用二氧化硅片作为模拟岩石，以椭圆偏振法测量癸烷在其表面形成的油膜厚度，通过长度测量法测定水在二氧化硅表面的接触角来判断润湿性及润湿性的变化。亲水的二氧化硅表面难以形成油膜，而疏水的二氧化硅表面能形成较厚而稳定的油膜。疏水或近中性的二氧化硅表面在经碱水作用或吸附表面活性剂后，在特定的条件下能变成弱亲水或亲水，从而将油膜破坏。 The silicon dioxide film was used as a model rock to measure the film thickness of decane formed on the surface by ellipsometry. The contact angle of water on the surface of silica was measured by length measurement to determine the change of wettability and wettability. Hydrophilic silica surface is difficult to form oil film, while the hydrophobic silica surface can form a thick and stable oil film. Hydrophobic or near-neutral silica surfaces can become weakly hydrophilic or hydrophilic under certain conditions after alkali or water-adsorbed surfactants, thereby destroying the oil film.