引用本文:高建波,王乔怡如. 高界面活性微乳液型助排剂AO4的制备及效果评价[J]. 石油与天然气化工, 2016, 45(3): 67-71.
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高界面活性微乳液型助排剂AO4的制备及效果评价
高建波1,王乔怡如2
1.中国石油大学(华东)石油工程学院;2.中国石油大学(北京)
摘要:
以非离子型表面活性剂AEO-9为主要原料,通过增溶法配制得到微乳液,利用微乳液界面性能为主要指标筛选出配方,制得AO-4,并进行稳定性及助排率评价。结果 表明,组成为0.5%(w)均相微乳液+0.02%(w)氟表面活性剂(其中均相微乳液的组成为:w(AEO-9)∶w(正丁醇)∶w(煤油)∶w(水)=31%∶13%∶11%∶45%)的体系,可以形成稳定的微乳液型助排剂,其表面张力为23.22 mN/m,界面张力为0.12 mN/m(与煤油),助排率达到83.26%,具有较好的应用前景。 
关键词:  压裂  均相微乳液  界面性能  稳定性  助排率 
DOI：10.3969/j.issn.1007-3426.2016.03.014
分类号:TE357.2
基金项目:国家重大专项“水平井多级分段压裂排采技术研究”(P12125)。
Preparation and effect assessment of new microemulsion cleanup agent AO-4 with high interface activity
Gao Jianbo1, Wangqiao Yiru2
(1. Petroleum Engineer Department, China University of Petroleum (East China), Qingdao 266580, China;2. Petroleum(Beijing),Beijing 102200, China)
Abstract:
The homogeneous microemulsion was prepared by solubilization method with non-ionic surfactant AEO-9 as a main raw material. Interface performance of microemulsion was used as main indicators to select formula, and evaluate its stability and discharge rate. The results showed that the system is composed of 0.5% homogeneous microemulsion (AEO-9∶ n-butanol∶ kerosene∶ water = 31%∶ 13%∶11%∶45 % (mass fraction ratio))+0.02% fluoro surfactant, which is a stable microemulsion type cleanup agent, and its surface tension is 23.22 mN/m, interfacial tension is 0.12 mN/m (with kerosene), cleanup rate is 83.26%, and it has a good prospect.
Key words:  fracture  homogeneous microemulsion  interface activity  stability  cleanup rate