耐温抗盐驱油聚合物溶液黏弹性

doi:10.11944/j.issn.1000-0518.2017.02.160118

摘要/Abstract

摘要：

对3种不同结构类型的耐温抗盐驱油聚合物〔高分子量聚丙烯酰胺(HPAM)、磺化聚丙烯酰胺(S-HPAM)和疏水缔合聚丙烯酰胺(A-HPAM)〕的溶液黏弹性能进行了研究。在温度85 ℃下,通过稳态剪切和动态剪切试验,考察了质量浓度和矿化度对聚合物溶液黏弹性的影响。结果表明,随剪切速率增加,溶液表观黏度逐渐降低。质量浓度越高,溶液的储能模量(G')和损耗模量(G″)越大。由动态剪切实验数据,计算得到第一法向应力差(N₁)。随质量浓度增加,聚合物溶液的N₁逐渐增大;随矿化度增加,聚合物溶液的N₁出现不同盐敏感区域,说明不同结构类型的驱油聚合物溶液对矿化度的弹性响应不同。研究结果为高温高盐油藏聚合物驱剂的选择及开发提供了理论参考。

关键词: 聚丙烯酰胺, 黏弹性, 储能模量, 损耗模量, 法向应力差

Abstract:

The effects of mass concentration and salinity on the viscoelasticity of three temperature-tolerant and salt-resistant flooding polymers(high molecular mass polyacrylamide(HPAM), sulfonated polyacrylamide(S-HPAM) and hydrophobic associating polyacrylamide(A-HPAM)), were investigated through the dynamic and steady state shear test at 85 ℃. The results show that the higher the mass concentration, the higher the storage modulus(G') and the loss modulus(G″). The apparent viscosity of polymer solutions decreases with the increase of the shear rate. The normal stress difference(N₁) of polymer solutions was calculated by using dynamic experimental data. With the increase of the solution concentration, N₁ gradually increases. With the increase of salinity, N₁ appears different salt sensitive areas, which shows that elastic responses of polymer solutions to salinity are different. The study provides the theoretical reference for the choice and development of flooding polymers of high temperature and high salt reservoir.

Key words: polyacrylamide, viscoelasticity, storage modulus, loss modulus, normal stress difference

伊卓, 刘希, 方昭, 杜超, 胡晓娜, 张文龙, 祝纶宇. 耐温抗盐驱油聚合物溶液黏弹性[J]. 应用化学, 2017, 34(2): 187-194.

YI Zhuo, LIU Xi, FANG Zhao, DU Chao, HU Xiaona, ZHANG Wenlong, ZHU Lunyu. Viscoelasticity of Temperature-Tolerant and Salt-Resistant Flooding Polymer Solutions[J]. Chinese Journal of Applied Chemistry, 2017, 34(2): 187-194.

参考文献

[1]	WANG Demin,CHENG Jiecheng,WU Junzheng,et al.Application of Polymer Flooding Technology in Daqing Oilfield[J]. Acta Petrol Sin,2005,26(1):74-78(in Chinese). 王德民,程杰成,吴军政,等. 聚合物驱油技术在大庆油田的应用[J]. 石油学报,2005,26(1):74-78.
[2]	SUN Huanquan. Practice and Understanding on Tertiary Recovery in Shengli Oil field[J]. Pet Explor Dev,2006,33(3):262-266(in Chinese). 孙焕泉. 胜利油田三次采油技术的实践与认识[J]. 石油勘探与开发,2006,33(3):262-266.
[3]	XIA Huifen,WANG Demin,LIU Zhongchun,et al.Study on the Mechanism of Polymer Solutiom with Visco-elastic Behavior Increasing Microscopic Oil Displacement Efficiency[J]. Acta Petrol Sin,2001,22(4):60-65(in Chinese). 夏惠芬,王德民,刘中春,等.粘弹性聚合物溶液提高微观驱油效率的机理研究[J]. 石油学报,2001,22(4):60-65.
[4]	XIA Huifen,WANG Demin,GUAN Qingjie,et al.Experiment of Viscoelasticity of Polymer Solution[J]. J Daqing Petrol Inst,2002,26(2):105-108(in Chinese). 夏惠芬,王德民,关庆杰,等. 聚合物溶液的粘弹性实验[J]. 大庆石油学院学报,2002,26(2):105-108.
[5]	XIA Huifen,ZHANG Jiuran,LIU Songyuan. Viscoelasticity and Factors of Polymer Solution[J]. J Daqing Petrol Inst,2011,35(1): 37-41(in Chinese). 夏惠芬,张九然,刘松原. 聚丙烯酰胺溶液的黏弹性及影响因素[J]. 大庆石油学院学报,2011,35(1):37-41.
[6]	YI Zhuo,LIU Xi,FANG Zhao,et al.Structure and Properties of Temperature-Tolerant and Salt-Resistant Polyacrylamide for Tertiary Oil Recovery[J]. Petrol Chem Technol,2015,44(6):770-778(in Chinese). 伊卓,刘希,方昭,等. 三次采油耐温抗盐聚丙烯酰胺的结构与性能[J]. 石油化工,2015,44(6):770-778.
[7]	LIU Jianping,WANG Xuefang,YANG Xiaomin. Progress of Synthesis and Application of High Molecular Weight Polyacrylamide[J]. Chem Eng,2010,(8):26-28(in Chinese). 刘建平,王雪芳,杨小敏. 高分子量聚丙烯酰胺的合成与应用进展[J]. 化学工程师,2010,(8):26-28.
[8]	YI Zhuo,HUANG Fengxing. Research on the Copolymer of AM and AMPS and Its Drying[J]. Fine Spec Chem,2010,18(8):25-28(in Chinese). 伊卓,黄凤兴. AM/AMPS二元共聚物及其干燥研究[J]. 精细与专用化学品,2010,18(8):25-28.
[9]	ZHAO Fangyuan,MAO Bingquan,YI Zhuo,et al.Synthesis of AM/AMPS Copolymer by Adiabatic Reaction and Its Performance[J]. Fine Chem,2012,29(12):1226-1231(in Chinese). 赵方园,毛炳权,伊卓,等. 绝热反应合成AM/AMPS共聚物及其性能[J]. 精细化工,2012,29(12):1226-1231.
[10]	YI Zhuo,ZHAO Fangyuan,LIU Xi,et al.Synthesis and Performance Evaluation of Temperature-tolerated and Salt-resisted Polymers for Tertiary Oil Recovery[J]. Sci Sin Chim,2014,44(11):1-9(in Chinese). 伊卓,赵方园,刘希,等. 三次采油耐温抗盐聚合物的合成与评价[J]. 中国科学,2014,44(11):1-9.
[11]	YI Zhuo,YANG Fulin,LIU Xi,et al.Preparation and Properties of Flooding Copolymer P(AM/AMPSNa/AANa) for High-Temperature and High-Salinity Oil Reservoir with Mid-Low Permeability[J]. Chinese J Appl Chem,2015,32(5):519-526(in Chinese). 伊卓,杨付林,刘希,等. 中低渗透高温高盐油藏驱油共聚物P(AM/AMPSNa/AANa)的合成与性能[J]. 应用化学,2015,32(5):519-526.
[12]	LI Linhui, GUO YongJun,LUO Pingya, et al. Synthesis and Solution Properties of a Hydrophobically Associating Water-soluble Polymer[J]. Chinese J Appl Chem,2003,20(11):1048-1051(in Chinese). 李林辉,郭拥军,罗平亚,等. 一种疏水缔合水溶性聚合物的合成及其溶液性能[J]. 应用化学,2003,20(11):1048-1051.
[13]	LIU Pingde,NIU Yabin,BO Jiatai,et al.Synthesis and Performance of Hydrophobically Associating(Acrylamide-Hexadecyl Ally Ammonium Chloride-2-Acrylmino-2-Methyl Propane Sufuric Acid)Terpolymers[J]. Acta Polym Sin,2002,(5):692-694(in Chinese). 刘平德,牛亚斌,卜家泰,等. 疏水缔合(丙烯酰胺-十六烷基二甲基烯丙基氯化铵-2-丙烯酰胺基-2-甲基丙磺酸)三元共聚物的合成与性能研究[J]. 高分子学报,2002,(5):692-694.
[14]	LI Daoshan,KANG Wanli,ZHU Hongjun. Studies on Viscoelasticity of Aqueous Hydrolyzed Polyacrylamide Solutions[J]. Oilfield Chem,2003,20(4):347-350(in Chinese). 李道山,康万利,朱洪军. 聚丙烯酰胺水溶液黏弹性研究[J]. 油田化学,2003,20(4):347-350.
[15]	FENG Rusen,GUO Yongjun,Luo Pingya,et al.Advances in Researching Rheological Property of Hydrophobically Associated Polyacrylamide[J]. China Offshore Oil Gas,2009,21(5):324-328(in Chinese). 冯如森,郭拥军,罗平亚,等. 疏水缔合型聚丙烯酰胺溶液流变性研究进展[J]. 中国海上油气,2009,21(5):324-328.
[16]	ZHONG Chuanrong,LIAN Xiaofei,JIANG Liufeng. Association and Viscoelastic Behaviors of the Acrylamide-baded Graft Polymer in Aqueous solutions[J]. Acta Petrol Sin,2013,34(3):518-522(in Chinese). 钟传蓉,练小飞,蒋留峰. 接枝丙烯酰胺共聚物在水溶液中的缔合与黏弹行为[J]. 石油学报,2013,34(3):518-522.
[17]	KANG Wanli,YANG Hongbin,XU Hao,et al.Synthesis of Viscoelastic Microspheres and Rheological Property of Its Disperse System[J]. Polym Mater Sci Eng,2015,31(3):1-5(in Chinese). 康万利,杨红斌,徐浩,等. 黏弹微球的合成及分散体系的流变性能[J]. 高分子材料科学与工程,2015,31(3):1-5.