In this study, graphene oxide (GO) was prepared by the improved Hummers method, and a synergistically stabilized emulsion of GO and emulsifier was formulated. The best emulsion formula obtained by Response Surface Methodology consists of 1.39‰ GO, and 2.92‰ OP-10; the water-oil ratio is 4:6, achieving an emulsion index of 92.83%. The emulsion still maintained good stability under high temperature and high salt conditions, meeting the environmental requirements of medium and low permeability reservoirs. For injected water flooding, emulsion flooding could increase the oil recovery by 15.41%.

中文翻译：

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石墨烯基乳液作为驱油剂的研究

本研究采用改进的 Hummers 法制备氧化石墨烯 (GO)，并配制成 GO 与乳化剂协同稳定的乳液。响应面法得到的最佳乳液配方为 1.39‰ GO 和 2.92‰ OP-10；水油比为4：6，乳化指数为92.83%。该乳液在高温高盐条件下仍保持良好的稳定性，满足中低渗透油藏的环境要求。对于注入水驱，乳液驱可提高采收率15.41%。