低渗储层渗吸剂界面性能与组分分离  

Interfacial properties and component separation of imbibition agent in low permeability reservoir

作　　者：陶俞帆 丛苏男[2,3] 彭宝亮[3] 刘卫东[2,3] 马良 TAO Yufan;CONG Sunan;PENG Baoliang;LIU Weidong;MA Liang(School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100048,China;Institute of Seepage Fluid Mechanics,Chinese Academy of Sciences,Langfang 065000,China;Research Institute of Petroleum Exploration and Production,PetroChina,Beijing 100083,China)

机构地区：[1]中国科学院大学工程科学学院,北京100048 [2]中国科学院渗流流体力学研究所,河北廊坊065000 [3]中国石油勘探开发研究院,北京100083

出　　处：《应用化工》2024年第7期1571-1574,共4页Applied Chemical Industry

基　　金：国家自然科学基金(22008263)。

摘　　要：对石油磺酸盐WPS-D和十八烷基二甲基甜菜碱复配的渗吸剂进行界面张力测试,得出0.3%浓度8∶2比例下的渗吸剂达到超低界面张力(<1.0×10^(-3)mN/m),0.4%和0.5%浓度比例为9∶1的体系接近超低界面张力。采用制备色谱与质谱相结合,对石油磺酸盐WPS-D进行组分分离,并结合界面张力测试结果,考察不同组分的界面活性。结果表明,石油磺酸盐分离出5种结构组成差异较大的不同组分;以重烷基苯磺酸盐为主,C_(17)~C_(19)烷基苯磺酸盐达到超低界面张力并维持,C_(18)~C_(24)的烷基苯磺酸盐接近超低界面张力后反弹,得出提供界面活性的主要组分是C_(17)~C_(19)磺酸盐。The interfacial tension test of the imbibition compound of petroleum sulfonate WPS-D and dodecyl dimethyl betaine showed that the imbibition compound with 0.3%concentration of 8∶2 easily reached the ultra-low interfacial tension(<1.0×10^(-3)mN/m),and the systems with 0.4%and 0.5%concentration of 9∶1 approached the ultra-low interfacial tension.The components of petroleum sulfonate WPS-D were separated by preparative chromatography and mass spectrometry,and the interfacial activities of different components were investigated by interfacial tension test.The results showed that 5 different components with different structure and composition were separated by petroleum sulfonate.C_(17)~C_(19)Alkyl benzene sulfonates reached ultra-low interfacial tension and maintained,and C_(18)~C_(24)alkyl benzene sulfonates rebounded after close to ultra-low interfacial tension.It is concluded that the main component providing interfacial activity is C_(17)~C_(19)sulfonates.

关 键 词：石油磺酸盐 渗吸剂 界面张力 制备液相色谱 

分 类 号：TQ13[化学工程—无机化工] TE35[石油与天然气工程—油气田开发工程] TE39