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通过最佳注入量设计和岩心不同剩余油饱和度的降压试验研究,认为表面活性剂应用于低渗油藏降压增注,影响作用效果的因素除地层的孔喉特征、合适的表面活性剂等固有因素外,其主要影响因素是储层的剩余油饱和度。
Through the optimal injection design and pressure drop test of different remaining oil saturations in cores, it is considered that the surfactant is applied to the depressurization and injection increase of low permeability reservoirs, and the factors that affect the effect are pore throat characteristics of strata, suitable surface activity Agents and other inherent factors, the main factor is the remaining reservoir oil saturation.