the chemical structure of retarder SN-3. In addition,we further research the application performance of retarder SN-3,including the thickening time and the sensitivity to adding amounts and temperature. The results show that the cement paste with retarder SN-3 meets the requirements of the construction on site. Low-field nuclear magnetic resonance(NMR) test technology was used to study the influences of retarder SN-3 on the transverse relaxation time T₂ distribution of cement paste in a hydration process, under the same water to cement ratio,temperature and hydration time to test the transverse relaxation time of the pure cement paste C and the cement paste CHN mixed with polymer SN-3. The migration rate and peak shape index are two parameters employed to characterize the change trend of the T₂ distribution curve of cement paste. A further study about the retarding mechanism of the retarder SN-3 is obtained by low-field NMR analysis,XRD and SEM. The experimental results show that the retarder makes the bound level of water that fills in the flocculation structure decrease; the existence time of physically bound water increase,polymer SN-3 mainly by precipitation and complexation come to retarding effect.

Key words: retarder, the transverse relaxation time, retarding mechanism

中图分类号:

TQ314.2

张瑞, 霍锦华, 邓媛, 张直建, 陈大钧, 王吉星, 喻麟杰. 缓凝剂SN-3的制备及其对水泥浆横向弛豫时间T₂分布的影响[J]. 化工进展, 2016, 35(09): 2926-2933.

ZHANG Rui, HUO Jinhua, DENG Yuan, ZHANG Zhijian, CHEN Dajun, WANG Jixing, YU Linjie. Synthesis of retarder SN-3 and effect on T₂ distribution of cement paste research[J]. Chemical Industry and Engineering Progree, 2016, 35(09): 2926-2933.

参考文献

[1] 高明珠. 核磁共振技术及其应用发展[J]. 信息记录材料,2011,12(3):48-49.
[2] 佘安明,姚武. 基于低场核磁共振技术的水泥浆体孔结构与比表面积的原位表征[J]. 武汉理工大学学报,2013,35(10):11-15.
[3] 孙振平,庞敏,俞洋,等. 减水剂对水泥浆体横向弛豫时间曲线的影响[J]. 硅酸盐学报,2011,39(3):538-542.
[4] 韩冀豫. 高掺量粉煤灰水泥水化产物C-S-H凝胶聚合程度的研究[D]. 武汉:武汉理工大学,2011:2-11.
[5] TAYLOR H F W. Cement chemistry[M]. USA:Thomas Telford Publishing,Thomas Telford Services Ltd.,1992:230.
[6] POP A,BADEA C,ARDELEAN I. The effects of different superplasticizers and water-to-cement ratios on the hydration of gray cement using T2-NMR[J]. Applied Magnetic Resonance,2013,44(10):1223-1234.
[7] 黄伟. 低场核磁共振系统的应用与研究[D]. 武汉:华西师范大学, 2014:17-27.
[8] BADEA C,POP A,MATTEA C,et al. The effect of curing temperature on early hydration of gray cement via fast field cycling-NMR relaxometry[J]. Applied Magnetic Resonance,2014, 45(12):1299-1309.
[9] NESTLE N. NMR relaxometry study of cement hydration in the presence of different oxidic fine fraction materials[J]. Solid State Nuclear Magnetic Resonance,2004,25(1):80-83.
[10] NESTLE N,GALVOSAS P,KARGER J. Liquid-phase self-diffusion in hydrating cement pastes-results from NMR studies and perspectives for further research[J]. Cement and Concrete Research, 2007,37(3):398-413.
[11] 姚武,佘安明,杨培强. 水泥浆体中可蒸发水的¹H核磁共振特征及状态演变[J]. 硅酸盐学报,2009,37(10):1602-1606.
[12] BOHRIS A J,GOERKE U,MCDONALD P J,et al. A broad line NMR and MRI study of water and water transport in Portland cement pastes[J]. Magnetic Resonance Imaging,1998,16(5/6):455-461.
[13] 孙振平,庞敏,俞洋,等. 低场核磁共振技术在水泥基材料研究中的应用及展望[J]. 材料导报,2011,25(4):110-112.
[14] TZIOTZIOU M, KARAKOSTA E, KARATASIOS I, et al. Application of ¹H NMR to hydration and porosity studies of lime-pozzolan mixtures[J]. Microporous and Mesoporous Materials, 2011,139(1):16-24.
[15] FRIEDEMANN K,SCHONFELDER W,STALLMACH F,et al. NMR relaxometry during internal curing of Portland cements by lightweight aggregates[J]. Materials and Structures,2008,41(10):1647-1655.

缓凝剂SN-3的制备及其对水泥浆横向弛豫时间T₂分布的影响

Synthesis of retarder SN-3 and effect on T₂ distribution of cement paste research

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 3

编辑推荐

Metrics

本文评价

[1]	李均星, 郭锦棠, 张弛, 李鹏鹏. 一种新型缓凝剂的制备及其在水泥基复合材料中的应用[J]. 化工进展, 2019, 38(06): 2953-2960.
[2]	张蒙蒙, 赵风清. 青霉素废菌渣微波水解制备复合氨基酸及应用[J]. 化工进展, 2017, 36(06): 2275-2281.
[3]	赵莹, 梁骁男, 李芹, 于小荣, 陈大钧. 高温缓凝剂LY的合成及在低密度水泥浆中的应用[J]. 化工进展, 2015, 34(08): 3124-3127,3141.