Vassilios Kelessidis

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Co-authors

Zisis VryzasPetroleum Engineering, PhDVerified email at lau.edu.lb
Hisham Nasr-El-DinTexas A&M UniversityVerified email at pe.tamu.edu
Panagiotis DalamarinisEngineerVerified email at dgpetro.com
Dimitrios I. GerogiorgisSchool of Engineering (IMP), University of EdinburghVerified email at ed.ac.uk
George ChristidisProfessor of Economic Geology-Industrial MineralogyVerified email at mred.tuc.gr
Rasel A Sultan, P.Eng.BID Group of CompaniesVerified email at mun.ca
Nikos PasadakisInstitute of Petroleum Research - FORTHVerified email at mred.tuc.gr
Michael NikolaouProfessor, Chemical & Biomolecular Engineering - Petroleum Engineering, University of HoustonVerified email at uh.edu
Chao YangProfessor of Chemical Engineering, Institute of Process Engineering, Chinese Academy of SciencesVerified email at ipe.ac.cn
Zoya HeidariAssociate Professor, The University of Texas at AustinVerified email at utexas.edu
Nikos AndritsosProfessor of Mechanical Engineering, University of ThessalyVerified email at mie.uth.gr
Michael FraimAssociate Professor of Petroleum Engineering, TAMUQVerified email at qatar.tamu.edu

Vassilios Kelessidis

Consultant, Drilling, Petroleum Engineering & Fluid Mechanics

Verified email at mred.tuc.gr

Petroleum & Chemical Engineering drilling engineering & drilling fluid rheology drilling hydraulics fluid mechanics & multiph


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Optimal determination of rheological parameters for Herschel–Bulkley drilling fluids and impact on pressure drop, velocity profiles and penetration rates during drilling VC Kelessidis, R Maglione, C Tsamantaki, Y Aspirtakis Journal of Petroleum Science and Engineering 53 (3-4), 203-224, 2006	341	2006
Modeling flow pattern transitions for upward gas-liquid flow in vertical concentric and eccentric annuli VC Kelessidis, AE Dukler International Journal of Multiphase Flow 15 (2), 173-191, 1989	220	1989
Nano-based drilling fluids: A review Z Vryzas, VC Kelessidis Energies 10 (4), 540, 2017	209	2017
Experimental study and predictions of pressure losses of fluids modeled as Herschel–Bulkley in concentric and eccentric annuli in laminar, transitional and turbulent flows VC Kelessidis, P Dalamarinis, R Maglione Journal of Petroleum Science and Engineering 77 (3-4), 305-312, 2011	183	2011
Nanoparticle-based drilling fluids for minimizing formation damage in HP/HT applications O Mahmoud, HA Nasr-El-Din, Z Vryzas, VC Kelessidis SPE international conference and exhibition on formation damage control …, 2016	182	2016
Effect of pH and electrolyte on the rheology of aqueous Wyoming bentonite dispersions VC Kelessidis, C Tsamantaki, P Dalamarinis Applied Clay Science 38 (1-2), 86-96, 2007	182	2007
Flow patterns and minimum suspension velocity for efficient cuttings transport in horizontal and deviated wells in coiled-tubing drilling VC Kelessidis, GE Bandelis SPE Drilling & Completion 19 (04), 213-227, 2004	160	2004
Development and Testing of Novel Drilling Fluids Using Fe₂O₃ and SiO₂ Nanoparticles for Enhanced Drilling Operations Z Vryzas, O Mahmoud, HA Nasr-El-Din, VC Kelessidis International petroleum technology conference, D041S044R002, 2015	128	2015
Yield stress of water–bentonite dispersions VC Kelessidis, R Maglione Colloids and Surfaces A: Physicochemical and Engineering Aspects 318 (1-3 …, 2008	115	2008
Modeling rheological behavior of bentonite suspensions as Casson and Robertson–Stiff fluids using Newtonian and true shear rates in Couette viscometry VC Kelessidis, R Maglione Powder technology 168 (3), 134-147, 2006	112	2006
Laminar, transitional and turbulent flow of Herschel–Bulkley fluids in concentric annulus K Founargiotakis, VC Kelessidis, R Maglione The canadian journal of chemical engineering 86 (4), 676-683, 2008	106	2008
Effect of temperature on the rheological properties of neat aqueous Wyoming sodium bentonite dispersions Z Vryzas, VC Kelessidis, L Nalbantian, V Zaspalis, DI Gerogiorgis, ... Applied Clay Science 136, 26-36, 2017	97	2017
Use of Carbopol 980 and carboxymethyl cellulose polymers as rheology modifiers of sodium-bentonite water dispersions VC Kelessidis, E Poulakakis, V Chatzistamou Applied clay science 54 (1), 63-69, 2011	95	2011
Greek lignites as additives for controlling filtration properties of water–bentonite suspensions at high temperatures VC Kelessidis, C Tsamantaki, A Michalakis, GE Christidis, P Makri, ... Fuel 86 (7-8), 1112-1121, 2007	85	2007
Measurements and prediction of terminal velocity of solid spheres falling through stagnant pseudoplastic liquids VC Kelessidis, G Mpandelis Powder Technology 147 (1-3), 117-125, 2004	78	2004
Measurement system and method for quantitatively determining the concentrations of a plurality of gases in drilling mud E Tannenbaum, T Burgess, V Kalessidis, A Orban, J Williams, K Zanker US Patent 4,887,464, 1989	72	1989
An explicit equation for the terminal velocity of solid spheres falling in pseudoplastic liquids VC Kelessidis Chemical engineering science 59 (21), 4437-4447, 2004	68	2004
Gelation of water–bentonite suspensions at high temperatures and rheological control with lignite addition VC Kelessidis, G Christidis, P Makri, V Hadjistamou, C Tsamantaki, ... Applied clay science 36 (4), 221-231, 2007	67	2007
Motion of large gas bubbles through liquids in vertical concentric and eccentric annuli VC Kelessidis, AE Dukler International journal of multiphase flow 16 (3), 375-390, 1990	66	1990
Using ferric oxide and silica nanoparticles to develop modified calcium bentonite drilling fluids O Mahmoud, HA Nasr-El-Din, Z Vryzas, VC Kelessidis SPE Drilling & Completion 33 (01), 12-26, 2018	64	2018

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