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 / interfacial activity of seven series of anionic Gemini surfactants with different hydrophobic chains and different linker lengths was studied. Their surface tension and critical micelle concentration indicate that they have good surface activity. They have a very good resistance to monovalent, divalent salts and are still soluble in more than 20% NaCl water. The interfacial tension between the crude oil and the active agent solution prepared from the high salinity Zhongyuan oilfield brine can reach ultra-low, indicating that they can be applied to ultra-high salinity reservoir to enhance oil recovery.