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三次采油用烷基苯磺酸盐弱碱体系的研究
Authors
周桂英
曲景奎
朱友益
聂丽君
Publication date
1 January 2006
Publisher
Abstract
通过对抚顺洗涤剂化学厂的烷基苯进行切割处理,合成了平均烷基碳链长度为C14、C17、C20、C23,的烷基苯磺酸钠。经过复配,在弱碱(Na2CO3)条件下研究了大庆三厂油/水的界面张力、稳定性和驱油效率。结果表明:以平均烷基碳链长度在17左右的烷基苯磺酸盐为主剂进行复配后,得到的样品可以在弱碱条件下,使大庆三厂的油/水界面张力在较宽的碱质量分数w(Na2CO3)=0.2%~0.8%及表面活性剂质量分数w(表面活性剂):0.025%-0.2%条件下维持在超低水平(10^-3mN/m),并能保持长期稳定,驱油效率比水驱提高20%以上
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Last time updated on 11/04/2021