Polymer microspheres offer fascinating prospects on oil recovery due to their distinctive swelling performance and deformation ability. However, because of the influence of emulsifiers in the product, the present polymer microspheres synthesized by traditional polymerization methods can greatly reduce the effect of oil displacement. “Water-in-water” (W/W) emulsion, an emulsion by using water phase as solvent and water-soluble macromolecular polymer as dispersant, can avoid contamination of oil phase and emulsifier. Composed of nano-SiO₂ and polymer, the organic-inorganic microsphere possessed remarkably dispersity, elasticity, swelling performance, deformation ability and migration ability. To verify the validity of the products, many tests were carried out, such as Field emission scanning electron microscope (SEM), FT-IR spectra, thermogravimetry (TGA), Energy-dispersive Xray Spectroscopy (EDS), contact Angle and dynamic light scattering (DLS), etc. Dependent on excellent swelling performance and elasticity, the microsphere promised its great potentials for plugging. Particularly, based on its feature of size changing with temperature, it must have great attraction and application value in temperature-controlled size of organic-inorganic microsphere.

聚合物微球具有独特的溶胀性能和变形能力，因此在采油方面具有令人着迷的前景。然而，由于乳化剂在产物中的影响，通过传统聚合方法合成的本发明聚合物微球可以大大降低驱油效果。“水包水”（W / W）乳液是一种以水相为溶剂，水溶性高分子聚合物为分散剂的乳液，可以避免油相和乳化剂的污染。由纳米SiO _2组成和聚合物相比，有机无机微球具有明显的分散性，弹性，溶胀性能，变形能力和迁移能力。为了验证产品的有效性，进行了许多测试，例如场发射扫描电子显微镜（SEM），FT-IR光谱，热重分析（TGA），能量色散X射线光谱（EDS），接触角和动态光散射（DLS）等。根据出色的溶胀性能和弹性，微球承诺了巨大的堵塞潜力。特别是，由于其尺寸随温度变化的特征，它必须在有机无机微球的温度控制尺寸中具有很大的吸引力和应用价值。