The Synthesis of and Study on AA/SSS/APO Terpolymer Retarder
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摘要: 以丙烯酸(AA)、对苯乙烯磺酸钠(SSS)和一种含亲水性长链的烯类单体(APO)为原料,过硫酸铵为引发剂,采用水溶液聚合法合成了共聚物缓凝剂BH。通过单因素法确定了单体的物质的量比n(AA):n(SSS):n(APO)为1:1:0.1,单体的质量分数为30%,引发剂加量为4%(质量分数),pH值为5,在80℃下反应14 h;利用红外光谱分析表征了聚合物结构。对加有缓凝剂BH的水泥浆的缓凝性能、温度敏感性、流变参数、游离液及抗压强度等进行了研究。结果表明,BH的使用温度范围广(90~170℃),且对温度不敏感,在170℃加量为2.75%时稠化时间为356 min;可以改善水泥浆的流变性,分散效果良好;对水泥石强度影响较小,有较好的抗盐性能。Abstract: Using acrylic acid (AA), sodium p-styrene sulfonate (SSS) and an alkylene monomer (with long hydrophilic chain) (APO) as raw materials, a terpolymer retarder, BH, was synthesized through water solution polymerization, with ammonium persulfate as initiator. Using single factor analysis, the optimum molar ratio of these monomers was determined to be 1 (AA):1 (SSS):0.1 (APO), the mass fraction of monomer's concentration 30%, the concentration of initiator, 4% (m/m), pH 5, and reaction time at 80℃, 14 hours. The molecular structure of the polymer was characterized by IR spectroscopy. Cement slurries treated with BH were studied on their retarding performance, temperature sensitivity, rheology, free water and compressive strength. It showed that the BH can be used in a wide range of temperatures (90-170℃), and is not sensitive to temperature changes. At BH concentration of 2.75% and 170℃, the BH-treated cement slurry has a thickening time of 356 min. The addition of BH improves the rheology of cement slurry, and has little, if any, effect on the strength of set cement. Cement slurries treated with BH can be used in salt concentrations of up to 16%.
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Key words:
- Oil well cement /
- Retarder /
- Cementing /
- Thickening time
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吴波. 高温深井水泥浆体系在徐闻X1井的应用[J]. 石油钻采工艺,2006,28(3):34-36. Wu Bo.Application of cement system for deep well with high temperature to xuwen X1 well[J].Oil Drilling & Production Technology, 2006,28(3):34-36. 信廷富,张宏军,王建仓,等. 海相油气田超深井完井固井技术[J]. 石油钻采工艺,2008,30(2):14-22. Xin Tingfu,Zhang Hongjun,Wang Jiancang,et al. Completion and cementing technologies for ultra deep wells in marine oil and gas fields[J].Oil Drilling & Production Technology, 2008,30(2):14-22. 余辉. 普光3井深层气固井技术[J]. 断块油气田,2005, 12(6):71-73. Yu Hui.Cement technique of deep gas in puguang 3 well[J]. Fault Block Oil & Gas Field, 2005,12(6):71-73. 李公让,薛玉志,刘宝峰,等. 胜科1井四开超高温高密度钻井液技术[J].钻井液与完井液, 2009,26(2):12-15. Li Gongrang, Xie Yuzhi, Liu Baofeng, et al.High temperature high density drilling fluid technology for the forth interval of well Shengke-1[J]. Drilling fluid & completion fluid, 2009,26(2):12-15. 赵金洲,孙启忠,张桂林. 胜科1井钻井设计与施工[J]. 石油钻探技术,2007,35(6):5-9. Zhao Jinzhou,Sun Qizhong,Zhang Guilin.Design and implementation of well shengke-1[J].Petroleum Drilling Techniques,2007,35(6):5-9. 刘洋,范伟华,赵常青,等. 缓凝剂对水泥浆静胶凝强度过渡时间的影响[J]. 钻井液与完井液,2013,30(6):85-87. Liu Yang,Fan Weihua,Zhao Changqing,et al.Effect of retarder on static gel strength transient time of cement slurry[J]. Drilling Fluid & Completion Fluid,2013,30(6):85-87. 陈大钧,余志勇,张颖,等. 适合长封固段的宽温带缓凝剂的研制[J],钻井液与完井液,2012,29(1):63-65. Chen Dajun, Yu Zhiyong, Zhang Ying, et al. Research on wide temperature zone retarder used in long cementing segment[J]. Drilling Fluid & Completion Fluid, 2012,29(1):63-65. 刘景丽,王野,李淑陶,等.高温油井水泥缓凝剂ZH-8的合成及评价[J]. 钻井液与完井液,2011,28(3):53-55. Liu Jingli,Wang Ye,Li Shutao,et al.synthesis and evaluation of ultra-high temperature retarder ZH-8 for oil well cement[J].Drilling Fluid & Completion Fluid,2011, 28(3):53-55. SY/T 5504.1-2005中华人民共和国石油天然气行业标准[S]. 国家发展和改革委员会,2005. SY/T 5504.1-2005 people's republic of china oil and gas industry standard[S].National Development and Reform Commission,2005. -
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