Comparative investigation of nanoparticles effect for enhanced oil recovery - experimental and mechanistic study

Abstract Nanofluid flooding has become one of the advantageous enhanced oil recovery (EOR) techniques due to transcendental property nanoparticle. Nanoparticles with various morphology presents different effects and mechanisms EOR. To provide some guidance on selection nanomaterials for flooding, 4 kinds nanomaterials, including silicon dioxide (SiO 2 ), magnesium oxide (MgO), graphene (GO) molybdenum disulfide (MoS are chosen serve as research objects in study. In lab, four were systematically characterized by scanning electron microscope (SEM) tests. Moreover, nanofluid experiments further conducted explore relationship between Results show that SiO was spherical structure, MgO blocky while GO MoS both sheet structure. All have similar spatial dimensions. Flooding revealed enable improves approximately 11.53 %, followed 10 twice much MgO. From results, it can be inferred materials only realize “point-to-surface” contact at multiphase interfaces, achieve “surface-to-surface” a higher interfacial activity. This paper is first focus which contributes optimization high-efficiency displacement.