Vassilios C. Kelessidis

Optimal determination of rheological parameters for Herschel–Bulkley drilling fluids and impact on pressure drop, velocity profiles and penetration rates during drilling

Vassilios C. Kelessidis, Roberto Maglione, Christina Tsamantaki et al. · Journal of Petroleum Science and Engineering · 2006 · 292 citations

Drilling Mechanics, Rheological Measurement, Engineering +13

Modeling flow pattern transitions for upward gas-liquid flow in vertical concentric and eccentric annuli

Vassilios C. Kelessidis, A. E. Dukler · International Journal of Multiphase Flow · 1989 · 213 citations

Rarefied Flow, Engineering, Fluid Mechanics +7

Effect of pH and electrolyte on the rheology of aqueous Wyoming bentonite dispersions

Vassilios C. Kelessidis, Christina Tsamantaki, Panayiotis Dalamarinis · Applied Clay Science · 2007 · 154 citations

Materials Science, Chemical Engineering, Clay Mineral +6

Experimental study and predictions of pressure losses of fluids modeled as Herschel–Bulkley in concentric and eccentric annuli in laminar, transitional and turbulent flows

Vassilios C. Kelessidis, Panagiotis Dalamarinis, Roberto Maglione · Journal of Petroleum Science and Engineering · 2011 · 142 citations

Engineering, Turbulent Flows, Fluid Mechanics +7

Nanoparticle-Based Drilling Fluids for Minimizing Formation Damage in HP/HT Applications

Omar Mahmoud, H. A. Nasr‐El‐Din, Zisis Vryzas et al. · SPE International Conference and Exhibition on Formation Damage Control · 2016 · 134 citations

Rock Testing, Engineering, Drilling Fluids +23