| 摘要: |
| 以2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、N,N-二甲基丙烯酰胺(DMAM)、富马酸(FA)和乙烯基吡咯烷酮(NVP)为原料,以过硫酸钠-亚硫酸钠为引发剂,进行了四元共聚物的合成研究。采用正交实验获得了反应温度为50℃、引发剂用量为0.12%、pH值为7的共聚合成条件。通过红外光谱、核磁共振氢谱表征、热重分析、Zeta电位测试和扫描电镜观察,证明合成了AMPS/DMAM/FA/NVP四元共聚物,该共聚物的分解温度为320℃左右,在180℃下具有良好的降失水性能,能将水泥浆的失水量控制在60mL以下。 |
| 关键词: 四元共聚物 降失水剂 油井水泥 耐高温性能 |
| DOI： |
| 分类号:TE256.7 |
| 基金项目: |
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| Preparation and Properties of a New Fluid Loss Additive for High Temperature Cement Slurry |
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Feng Li, Zhuang Jia, Lei Futao
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School of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,Sichuan,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp616～619,2011(ISSN 1007-3426,IN CHINESE
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| Abstract: |
| Used persulfate-sodium sulfite as the initiator,the synthesis of a quaternary copolymer from 2-acry-lamide-2-methyl propyl sulfonic acid(AMPS),N,N-dimethyl acrylamide(DMAM),fumaric acid(FA),vinyl pyrrolidone(NVP) was studied.By orth-ogonal experimental design,the optimal reaction conditions were obtained as following: reaction temperature of 50℃,initiator amount of 0.12%(wt) and pH7.The product’s structure was verified by Fourier transform infrared spectrum(FTIR),hydrogen nuclear magnetic resonance spectrum(1H-NMR),thermogravimetry(TG)analysis,Zeta potentiostatic test and SEM observation,meanwhile found that the decomposition temperature is 320℃ or so.At 180℃,it can control the water loss of cement slurry to 60mL within the API,also discussed the mechanism of reduce water loss of the polymer. |
| Key words: quaternary copolymer fluid loss additive oil well cement high temperature resistance |
