驱油用烷基苯磺酸盐表面活性剂

Alkyl Benzene Sulfonate Surfactants for Oil Flooding

在表面活性剂与低酸值原油定量匹配关系理论研究基础上,以重烷基苯为原料研制出了适合大庆油田的驱油用烷基苯磺酸盐表面活性剂,创建重烷基苯原料、产品的分析方法、精制处理技术、宽馏分烷基苯原料的专有磺化技术,中和复配一体化技术,实现规模化生产。现场应用表明,该产品性能与国外产品性能相当,可比水驱采收率高20个百分点以上,促进了大庆油田三元复合驱技术的发展,提高了中国石油集团三次采油的核心竞争力。

On the basis of the theoretical research on the quantitative matching relationship between surfactants and low acid value crude oil,the alkyl benzene sulfonates surfactants have been developed suitable for oil displacement in Daqing Oilfield by using heavy alkyl benzene as raw material,and created the analysis method for heavy alkyl benzene raw materials and products,refining processing techniques,special sulfonated technology for wide-fraction alkyl benzene raw materials,and the integrated technology for neutralization and combination,the new surfactant has realized the large-scale production.The result of field application showed that the properties of the product are the same as those of foreign products,its recovery rate was 20%higher than that of water drive oil method,which promoted the development of ASP flooding in Daqing Oilfield,and improved the core competitiveness of CNPC on tertiary oil recovery.