Effects of silica nanoparticles on the performance of water-based drilling fluids

KÖK M. V. , BAL B.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, vol.180, pp.605-614, 2019 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 180
  • Publication Date: 2019
  • Doi Number: 10.1016/j.petrol.2019.05.069
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.605-614
  • Keywords: Drilling fluid, Nanofluid, Silica, Nanoparticle, Fluid loss, Rheology


In this research, two groups of experiments were conducted to investigate the effects of silica (SiO2) nanoparticles on the filtration and rheological properties of water-based drilling fluids. In the first group, bentonite, chrome-free lignosulfonate (CFL) and carboxymethyl cellulose (CMC) were used in different concentrations to obtain base fluids. Nanofluids were prepared by adding 0.5 g of four different silica nanoparticles into these drilling fluids. Comparison of rheological properties, fluid loss amounts and mud cake thicknesses were performed at two different temperatures (25 degrees C and 49 degrees C). It was concluded that all of the nanoparticles reduced the filtration efficiency of bentonite muds. On the contrary, a reduction in fluid loss was observed for some lignosulfonate muds containing nanoparticle. However, no significant change in mud cake thickness and rheological properties was seen for both drilling fluids.