摘要
研究了疏水链长度不同和联接基长度不同的7种系列阴离子Gemini表面活性剂的表/界面活性。它们的表面张力和临界胶束浓度表明它们有很好的表面活性。它们有非常好的抗一价、二价盐的能力,在20%以上的NaCl盐水中仍能溶解。用高矿化度的中原油田盐水配制的活性剂溶液与原油间的界面张力能达到超低,表明它们可应用于特高矿化度油藏提高采收率。
The surface/interface activities of 7 kinds of anionic Gemini surfactant with different length of hydrophobic chain and linking group were studied. The data of their surface tension and critical micelle concentration indicated that their surface activities were excellent. And they could even dissolve in the solution of NaCl with concentration of above 20% as they possessed good endurance to salt with a valency of one or two. The interracial tension between crude oil and aqueous surfactant solution prepared based on brine with high mineralization degree from Zhongyuan Oilfield could reach super-low margin, it was indicated that the surfactant could be used in oil deposit with super-high mineralization degree to improve the oil recovery.
出处
《精细与专用化学品》
CAS
2006年第B11期50-54,共5页
Fine and Specialty Chemicals
