Evaluation of reservoir core samples and nano branched polymer for enhanced oil recovery (EOR)

目前常用的驱油剂采用的是合成聚合物，但随着温度和矿化度的升高，聚合物的粘度急剧下降。本研究的重点是将支链大分子与线性疏水缔合聚合物结合，从而提高聚合物水溶液的抗剪切性能、耐温性和耐盐性。我们提出了一种超支枝状聚合物，因为与线性聚合物相比，它具有成本相对较低、功能基团多、覆盖面积大和生态友好等独特性质。这将是一种用于采油的新型聚合物表面活性剂。

Currently, the commonly used oil displacement agent utilizes synthetic polymers, the viscosity of which, however, descends drastically with the increase of temperature and salinity. This research focuses on combining branched macromolecules with linear hydrophobically associating polymer that can improve the anti-shearing performance, temperature tolerance, and salt tolerance of the polymer aqueous solution. We propose a hyperbranched dendritic shape polymer because of unique properties such as relatively low cost, multiple functional groups, a large area of coverage and eco-friendliness compared to linear polymers. This will be one of a novel polymeric surfactant for oil recovery application.