高温缓凝剂AMCT的合成及其性能评价
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摘要
以甲基丙烯磺酸钠(MAS)、含亲水长链的烯类单体(CL)、丙烯酸(AA)和烯丙基三甲基氯化铵(TMAAC)为原料,合成了一种高温缓凝剂(AMCT)。通过正交实验得到的最佳合成条件为:n(AA)∶n(MAS)∶n(CL)∶n(TMAAC)=4.0∶1.0∶0.15∶0.10,引发剂(NH4)2S2O8加量为单体总质量的4%,单体质量浓度300 g/L,反应温度85℃,反应时间24 h。利用IR和~1HNMR表征了AMCT的结构。采用TGA考察了AMCT的耐温性能。以稠化时间考察了AMCT的温度敏感性和加量敏感性。通过AMCT对水泥浆流变性能的影响说明其分散性和稳定性。通过XRD、EDTA滴定和低场核磁等方法分析了AMCT的缓凝机理。结果表明:AMCT的分解温度为255℃;AMCT的温度敏感性和加量敏感性均符合行业标准要求;AMCT对水泥浆分散性和稳定性无不良影响;AMCT的缓凝机理为自匹配吸附形成包覆层控制水化作用、抑制晶体生长作用和络合作用。
A high temperature retarder( AMCT) was synthesized by using sodium methylallyl sulfonate( MAS),hydrophilic long-chain alkene monomer( CL),acrylic acid( AA) and allyltrimethylammonium chloride( TMAAC) as raw materials. The optimized reaction conditions for synthesizing AMCT were as followed: n( AA) ∶ n( MAS) ∶ n( CL) ∶ n( TMAAC) = 4 ∶ 1 ∶ 0. 15 ∶ 0. 1,the amount of initiator[( NH_4)_2S_2O_8]was 4% of total monomers mass,and the mass concentration of monomers were 300g/L,at 85 ℃ for 24 h. The structure of the sample was characterized by IR and1 HNMR. The temperature resistance was evaluated by TGA. In addition,the temperature sensibility and quantity addition sensibility were studied according to thickening time,and the influence of AMCT on rheology behavior of cement slurry was investigated to illustrate the dispersity and stability. The retarding mechanisms were confirmed by XRD,EDTA titration,and low-field nuclear magnetic resonance spectroscopy techniques. The results indicated that the decomposition temperature of AMCT was 255℃,and the temperature sensibility and dosage quantity addition sensibility of AMCT were accorded with the industrial standard. Moreover,AMCT exhibited excellent effects on the dispersity and stability of cement slurry. The retarding mechanisms of AMCT to cement slurry were attributed to self-matching ads orption mechanisms. And the coating layers could be formed,which were advantageous to the inhibition of crystal growth and complexation.
A high temperature retarder( AMCT) was synthesized by using sodium methylallyl sulfonate( MAS),hydrophilic long-chain alkene monomer( CL),acrylic acid( AA) and allyltrimethylammonium chloride( TMAAC) as raw materials. The optimized reaction conditions for synthesizing AMCT were as followed: n( AA) ∶ n( MAS) ∶ n( CL) ∶ n( TMAAC) = 4 ∶ 1 ∶ 0. 15 ∶ 0. 1,the amount of initiator[( NH_4)_2S_2O_8]was 4% of total monomers mass,and the mass concentration of monomers were 300g/L,at 85 ℃ for 24 h. The structure of the sample was characterized by IR and1 HNMR. The temperature resistance was evaluated by TGA. In addition,the temperature sensibility and quantity addition sensibility were studied according to thickening time,and the influence of AMCT on rheology behavior of cement slurry was investigated to illustrate the dispersity and stability. The retarding mechanisms were confirmed by XRD,EDTA titration,and low-field nuclear magnetic resonance spectroscopy techniques. The results indicated that the decomposition temperature of AMCT was 255℃,and the temperature sensibility and dosage quantity addition sensibility of AMCT were accorded with the industrial standard. Moreover,AMCT exhibited excellent effects on the dispersity and stability of cement slurry. The retarding mechanisms of AMCT to cement slurry were attributed to self-matching ads orption mechanisms. And the coating layers could be formed,which were advantageous to the inhibition of crystal growth and complexation.
引文
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[18]GB/T 19139—2012.油井水泥试验方法[S].
[19]SY/T 5504.1—2005.油井水泥外加剂评价方法第1部分:缓凝剂[S].
[20]Zhang Rui(张瑞),Wang Jixing(王吉星),Li De-ning(李德宁),et al.Effect of retarder of wj-1 on cement slurry at early hydration stage[J].Bulletin of the Chinese Ceramic Society(硅酸盐通报),2015,34(11):3187-3191.
[2]Hu Jingdong(胡景东),Gong Zhimin(龚志敏),Wang Zengshun(王增顺).Drilling fluid technology of ultra-deep well niudong 1in bohai gulf[J].DFCF(钻井液与完井液),2012,29(3):29-32.
[3]Chen Haodong(陈浩东),Huang Yi(黄熠),Xiang Xiong(向雄).High temperature high density drilling fluid technology for the fifth interval of well ldx-1[J].Gd Chem(广东化工),2015,42(307):60-61.
[4]Bray W S.Method of cementing using polymeric retarder:US8096359[P].2012-01-17.
[5]Yue Jiaping(岳家平),Xu Xiang(徐翔),Li Zaoyuan(李早元),et al.Research on high temperature and large temperature difference cement slurry system[J].DFCF(钻井液与完井液),2012,29(2):59-62.
[6]Zhao Ying(赵莹),Liang Xiaonan(梁骁男),Li Qin(李芹),et al.Synthesis of a high temperature retarderly and the application in low density cement[J].Chemical Industry and Engineering Progress(化工进展),2015,34(8):3124-3127,3141.
[7]Dong Wenbo(董文博),Zhuang Jia(庄稼),Ma Yanlong(马彦龙),et al.Terpolymerization and retardation of a high temperature cement retarder poly 2-acrylamido-2-methyl propane sulfonic acid/sodium styrene sulfonate/itaconic acid for oil well[J].Journal of the Chinese Ceramic Society(硅酸盐学报),2012,40(5):703-709.
[8]Zhang Rui(张瑞),Huo Jinhua(霍锦华),Chen Dajun(陈大钧),et al.Synthesis and characterization of retarder HJH-1 used in high temperature oil well cement[J].Fine Chemicals(精细化工),2015,32(9):1061-1066.
[9]Liu Jianjun(刘建军).Synthesis of polymer additives and their application in oil well cement[D].Tianjin University,2012:48.
[10]Lu Ya(卢娅),Li Ming(李明),Yang Yan(杨燕),et al.Synthesis and performance evaluation of cement retardant aid for oil well[J].Petroleum Drilling Technique(石油钻探技术),2015,43(6):40-44.
[11]Zhu Bing(朱兵),Nie Yuzhi(聂育志),Qiu Zailei(邱在磊),et al.Research on fluid loss additives of amps/dmam/aa in well cementing[J].Petroleum Drilling Technique(石油钻探技术),2014,24(6):40-44.
[12]Qiu Zhengsong(邱正松),Mao Hui(毛惠),Xie Binqiang(谢彬强),et al.Synthsis and filed application of high temperature resistant viscosifying agent for drilling fluid[J].Acta Petrolei Sinica(石油学报),2015,(1):106-113.
[13]Yan Siming(严思明),Yang Shengyue(杨圣月),Zhang Hongdan(张红丹),et al.Synthesis and performance of retarder hl-1 forhigh temperature cementing[J].Oilfield Chemistry(油田化学),2015,32(3):317-321.
[14]Yan Siming(严思明),Li Xingwu(李省吾),Gao Jin(高金),et al.The synthesis andstudy of aa/sss/apo terpolymer retarder[J].DFCF(钻井液与完井液),2015,32(1):81-83.
[15]Zhu Xueyou(竹学友).Multiple copolymer amps fluid loss agent resistance temperature effect analysis[J].Western Exploration Engineering(西部探矿工程),2016,8:94-97.
[16]Liu Chongjian(刘崇建),Huang Baizong(黄柏宗),Xu Tongtai(徐同台),et al.油气井注水泥理论与应用[M].北京:石油工业出版社,2001.
[17]Bensted J,Barnes P.水泥的结构和性能[M].廖欣,译.2版.北京:化学工业出版社,2008.
[18]GB/T 19139—2012.油井水泥试验方法[S].
[19]SY/T 5504.1—2005.油井水泥外加剂评价方法第1部分:缓凝剂[S].
[20]Zhang Rui(张瑞),Wang Jixing(王吉星),Li De-ning(李德宁),et al.Effect of retarder of wj-1 on cement slurry at early hydration stage[J].Bulletin of the Chinese Ceramic Society(硅酸盐通报),2015,34(11):3187-3191.