Loading...

Aspects of alkaline flooding: Oil recovery improvement and displacement mechanisms

Sedaghat, M. H ; Sharif University of Technology | 2013

669 Viewed
  1. Type of Document: Article
  2. DOI: 10.5829/idosi.mejsr.2013.18.2.12440
  3. Publisher: 2013
  4. Abstract:
  5. Alkaline flooding is one of the newest chemical enhanced oil recovery (EOR) methods. Alkaline generates in situ surfactants when in reacts with acid content of the oil. This economic surfactant generated in oil-water interface, reduces interfacial tension (IFT) significantly that leads to increase in oil recovery by extracting oil from tiny pores. In this study, three alkaline i.e. Na2CO3, NaOH and KOH in various concentrations were flooded in a glassy micromodel to detect displacement mechanisms and compare oil recovery. According to the results, increase in alkaline concentration leads to increase in recovery. However, in this case, alkaline type does not play a significant role. In addition, the microscopic pictures showed that water droplet mechanism, emulsification, viscosity intensification and diffusion are playing significant roles during alkaline flooding
  6. Keywords:
  7. Alkaline Flooding ; Chemical EOR ; Displacement Mechanism ; Experimental ; Sweep Efficiency
  8. Source: Middle East Journal of Scientific Research ; Volume 18, Issue 2 , 2013 , Pages 258-263 ; 19909233 (ISSN)
  9. URL: http://www.idosi.org/mejsr/mejsr18%282%2913.htm