核壳型丁苯胶乳的制备及其对油井水泥石性能的影响
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摘要
针对传统的丁苯胶乳敏感性强、增韧能力不足、综合性能差等问题,本文采用微滴乳液聚合方法,利用苯乙烯、液体聚丁二烯、新型含羧基功能单体X和2-丙烯酰胺基-2-甲基丙磺酸为主要原料,合成了一种具有抗盐、增韧效果的丁苯胶乳RSL-100L。透射电镜照片显示:RSL-100L具有明显的核壳结构,且在溶液中分散性良好。应用性能实验评价表明:RSL-100L胶乳改性水泥浆抗盐性能良好,早期强度发展快,具有优良的防气窜能力;与纯水泥石相比,RSL-100L胶乳改性水泥石在高强度下具有良好的形变能力和弹韧性。RSL-100L胶乳与水泥颗粒之间的作用机制探究表明:RSL-100L胶乳可通过静电吸引作用和与钙离子的络合作用吸附到水泥颗粒表面,从而填充水泥颗粒之间的孔隙和裂缝,进而防止气窜,提高水泥基复合材料的弹韧性。
To solve the problems faced by traditional styrene-butadiene latexes, such as serious sensitivity, insufficient toughening capacity and poor comprehensive properties, the styrene-butadiene latex(RSL-100 L) was synthesized by emulsion polymerization of styrene, liquid polybutadiene and 2-acrylamido-2-methyl-propane sulfonic acid monomers with a new kind of functional monomers containing —COOH groups. The RSL-100 L obtained was a tough and salt-toleration polymer. The TEM image indicated that RSL-100 L had formed a stable core-shell structure in solution. The performance-evaluation experiments showed that the salt tolerance, early strength and gas channeling prevention of the cement slurry were improved by RSL-100 L latex. The cement paste exhibited better deformation ability and elasticity property than the non-modified cement paste. The exploration of action mechanism between RSL-100 L latex particles and cement grains found that the micro-size particles of RSL-100 L latex could be adsorbed onto the surface of cement grains by electrostatic interaction and Ca2+complex, thereby filling the pores and gaps between the cement grains, which prevent gas channeling and improve the elasticity of cement-based composites.
To solve the problems faced by traditional styrene-butadiene latexes, such as serious sensitivity, insufficient toughening capacity and poor comprehensive properties, the styrene-butadiene latex(RSL-100 L) was synthesized by emulsion polymerization of styrene, liquid polybutadiene and 2-acrylamido-2-methyl-propane sulfonic acid monomers with a new kind of functional monomers containing —COOH groups. The RSL-100 L obtained was a tough and salt-toleration polymer. The TEM image indicated that RSL-100 L had formed a stable core-shell structure in solution. The performance-evaluation experiments showed that the salt tolerance, early strength and gas channeling prevention of the cement slurry were improved by RSL-100 L latex. The cement paste exhibited better deformation ability and elasticity property than the non-modified cement paste. The exploration of action mechanism between RSL-100 L latex particles and cement grains found that the micro-size particles of RSL-100 L latex could be adsorbed onto the surface of cement grains by electrostatic interaction and Ca2+complex, thereby filling the pores and gaps between the cement grains, which prevent gas channeling and improve the elasticity of cement-based composites.
引文
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[17]郭锦棠,卢海川,刘硕琼,等.新型固井降失水剂HTF-200[J].石油勘探与开发,2013,39(3):359-364.GUO Jintang,LU Haichuan,LIU Shuoqiong,et al.The novel fluid loss additive HTF-200C for oil field cementing[J].Petroleum Exploration and Development,2013,39(3):359-364.
[18]KONG X,PAKUSCH J,JANSEN D,et al.Effect of polymer latexes with cleaned serum on the phase development of hydrating cement pastes[J].Cement&Concrete Research,2016,84:30-40.
[19]KONG X,SHI Z,LU Z.Synthesis of novel polymer nano-particles and their interaction with cement[J].Construction&Building Materials,2014,68(4):434-443.
[20]FENG H,LE H T N,WANG S,et al.Effects of silanes and silane derivatives on cement hydration and mechanical prop-erties of mortars[J].Construction&Building Materials,2016,129:48-60.
[21]LU X,YE Z,ZHANG L,et al.The influence of ethanoldiisopropanolamine on the hydration and mechanical proper-ties of Portland cement[J].Construction&Building Materials,2017,135:484-489.
[22]LU Z,KONG X,ZHANG Q,et al.Influences of styrene-acrylate latexes on cement hydration in oil well cement system at different temperatures[J].Colloids&Surfaces A:Physicochemical&Engineering Aspects,2016,507:46-57.
[23]赵莹,梁骁男,李芹,等.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(8):3124-3127.ZHAO Ying,LIANG Xiaonan,LI Qin,et al.Synthesis of a high temperature retarder LY and the application in low density cement[J].Chemical Industry and Engineering Progress,2015,34(8):3124-3127.
[24]RUI F P P,VALENTE A J M,BURROWS H D.The interaction of long chain sodium carboxylates and sodium dodecyl-sulfate with lead(Ⅱ)ions in aqueous solutions[J].Journal of Colloid&Interface Science C,2014,414:66-72.
[25]ZHANG Y R,KONG X M,LU Z C,et al.Influence of tri-ethanolamine on the hydration product of portlandite in cement paste and the mechanism[J].Cement&Concrete Research,2016,87:64-76.
[26]KONG X,EMMERLING S,PAKUSCH J,et al.Retardation effect of styrene-acrylate copolymer latexes on cement hydration[J].Cement&Concrete Research,2015,75:23-41.
[27]陶俊,倪涛,夏亮亮,等.本体聚合法合成固体聚羧酸减水剂的研究及性能评价[J].化工进展,2017,36(8):3013-3018.TAO Jun,NI Tao,XIA Liangliang,et al.Synthesis of solid polycarboxylate superplasticizer through bulk polymerization and its performance evaluation[J].Chemical Industry and Engineering Progress,2017,36(8):3013-3018.
[28]哈丽丹·买买提,库尔班江·肉孜,王昕,等.丁基磺酸纤维素醚减水剂的制备及其减水机理[J].化工进展,2011,30(4):813-819.HALIDAN Mamat,KVRBANJJAN Rouz,WANG Xin,et al.Synthesis of sulfobutylated cellulose ether and study of its mechanism of water reduction[J].Chemical Industry and Engineering Progress,2011,30(4):813-819.
[2]PERNITES R B,SANTRA A K.Portland cement solutions for ultra-high temperature wellbore applications[J].Cement&Concrete Composites,2016,72:89-103.
[3]LI M,YANG Y,LIU M,et al.Hybrid effect of calcium carbonate whisker and carbon fiber on the mechanical properties and microstructure of oil well cement[J].Construction&Building Materials,2015,93(1):995-1002.
[4]WANG M,WANG R,YAO H,et al.Research on the mechanism of polymer latex modified cement[J].Construction&Building Materials,2016,111:710-718.
[5]ZHANG Y,KO X.Influences of superplasticizer,polymer latexes and asphalt emulsions on the pore structure and impermeability of hardened cementitious materials[J].Construction&Building Materials,2014,53(4):392-402.
[6]李早元,郭小阳,韩林,等.胶乳对水泥石三轴力学形变能力的作用[J].石油学报,2007,28(4):126-129.LI Zaoyuan,GUO Xiaoyang,HAN Lin,et al.Improvement of latex on mechanical deformation capability of cement sheath under triaxial loading condition[J].Acta Petrolei Sinica,2007,28(4):126-129.
[7]代丹,罗宇维,赵琥,等.有机聚合物在油气田防腐固井中的应用及研究进展[J].涂料技术与文摘,2014,35(2):42-45.DAI Dan,LUO Yuwei,ZHAO Hu,et al.Application of organic polymers for anticorrosive cementing slurry in oil-gas field and its research progress[J].Coatings Technology&Abstracts,2014,35(2):42-51.
[8]陈朝伟,蔡永恩.套管-地层系统套管载荷的弹塑性理论分析[J].石油勘探与开发,2009,36(2):242-246.CHEN Zhaowei,CAI Yongen.Study on casing load in a casingstratum system by elastoplastic theory[J].Petroleum Exploration and Development,2009,36(2):242-246.
[9]严思明,杨珅,王富辉,等.新型耐高温油井降失水剂的合成与性能评价[J].石油学报,2016,37(5):672-679.YAN Siming,YANG Shen,WANG Fuhui,et al.Synthesis and performance evaluation of novel high-temperature-resistant fluid loss additive for oil wells[J].Acta Petrolei Sinica,2016,37(5):672-679.
[10]中国国家标准化管理委员会.油井水泥实验方法:GB/T 19139-2012[S].北京:中国标准出版社,2012.Standardization Administration of the People's Republic of China.Testing of well cements:GB/T 19139-2012:[S].Beijing:Standards Press of China,2012.
[11]国家发展和改革委员.油井水泥外加剂评价方法:SY/T 5504-2005[S].北京:中国标准出版社,2005.National Development and Reform Commission.Evaluation method for well cement additives:SY/T 5504-2005[S].Beijing:Standards Press of China,2005.
[12]刘飞,刘学鹏,曾德智.油井水泥浆抗高温抗盐降失水剂合成及性能研究[J].化学研究与应用,2016,28(8):1075-1079.LIU Fei,LIU Xuepeng,ZENG Dezhi.Synthesis and property of new resistant fluid loss additive at high temperature for cement slurry[J].Chemical Research and Application,2016,28(8):1075-1079.
[13]郭锦棠,周贤明,靳建洲,等.抗高温耐盐AMPS/AM/AA降失水剂的合成及其性能表征[J].石油学报,2011,32(3):470-473.GUO Jintang,ZHOU Xianming,JIN Jianzhou,et al.The synthesis and performance characterization of the AMPS/AM/AA terpolymer as a temperature-resistance,salt-tolerance fluid-loss additive[J].Acta Petrolei Sinica,2011,32(3):470-473.
[14]刘崇建,黄柏宗,徐同台,等.油气井注水泥理论与应用[M].北京:石油工业出版社,2001:81-92.LIU Chongjian,HUANG Bozong,XU Tongtai,et al.The theory and application of the primary cementing[M].Beijing:Petroleum Industry Press,2001:81-92.
[15]李早阳,郭小阳,韩林,等.胶乳对水泥石三轴力学形变能力的作用[J].石油学报,2007,28(7):126-129.LI Zaoyuang,GUO Xiaoyang,HAN Lin,et al.Improvement of latex on mechanical deformation capability of cement sheath under triaxiai loading condition[J].Acta Petrolei Sinica,2007,28(7):126-129.
[16]SABINS F,TINSLEY J,SUTTON D.Transition time of cement slurries between the fluid and set states[J].Society of Petroleum Engineers Journal,1982,22(6):875-882.
[17]郭锦棠,卢海川,刘硕琼,等.新型固井降失水剂HTF-200[J].石油勘探与开发,2013,39(3):359-364.GUO Jintang,LU Haichuan,LIU Shuoqiong,et al.The novel fluid loss additive HTF-200C for oil field cementing[J].Petroleum Exploration and Development,2013,39(3):359-364.
[18]KONG X,PAKUSCH J,JANSEN D,et al.Effect of polymer latexes with cleaned serum on the phase development of hydrating cement pastes[J].Cement&Concrete Research,2016,84:30-40.
[19]KONG X,SHI Z,LU Z.Synthesis of novel polymer nano-particles and their interaction with cement[J].Construction&Building Materials,2014,68(4):434-443.
[20]FENG H,LE H T N,WANG S,et al.Effects of silanes and silane derivatives on cement hydration and mechanical prop-erties of mortars[J].Construction&Building Materials,2016,129:48-60.
[21]LU X,YE Z,ZHANG L,et al.The influence of ethanoldiisopropanolamine on the hydration and mechanical proper-ties of Portland cement[J].Construction&Building Materials,2017,135:484-489.
[22]LU Z,KONG X,ZHANG Q,et al.Influences of styrene-acrylate latexes on cement hydration in oil well cement system at different temperatures[J].Colloids&Surfaces A:Physicochemical&Engineering Aspects,2016,507:46-57.
[23]赵莹,梁骁男,李芹,等.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(8):3124-3127.ZHAO Ying,LIANG Xiaonan,LI Qin,et al.Synthesis of a high temperature retarder LY and the application in low density cement[J].Chemical Industry and Engineering Progress,2015,34(8):3124-3127.
[24]RUI F P P,VALENTE A J M,BURROWS H D.The interaction of long chain sodium carboxylates and sodium dodecyl-sulfate with lead(Ⅱ)ions in aqueous solutions[J].Journal of Colloid&Interface Science C,2014,414:66-72.
[25]ZHANG Y R,KONG X M,LU Z C,et al.Influence of tri-ethanolamine on the hydration product of portlandite in cement paste and the mechanism[J].Cement&Concrete Research,2016,87:64-76.
[26]KONG X,EMMERLING S,PAKUSCH J,et al.Retardation effect of styrene-acrylate copolymer latexes on cement hydration[J].Cement&Concrete Research,2015,75:23-41.
[27]陶俊,倪涛,夏亮亮,等.本体聚合法合成固体聚羧酸减水剂的研究及性能评价[J].化工进展,2017,36(8):3013-3018.TAO Jun,NI Tao,XIA Liangliang,et al.Synthesis of solid polycarboxylate superplasticizer through bulk polymerization and its performance evaluation[J].Chemical Industry and Engineering Progress,2017,36(8):3013-3018.
[28]哈丽丹·买买提,库尔班江·肉孜,王昕,等.丁基磺酸纤维素醚减水剂的制备及其减水机理[J].化工进展,2011,30(4):813-819.HALIDAN Mamat,KVRBANJJAN Rouz,WANG Xin,et al.Synthesis of sulfobutylated cellulose ether and study of its mechanism of water reduction[J].Chemical Industry and Engineering Progress,2011,30(4):813-819.