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

目前常用的驱油剂都是合成聚合物，但其粘度随温度和矿化度的升高而急剧下降。本研究将支化大分子与线性疏水缔合聚合物相结合，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化的树枝状聚合物，因为独特的性能，如相对较低的成本，多官能团，大面积的覆盖范围和生态友好性相比，线性聚合物。这将是一种新型的高分子表面活性剂用于采油应用。

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.