Mitigation of fine particles migration in deep bed filters treated by a nanofluid slug: An experimental study

Danial Arab, Peyman Pourafshary, Shahaboddin Ayatollahi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Fine particles migration in porous media (deep bed filters) is one of the main reasons causing formation damage especially during any well stimulation techniques or enhanced oil recovery (EOR) processes. It has been explained by lifting of in-situ fine particles present in the medium, their motion with the flow, and finally their capture at some pore throats. Attachment of particles to the rock surface during EOR agent injection into the reservoir can be a very promising remedy for the aforementioned challenge. In this experimental study, the role of nanoparticlestreated medium as an adsorbent of suspended particles has been investigated. Different concentrations of MgO and SiO2 nanoparticles were utilized to treat the synthetic porous media. In several core flooding tests, a stable suspension was injected into the already nanoparticles-treated medium and particles concentration of effluents was measured by turbidity analysis. In order to quantify the effect of nanoparticles to alter the medium surface characteristics, zeta potential analysis and dynamic light scattering methods have been applied. The results indicated that the presence of nanoparticles on the medium surface alters the zeta potential of the rock which in turn, results in critically reduction of particles concentration in the effluent samples compared with the non-treated media. It was found that treating with 0.03 wt% of MgO nanoparticles is the best scenario among the tests performed in this study. This finding was confirmed by DLVO theory by which the total energy of interactions existing between a particle and the rock surface was calculated.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages841-845
Number of pages5
Volume829
DOIs
Publication statusPublished - 2014
Event4th International Conference on Ultrafine Grained and Nano-Structured Materials, UFGNSM 2013 - Tehran, Iran, Islamic Republic of
Duration: Nov 5 2013Nov 6 2013

Publication series

NameAdvanced Materials Research
Volume829
ISSN (Print)10226680

Other

Other4th International Conference on Ultrafine Grained and Nano-Structured Materials, UFGNSM 2013
CountryIran, Islamic Republic of
CityTehran
Period11/5/1311/6/13

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Keywords

  • DLVO theory
  • Fines migration
  • Formation damage
  • Porous media
  • Zeta potential alteration

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Arab, D., Pourafshary, P., & Ayatollahi, S. (2014). Mitigation of fine particles migration in deep bed filters treated by a nanofluid slug: An experimental study. In Advanced Materials Research (Vol. 829, pp. 841-845). (Advanced Materials Research; Vol. 829). https://doi.org/10.4028/www.scientific.net/AMR.829.841