A thermoresponsive system of a nanoemulsion-based gel with favorable characteristics to enhanced oil recovery (EOR) application is presented. A full factorial design study with different formulations of thermosensitive nanoemulsion-based gels was performed to assess the influence of the oil chain length, concentration of polyethylene glycol (PEG 400) and concentration of oil on the rheological behavior of the system. A formulation with low viscosity at room temperature and high viscosity at the temperature of the oil extraction well was presented. Hexane (6-carbon chain), capric acid (10-carbon chain) and isopropyl myristate (17-carbon chain) were used in concentrations of 5%, 10%, 15% and 20% wt%, also varying the concentration of PEG 400 in 0%, 3%, 6% and 9% wt%. The thermosensitive polymer used was a mixture of Pluronic^® F-127 and Pluronic^® F-68 6:1 wt% at 4.7% concentration. The surfactants used were Tween 80 and Span 80 (HLB = 13) at 20%. The formulation containing 20% isopropyl myristate (IPM) without the addition of PEG 400 showed a better response, with an increase in viscosity of more than 38 times in relation to its viscosity at 25 °C, and the maximum viscosity was reached at 53 °C. This is a promising formulation for EOR technology.

提出了基于纳米乳液的凝胶的热响应系统，其具有对提高采油率（EOR）应用有利的特性。对热敏性纳米乳液基凝胶的不同配方进行了全因子设计研究，以评估油链长度，聚乙二醇（PEG 400）浓度和油浓度对系统流变行为的影响。提出了在室温下具有低粘度而在采油井的温度下具有高粘度的制剂。使用己烷（6-碳链），癸酸（10-碳链）和肉豆蔻酸异丙酯（17-碳链）时，其浓度分别为5％，10％，15％和20％wt％，也改变了PEG的浓度400的0％，3％，6％和9％wt％。使用的热敏聚合物是Pluronic的混合物^® F-127和Pluronic ^® F-68 6：1％（重量）在4.7％的浓度。所使用的表面活性剂为20％的Tween 80和Span 80（HLB = 13）。不含PEG 400的含20％肉豆蔻酸异丙酯（IPM）的配方表现出更好的响应，相对于其在25°C时的粘度，其粘度增加了38倍以上，并且在53°C时达到了最大粘度C。这是提高采收率技术的有希望的公式。