| As using surfactant for in Daqing oil field ,active composition made in American belongs in anion alkybenzene sulfonates ,and is special surfacatant system.Through laboratory reaearch and pilot application ,it is verifield that ORS-41 is one of the most effecitive surfactant for TRO.At present,Number of surfactant made in China are over 1000 ,but they are applied in textile ,chemical ,paper ,food ,medicine , etc.For TRO there are a little surfacatant whose effect are not good .In this paper ,content of sulfonates and composition of alkyl are decided through right design ;under control reaction conditions different alkylbenzene sulfanated aresynthesized;Polyreaction catalyst is developed,non-straight high carbon olefine are made through C9-C12 Polyreaction technology;clear comjposition alkylbenzene is sulfanated in falling-film reactor by SO3,product can be adjusted ,recipe of the surfacate can be used for super –lowe interfacialension with Daqing oil 10-3-10-4 mN/m,and stability is good too.According to method issued by Daqing Develop and explore Research institute ,EOR is over 20% in natural core.A surfactant system is researched approriately for TRO in Daqing oil field .It is important for sustainable Development in Daqing oil field that surfactant system for TRO is developed.Passing the indoors research to experiment the enunciation with the mine, ASP can compare the water-drive increases to adopt to accept rate 20%( OOIP) above. Surfactant and compound recipe technology of the surfacate is key in it. In this thesis , using surfactant that the alkybenzene sulfonates produced by Hangzhou small set is studed through the raw materials of 200SN,350SN based oil in Daqing refine-company to reply the super-low interfacial tension of the weak alkali system through reciping . Compound recipe may improve EOR of thrice extract oil.
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