一种压裂液用疏水阳离子改性瓜胶的制备与评价

刘通义; 唐瑭; 陈光杰; 董国峰; 唐文越

doi:10.3969/j.issn.1001-5620.2018.01.022

一种压裂液用疏水阳离子改性瓜胶的制备与评价

doi: 10.3969/j.issn.1001-5620.2018.01.022

1. 西南石油大学化学化工学院, 成都 610500;
2. 成都佰椿石油科技有限公司, 成都 610500

详细信息

作者简介:
刘通义,博士,1964年生,长期从事储层改造工作液方面的工作。电话(028)83032595;E-mail:tt3331@sina.com。

中图分类号: TE357.12
计量
- 文章访问数: 830
- HTML全文浏览量: 256
- PDF下载量: 239
- 被引次数: 0
出版历程
- 收稿日期: 2017-09-14
- 刊出日期: 2018-01-30

Preparation and Evaluation of a Hydrophobic Cationic Guar Gum for Fracturing Fluid

1. School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500;
2. Chengdu Baichun Petroleum Technology Co. Ltd, Chengdu 610500

摘要

摘要: 为解决瓜胶压裂液的高地层伤害等问题，对瓜胶GG进行了改性。用十二烷基二甲基叔胺与环氧氯丙烷合成了长链的疏水阳离子单体CT1，以瓜胶为原料，疏水阳离子单体CT1为醚化剂，甲醇为溶剂，氢氧化钠为催化剂，通过溶剂法制备了改性瓜胶CTGG。对其结构进行了红外光谱分析，评价了其溶解性能、增稠性能、水不溶物含量、残渣含量和耐温耐剪切性能。结果表明，CTGG中成功引入了疏水阳离子基团，可以在60 min内基本溶解，其水不溶物含量和残渣含量均低于瓜胶，残渣含量仅为246.45 mg/L；不同浓度下，CTGG的基液黏度均大于GG和HPG；所形成的冻胶在120℃条件下，质量分数为0.35%的CTGG所配成的压裂液体系在120℃下依然具有良好的抗剪切性能，黏度能够维持在67.4 mPa·s以上；质量分数为0.40%时，冻胶的黏度能稳定在300 mPa·s。因此，CTGG具有良好的溶解性能和增稠性能，有利于降低对储层导流能力的伤害，且耐温耐剪切性能好。
- 阳离子改性瓜胶 /
- 疏水基团 /
- 压裂液
Abstract: A modified guar gum (CTGG) has been prepared to minimize formation damage caused by conventional guar gum fracturing fluids. CTGG was obtained through solvent method using guar gum as the raw material, CT1 (a long chain hydrophobic cationic monomer produced with N,N-Dimethyl dodecyl amine and epichlorohydrin) as etherizing agent, methanol as solvent, and sodium hydroxide as catalyst. Characterization of CTGG with IR spectroscopy showed that hydrophobic cationic group has been introduced into the molecular structure of CTGG which dissolved in 60 min. Water insoluble matters and residue were both less than conventional guar gum, The viscosity of CTGG is greater than GG and HPG at different concentrations. Other evaluation experiments indicated that gels formed by CTGG in water had viscosity of 300 mPa·s at 120℃. A fracturing fluid containing 0.35% CTGG (mass ratio) was resistant to shearing at 120℃, having viscosity of at least 67.4 mPa·s and residue of only 246.45 mg/L. These data demonstrate that CTGG has good solubility, thickening performance and temperature and shearing resistance, which are beneficial to protect reservoirs from being damaged.
- Cationically modified guar gum /
- Hydrophobic group /
- Fracturing fluid

HTML全文

参考文献(18)

[1]	李超颖,王英东,曾庆雪. 水基压裂液增稠剂的研究进展[J]. 内蒙古石油化工,2011(5):8-10. LI Chaoying, WANG Yingdong, ZENG Qingxue. New progress of thickener used in water-base fracturing fluids[J]. Inner Mongolia Petrochemical Industry,2011 (5):8-10.
[2]	赵建波,沈一丁,王磊,等. 疏水改性瓜胶稠化剂的制备及结构与性能的相关性[J]. 高分子材料科学与工程,2011,27(10):58-61. ZHAO Jianbo, SHEN Yiding, WANG Lei,et al. Synthesis of hydrophobic modified guar gum thickener and correlationanalysis of its structure and property[J]. Polymer Materials science & Engineering,2011,27(10):58-61.
[3]	陈鹏飞,王煦,颜菲. 一种改性瓜胶的性能评价[J]. 精细石油化工进展,2007(9):1-3. CHEN Pengfei, WANG Xu, YAN Fei. Evaluation of akind of modified guar gum[J]. Advances in Fine Petrolchemicals,2007 (9):1-3.
[4]	曾红,潘英民,卢亚平. 改性植物胶新工艺的研究[J]. 矿冶,2004,13(4):65-68. ZENG Hong, PAN Yingmin, LU Yaping. Study on a new processing technology for modification of plant gum[J]. Mining and Metallurgical Engineering,2004,13(4):65-68.
[5]	吉毅,李宗石,乔卫红. 瓜尔胶的化学改性[J]. 日用化学工业,2005,35(2):111-114. JI Yi, LI Zongshi, QIAO Weihong. Chemical modification of guar gum[J]. China Surfactant Detergent & Cosmetics,2005,35(2):111-114.
[6]	赵建波. 疏水改性瓜胶的制备及其性能研究[D]. 陕西科技大学,2012. ZHAO Jianbo. Synthesis and property analysis of hydrophobic modified guar gum[D]. Shaanxi University of Science & Technology,2012.
[7]	刘鹏飞. 压裂用低分子量瓜胶改性及其性能评价[D]. 西南石油大学,2012. LIU Pengfei. Modification and evaluation of low molecular weight guar gum for fracturing[D].Southwest Petroleum University, 2012.
[8]	张太亮,刘鹏飞,全红平,等. 醚化剂改性低相对分子质量瓜胶的研究[J]. 精细石油化工进展,2012,13(5):7-9. ZHANG Tailiang, LIU Pengfei, QUAN Hongping, et al. Modification of low molecular weight guar gum with etherifying agent[J]. Speciality Petrochemicals,2012, 13(5):7-9.
[9]	赵艳娜. 相转移催化法制备阳离子瓜胶[J]. 江苏化工, 2007(1):29-31. ZHAO Yanna.Synthesis of cationic guar by phase transfer catalysis[J]. Jiangsu Chemical Industry,2007 (1):29-31.
[10]	孟小华. 阳离子瓜儿胶季铵盐的制备及应用[J]. 广州化工,2015(14):70-72. MENG Xiaohua.Preparation and application of cationic guar gumquaternary ammonium salt[J].Guangzhou Chemical Industry, 2015 (14):70-72.
[11]	田萌. 改性黄原胶和羟丙基交联瓜胶过程流变和减阻性能研究[D]. 华东理工大学,2015. TIAN Meng.Research on the Rheological and Drag reduction Properties ofmodified Xanthan gum and low concentration guar solutions[D]. East China University of Science and Technology,2015.
[12]	SONG J, FAN W, LONG X, et al. Rheological behaviors of fluorinated hydrophobically associating cationic guar gum fracturing gel[J]. Journal of Petroleum Science & Engineering, 2016, 146:999-1005.
[13]	薛小佳,沈一丁,赖小娟,等. 2-羟基-3-丁氧基丙基瓜胶的制备及流变性能[J]. 功能材料,2012(1):88-91,95. XUE Xiaojia, SHEN Yiding, LAI Xiaojuan,et al. Preparation and rheological property of 2-hydroxy-3-butoxypropyl guar gum[J]. Journal of Functional Materials,2012(1):88-91,95.
[14]	宫瑞英,吴文辉,史学峰. 疏水改性羟丙基瓜胶的制备及性能[J]. 高分子材料科学与工程,2009(6):132-134. GONG Ruiying, WU Wenhui, SHI Xuefeng. Synthesis and properties of hydrophobicallymodified hydroxypropylguar gum[J]. Polymer Materials Science & Engineering,2009 (6):132-134.
[15]	宫瑞英,吴文辉,史学峰,等. 疏水改性羟丙基瓜胶(Hm-HPG)水溶液黏度行为研究[J]. 精细化工,2008(10):948-951. GONG Ruiying, WU Wenhui, SHI Xuefeng, et al. Viscosity behavior of water solution of hydrophobically modified hydroxypropyl guar gum(Hm-HPG)[J]. Fine Chemicals,2008 (10):948-951.
[16]	胡志勇,荆晓艳,朱海林. 阴离子瓜胶合成新工艺[J]. 河南化工,2007,(12):18-20. HU Zhiyong, JING Xiaoyan, ZHU Hailin. New method for the preparation of anionic guar gum[J]. Henan Chemical Industry,2007 ,(12):18-20.
[17]	黎丽华. 瓜胶的改性、共混及其应用研究[D]. 武汉大学,2004. LI Lihua. Studies on the modification,mixedgelation and application of guar gum[D].Wuhan University,2004.
[18]	李珂. 两性离子瓜胶冻胶酸体系研究[D]. 西南石油大学,2013. LI Ke. The research of gel acid of amphoteric guar gum[D].Southwest Petroleum University, 2013.