TS型抗盐聚合物溶液黏度特性及驱油效果
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摘要
为研究适合大庆油田二、三类油层聚驱用的抗盐聚合物,利用剪切黏度和拉伸黏度方法,研究了TS型抗盐聚合物的黏度特性及构成,并分析了TS抗盐聚合物驱油效果的影响因素。结果表明:3种TS型抗盐聚合物视黏度是普通中分聚合物的2倍以上; TS0489型抗盐聚合物的本体黏度最低,其缔合黏度占体系黏度的比例高达70%; TS1110型抗盐聚合物的本体黏度最高,其缔合黏度占体系黏度的比例仅为27%;不同TS型抗盐聚合物的抗盐黏度保留率超过普通中分聚合物的2倍; TS型抗盐聚合物在二、三类油层天然岩心中的拉伸应变范围内,其拉伸黏度处于快速上升期间,且不同TS型聚合物拉伸黏度均明显高于普通中分聚合物; TS1110型抗盐聚合物的注入压力和采收率最高,其注入压力是普通中分聚合物的4倍,采收率是普通中分聚合物的1. 6倍。
In order to study the anti-salt polymer suitable for Type Ⅱ and Ⅲ polymer-flooded oil reservoirs in Daqing Oilfield,with the help of the shear viscosity and tensile viscosity methods,the viscosity characteristics and compositions of Type-TS salt-resistant polymers were researched,and moreover the influencing factors on the oil flooded effects by these kinds of the polymer were analyzed. The results show that the apparent viscosities of three kinds of Type-TS salt-resistant polymers are twice more than that of the ordinary medium-mass-fractor polymer; the bulk viscosity of Type-TS0489 anti-salt polymer is the lowest and its association viscosity accounts for 70% of the system viscosity; while the bulk viscosity of Type-TS1110 anti-salt polymer is the highest and the corresponding viscosity only accounts for 27%; the retention rates of the anti-salt viscosity for different kinds of Type-TS anti-salt polymers are twice of that of the ordinary medium-mass-fractor polymer; in the scope of the tensile strain in the natural cores of Type Ⅱand Ⅲ oil reservoirs flooded by Type-TS salt-resistant polymers,the tensile viscosities are in the rapid rising period and furthermore the tensile viscosities are obviously pretty higher than that of the ordinary medium-mass-fractor polymer; the injection pressure and recovery factor of Type-TS1110 anti-salt polymer are the highest i. e. the injection pressure is 4 times of that of the ordinary medium-mass-fractor polymer and the recoveryfactor is 1. 6 times of that of the ordinary medium-mass-fractor polymer.
In order to study the anti-salt polymer suitable for Type Ⅱ and Ⅲ polymer-flooded oil reservoirs in Daqing Oilfield,with the help of the shear viscosity and tensile viscosity methods,the viscosity characteristics and compositions of Type-TS salt-resistant polymers were researched,and moreover the influencing factors on the oil flooded effects by these kinds of the polymer were analyzed. The results show that the apparent viscosities of three kinds of Type-TS salt-resistant polymers are twice more than that of the ordinary medium-mass-fractor polymer; the bulk viscosity of Type-TS0489 anti-salt polymer is the lowest and its association viscosity accounts for 70% of the system viscosity; while the bulk viscosity of Type-TS1110 anti-salt polymer is the highest and the corresponding viscosity only accounts for 27%; the retention rates of the anti-salt viscosity for different kinds of Type-TS anti-salt polymers are twice of that of the ordinary medium-mass-fractor polymer; in the scope of the tensile strain in the natural cores of Type Ⅱand Ⅲ oil reservoirs flooded by Type-TS salt-resistant polymers,the tensile viscosities are in the rapid rising period and furthermore the tensile viscosities are obviously pretty higher than that of the ordinary medium-mass-fractor polymer; the injection pressure and recovery factor of Type-TS1110 anti-salt polymer are the highest i. e. the injection pressure is 4 times of that of the ordinary medium-mass-fractor polymer and the recoveryfactor is 1. 6 times of that of the ordinary medium-mass-fractor polymer.
引文
[1]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.WANG Demin, CHENG Jiecheng, WU Junzheng, et al.Application of polymer flooding technology in Daqing Oilfield[J].Acta Petrolei Sinica,2005,26(1):74-78.
[2]廖广志,牛金刚,邵振波,等.大庆油田工业化聚合物驱效果及主要做法[J].大庆石油地质与开发, 2004, 23(1):48-51.LIAO Guangzhi,NIU Jinggang,SHAO Zhenbo,et al. Effect and main methods of industrial polymer flooding in Daqing Oilfield[J]. Petroleum Geology&Oilfield Development in Daqing,2004,23(1):48-51.
[3]邵振波,张晓芹.大庆油田二类油层聚合物驱实践与认识[J].大庆石油地质与开发,2009,28(5):163-168.SHAO Zhenbo,ZHANG Xiaoqin. Practice and understanding of polymer flooding in the second class reservoir of Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2009,28(5):163-168.
[4]李霞,孙建国.大庆油田三类油层聚合物驱现场试验[J].大庆石油地质与开发,2009,28(4):98-101.LI Xia,SUN Jianguo. Field test of polymer flooding in three types of reservoirs in Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2009,28(4):98-101.
[5]张晓芹,关恒,王洪涛.大庆油田三类油层聚合物驱开发实践[J].石油勘探与开发,2006,33(3):374-377.ZHANG Xiaoqin, GUAN Heng, WANG Hongtao. Development practice of polymer flooding in three types of reservoirs in Daqing Oilfield[J]. Petroleum Exploration and Development,2006,33(3):374-377.
[6]谢坤,卢祥国,姜维东,等.抗盐聚合物储层适应性及其作用机制[J].中国石油大学学报(自然科学版),2017,41(3):144-153.XIE Kun,LU Xiangguo,JIANG Weidong,et al. Reservoir adaptability and action mechanism of salt resistant polymer[J]. Journal of China University of Petroleum(Natural Science Edition),2017,41(3):144-153.
[7]王荣健,薛宝庆,卢祥国,等.疏水缔合聚合物与储层适应性对采收率的影响[J].油田化学,2016,33(1):79-82.WANG Rongjian,XUE Baoqing,LU Xiangguo,et al. Effect of hydrophobic associating polymer and reservoir adaptability on oil recovery[J]. Oilfield Chemistry,2016,33(1):79-82.
[8]孙刚,罗锋.中低相对分子质量抗盐聚合物的分子聚集及溶液特性[J].东北石油大学学报,2007,31(6):44-48.SUN Gang,LUO Feng. Molecular aggregation and solution characteristics of middle and low molecular weight salt tolerant polymers[J]. Journal of Northeast Petroleum University,2007,31(6):44-48.
[9]周浩,王天逸,曹瑞波,等.大庆油田抗盐聚合物筛选及试验[J].大庆石油地质与开发,2015,34(5):97-101.ZHOU Hao,WANG Tianyi,CAO Ruibo,et al. Screening and test of salt resistant polymer in Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2015,34(5):97-101.
[10]伊卓,刘希,方昭,等.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,et al. Viscoelasticity of polymer solution for temperature-resistant and salt-resistant flooding[J].Applied Chemistry,2017,34(2):187-194.
[11]李彦兴,孙刚.抗盐聚合物分子集聚影响因素及其渗流特性[J].西南石油大学学报(自然科学版),2008,30(2):127-130.LI Yanxing,SUN Gang. Factors affecting molecular aggregation of salt tolerant polymers and their percolation characteristics[J].Journal of Southwest Petroleum University(Natural Science Edition),2008,30(2):127-130.
[12]欧阳坚,朱卓岩,王贵江,等. TS系列新型耐温抗盐聚合物的研究[J].石油勘探与开发,2003,30(2):79-81.OUYANG Jian,ZHU Zhuoyan,WANG Guijiang,et al. Study on TS series of new high temperature and salt resistant polymers[J].Petroleum Exploration and Development,2003,30(2):79-81.
[13]欧阳坚,孙广华,王贵江,等.耐温抗盐聚合物TS-45流变性及驱油效率研究[J].油田化学,2004,21(4):330-332.OUYANG Jian,SUN Guanghua,WANG Guijiang,et al. Study on rheology and oil displacement efficiency of high temperature and salt resistant polymer TS-45[J]. Oilfield Chemistry,2004,21(4):330-332.
[14]朱怀江,罗健辉,孙尚如,等.两种新型驱油聚合物在多孔介质中的黏弹性[J].油田化学,2006,23(1):63-67.ZHU Huaijiang, LUO Jianhui, SUN Shangru, et al.Viscoelasticity of two novel oil displacement polymers in porous media[J]. Oilfield Chemistry,2006,23(1):63-67.
[15]郑晓松,崔海清,刘喜林,等.聚合物溶液在缩扩孔隙模型中流动的弹性黏度[J].石油学报,2004,25(2):84-88.ZHENG Xiaosong, CUI Haiqing, LIU Xilin, et al. Elastic viscosity of polymer solution flowing in dilated pore model[J].Acta Petrolei Sinica,2004,25(2):84-88.
[16]李强,曾琼,杨其,等.聚合物体系拉伸流变行为的表征及研究进展[J].高分子通报,2012,25(3):53-61.LI Qiang,ZENG Qiong,YANG Qi,et al. Characterization and research progress of tensile rheological behavior of polymer system[J]. Polymer Bulletin,2012,25(3):53-61.
[17]刘合,朱怀江,罗健辉,等.聚丙烯酰胺及其共聚物水溶液拉伸流变行为研究[J].石油学报, 2010, 31(5):806-809.LIU He,ZHU Huaijiang,LUO Jianhui,et al. Study on tensile rheological behavior of polyacrylamide and its copolymers in aqueous solution[J]. Acta Petrolei Sinica,2010,31(5):806-809.
[18]韩玉贵,曹绪龙,宋新旺,等.驱油用聚合物溶液的拉伸流变性能[J].东北石油大学学报,2011,35(2):41-45.HAN Yugui,CAO Xulong,SONG Xinwang,et al. Tensile rheological properties of polymer solution for oil displacement[J]. Journal of Northeast Petroleum University,2011,35(2):41-45.
[2]廖广志,牛金刚,邵振波,等.大庆油田工业化聚合物驱效果及主要做法[J].大庆石油地质与开发, 2004, 23(1):48-51.LIAO Guangzhi,NIU Jinggang,SHAO Zhenbo,et al. Effect and main methods of industrial polymer flooding in Daqing Oilfield[J]. Petroleum Geology&Oilfield Development in Daqing,2004,23(1):48-51.
[3]邵振波,张晓芹.大庆油田二类油层聚合物驱实践与认识[J].大庆石油地质与开发,2009,28(5):163-168.SHAO Zhenbo,ZHANG Xiaoqin. Practice and understanding of polymer flooding in the second class reservoir of Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2009,28(5):163-168.
[4]李霞,孙建国.大庆油田三类油层聚合物驱现场试验[J].大庆石油地质与开发,2009,28(4):98-101.LI Xia,SUN Jianguo. Field test of polymer flooding in three types of reservoirs in Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2009,28(4):98-101.
[5]张晓芹,关恒,王洪涛.大庆油田三类油层聚合物驱开发实践[J].石油勘探与开发,2006,33(3):374-377.ZHANG Xiaoqin, GUAN Heng, WANG Hongtao. Development practice of polymer flooding in three types of reservoirs in Daqing Oilfield[J]. Petroleum Exploration and Development,2006,33(3):374-377.
[6]谢坤,卢祥国,姜维东,等.抗盐聚合物储层适应性及其作用机制[J].中国石油大学学报(自然科学版),2017,41(3):144-153.XIE Kun,LU Xiangguo,JIANG Weidong,et al. Reservoir adaptability and action mechanism of salt resistant polymer[J]. Journal of China University of Petroleum(Natural Science Edition),2017,41(3):144-153.
[7]王荣健,薛宝庆,卢祥国,等.疏水缔合聚合物与储层适应性对采收率的影响[J].油田化学,2016,33(1):79-82.WANG Rongjian,XUE Baoqing,LU Xiangguo,et al. Effect of hydrophobic associating polymer and reservoir adaptability on oil recovery[J]. Oilfield Chemistry,2016,33(1):79-82.
[8]孙刚,罗锋.中低相对分子质量抗盐聚合物的分子聚集及溶液特性[J].东北石油大学学报,2007,31(6):44-48.SUN Gang,LUO Feng. Molecular aggregation and solution characteristics of middle and low molecular weight salt tolerant polymers[J]. Journal of Northeast Petroleum University,2007,31(6):44-48.
[9]周浩,王天逸,曹瑞波,等.大庆油田抗盐聚合物筛选及试验[J].大庆石油地质与开发,2015,34(5):97-101.ZHOU Hao,WANG Tianyi,CAO Ruibo,et al. Screening and test of salt resistant polymer in Daqing Oilfield[J]. Petroleum Geology&Development in Daqing,2015,34(5):97-101.
[10]伊卓,刘希,方昭,等.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,et al. Viscoelasticity of polymer solution for temperature-resistant and salt-resistant flooding[J].Applied Chemistry,2017,34(2):187-194.
[11]李彦兴,孙刚.抗盐聚合物分子集聚影响因素及其渗流特性[J].西南石油大学学报(自然科学版),2008,30(2):127-130.LI Yanxing,SUN Gang. Factors affecting molecular aggregation of salt tolerant polymers and their percolation characteristics[J].Journal of Southwest Petroleum University(Natural Science Edition),2008,30(2):127-130.
[12]欧阳坚,朱卓岩,王贵江,等. TS系列新型耐温抗盐聚合物的研究[J].石油勘探与开发,2003,30(2):79-81.OUYANG Jian,ZHU Zhuoyan,WANG Guijiang,et al. Study on TS series of new high temperature and salt resistant polymers[J].Petroleum Exploration and Development,2003,30(2):79-81.
[13]欧阳坚,孙广华,王贵江,等.耐温抗盐聚合物TS-45流变性及驱油效率研究[J].油田化学,2004,21(4):330-332.OUYANG Jian,SUN Guanghua,WANG Guijiang,et al. Study on rheology and oil displacement efficiency of high temperature and salt resistant polymer TS-45[J]. Oilfield Chemistry,2004,21(4):330-332.
[14]朱怀江,罗健辉,孙尚如,等.两种新型驱油聚合物在多孔介质中的黏弹性[J].油田化学,2006,23(1):63-67.ZHU Huaijiang, LUO Jianhui, SUN Shangru, et al.Viscoelasticity of two novel oil displacement polymers in porous media[J]. Oilfield Chemistry,2006,23(1):63-67.
[15]郑晓松,崔海清,刘喜林,等.聚合物溶液在缩扩孔隙模型中流动的弹性黏度[J].石油学报,2004,25(2):84-88.ZHENG Xiaosong, CUI Haiqing, LIU Xilin, et al. Elastic viscosity of polymer solution flowing in dilated pore model[J].Acta Petrolei Sinica,2004,25(2):84-88.
[16]李强,曾琼,杨其,等.聚合物体系拉伸流变行为的表征及研究进展[J].高分子通报,2012,25(3):53-61.LI Qiang,ZENG Qiong,YANG Qi,et al. Characterization and research progress of tensile rheological behavior of polymer system[J]. Polymer Bulletin,2012,25(3):53-61.
[17]刘合,朱怀江,罗健辉,等.聚丙烯酰胺及其共聚物水溶液拉伸流变行为研究[J].石油学报, 2010, 31(5):806-809.LIU He,ZHU Huaijiang,LUO Jianhui,et al. Study on tensile rheological behavior of polyacrylamide and its copolymers in aqueous solution[J]. Acta Petrolei Sinica,2010,31(5):806-809.
[18]韩玉贵,曹绪龙,宋新旺,等.驱油用聚合物溶液的拉伸流变性能[J].东北石油大学学报,2011,35(2):41-45.HAN Yugui,CAO Xulong,SONG Xinwang,et al. Tensile rheological properties of polymer solution for oil displacement[J]. Journal of Northeast Petroleum University,2011,35(2):41-45.