文章摘要
端羧基改性聚酰胺-胺的合成及其阻垢性能的研究——以长庆油田花子坪区块为例
Synthesis and Performance Evaluation of PAMAM-COONa:A Case Study of Block Huaziping of Changqing Oilfield
  
DOI:10.19346/j.cnki.1000-4092.2017.02.031
中文关键词: 端羧基聚酰胺-胺,阻垢剂,碳酸钙垢,硫酸钙垢
英文关键词: PAMAM-COONa  scale inhibitor  calcium carbonate scale  calcium sulfate scale
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作者单位
苏高申1,2,罗跃1,李凡2,范春林3,詹泽丞1,刘磊4 1.长江大学化学与环境工程学院湖北荆州4340232. 长江大学石油工程学院湖北武汉4301003. 中国石油长庆油田分公司第四采油厂陕西靖边7185004. 中海油田服务股份有限公司油田生产事业部天津300450 
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中文摘要:
      为解决长庆油田花子坪区块结CaCO3、CaSO4垢的严重问题,采用氯乙酸为端基改性剂对1.0 代和2.0 代聚酰胺-胺树状聚合物进行端羧基改性合成了性能优良的阻垢剂1.0G PAMAM-COONa 和2.0G PAMAM-COONa,通过红外光谱(FTIR)、元素分析等方法对其结构进行表征,考察了合成阻垢剂对CaCO3、CaSO4的阻垢性能及复配的阻垢剂PNF-2.0G(阻垢剂PNF、2.0G PAMAM-COONa 质量比1∶1)对长庆油田化子坪的采出水/现场注入水混配水(质量比1∶1)的阻垢性能,并进行了现场试验。研究结果表明,60℃下,PAMAM-COONa 的阻垢效果比聚酰胺-胺(PAMAM)的好、2.0G PAMAM-COONa 的阻垢性能比1.0G PAMAM-COONa 的效果好,在加药量为20 mg/L 时,2.0G PAMAM-COONa 对CaCO3、CaSO4 的阻垢率为95.64%、92.35%,1.0G PAMAM-COONa 对CaCO3、CaSO4的阻垢率为82.25%、89.36%。在加药量为20 mg/L 时,对于97-42 采出水/现场注入水的混配水,2.0G PAMAM-COONa 和PNF 单独使用时的阻垢率分别为75.53%和60.5%,而复配阻垢剂的阻垢率则高达95.56%;对于化100-45 采出水/现场注入水的混配水,2.0G PAMAM-COONa 和PNF单独使用时的阻垢率分别为38.5%和49.5%,而复配阻垢剂的阻垢率高达98.91%。经现场试验验证,该复配阻垢剂能起到优良的阻垢效果。图10表4 参14
英文摘要:
      In order to resolve the CaCO3、CaSO4 scaling problem of Huaziping Block of Changqing oilfield,The scale inhibitors of 1.0G PAMAM-COONa and 2.0G PAMAM-COONa were obtained by the reaction between polyamidoamine (PAMAM) and chloroacetic acid,and then the molecular structures was established by FT-IR and elemental analysis. The scale inhibition performance of 1.0G PAMAM-COONa and 2.0G PAMAM-COONa tor CaCO3、CaSO4 was studied,and the scale inhibition performance of the complex scale inhibitor PNF-2.0G ,composed of the scale inhibitor PNF and 2.0G PAMAM-COONa at mass ratio of 1∶1,to the blend water of produced water Block Huaziping and the injection water at mass ratio of 1∶1 was studied. In addition,the field test was conducted. The results showed that the scale inhibition of PAMAM-COONa to CaCO3 and CaSO4 was better than that of PAMAM,and the scale inhibition of 2.0G PAMAM-COONa to CaCO3 and CaSO4 was better than that of 1.0G PAMAM-COONa at the temperature of 60℃ . At the dosage of 20 mg/L,the scale inhibition rate of 2.0G PAMAM-COONa to CaCO3、CaSO4 was about 95.64%,92.35% ,respectively,while the scale inhibition rate of 1.0G PAMAM-COONa to CaCO3、 CaSO4 was about 82.25%,89.36%,respectively. As for the blend water of the produced water of 97-42 well and the injection water, when the addition of was 20 mg/L,and the scale inhibition scale of the 2.0G PAMAM-COONa and PNF was 75.53% and 60.5%, respectively,while that of the PNF-2.0G was 95.56%. As for the blend water of the produced water of 100-45 well and the injection water,the scale inhibition rate of 2.0G PAMAM-COONa and PNF was 38.5% and49.5%,respectively,while that of the PNF-2.0G was 98.91%. The field test results showed that the compound scale inhibitor PNF-2.0G played an excellent scale inhibition effect.
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