Effects of hot nanofluid injection on oil recovery from a model porous medium

Samine Rostami, Majid Ahmadlouydarab* (Corresponding Author), Amin Sharifi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In current experimental study a viscous fluid recovery from a transparent two-dimensional porous medium by injecting a fluid was studied. The base oil was used as displaced fluid and porous medium was initially saturated with the base oil. Water, sodium dodecyl sulfate (SDS) solution, and TiO2 nanofluid were used as displacing fluids. Reduction in water injection flowrate from 0.6mL/min to 0.08mL/min, the base oil recovery increased by 22.5%. Also, by increasing the injection temperature from 5 °C to 90 °C, 16.5% more base oil recovery happened. Oil recovery increased by 4.6%, and 5.2% for the SDS solution, and TiO2 nanofluid. Adding surfactant reduces the interfacial tension between the base oil and the displacing fluid. Besides, presence of nanoparticles reduces interfacial tension and changes wettability of the porous medium. It was observed that the presence of nanoparticles in the displacing fluid always increase base oil recovery compared with water flooding results. However, by comparing the results of 0.1wt% TiO2 nanofluid injection with 0.05wt% TiO2 nanofluid, it was concluded that an increase in nanoparticles concentration does not always improve oil recovery efficiency. In hot fluid injection with a flowrate of 0.2mL/min before the breakthrough time, the hot water injection performed better than the hot nanofluid in base oil recovery. After the breakthrough time, the hot nanofluid had a higher efficiency than the hot water. Finally, by adding nanoparticles into the hot SDS solution, oil recovery increased by 7.9%.
Original languageEnglish
Pages (from-to)451-461
Number of pages10
JournalChemical Engineering Research & Design
Early online date17 Aug 2022
Publication statusPublished - Oct 2022


  • Hot nanofluid injection
  • TiO
  • Porous medium
  • Enhanced oil recovery
  • Base oil
  • water


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