Follow
Cesar Ovalles
Title
Cited by
Cited by
Year
Reversible adsorption of carbon dioxide on amine surface-bonded silica gel
O Leal, C BolÝvar, C Ovalles, JJ GarcÝa, Y Espidel
Inorganica Chimica Acta 240 (1-2), 183-189, 1995
4031995
Heavy oil based mixtures of different origins and treatments studied by atomic force microscopy
B Schuler, S Fatayer, G Meyer, E Rogel, M Moir, Y Zhang, MR Harper, ...
Energy & Fuels 31 (7), 6856-6861, 2017
1752017
Opportunities of downhole dielectric heating in venezuela: three case studies involving medium, heavy and extra-heavy crude oil reservoirs
C Ovalles, A Fonseca, A Lara, V Alvarado, K Urrecheaga, A Ranson, ...
SPE International Thermal Operations and Heavy Oil Symposium andá…, 2002
1262002
Anionic Group 6B metal carbonyls as homogeneous catalysts for carbon dioxide/hydrogen activation. The production of alkyl formates
DJ Darensbourg, C Ovalles
Journal of the American Chemical Society 106 (13), 3750-3754, 1984
1131984
Asphaltene stability in crude oils and petroleum materials by solubility profile analysis
E Rogel, C Ovalles, M Moir
Energy & fuels 24 (8), 4369-4374, 2010
992010
Homogeneous catalysts for carbon dioxide/hydrogen activation. Alkyl formate production using anionic ruthenium carbonyl clusters as catalysts
DJ Darensbourg, C Ovalles, M Pala
Journal of the American Chemical Society 105 (18), 5937-5939, 1983
891983
Use of CO2-Triggered Switchable Surfactants for the Stabilization of Oil-in-Water Emulsions
C Liang, JR Harjani, T Robert, E Rogel, D Kuehne, C Ovalles, V Sampath, ...
Energy & fuels 26 (1), 488-494, 2012
852012
Process for the downhole upgrading of extra heavy crude oil
C Vallejos, T Vasquez, C Ovalles
US Patent 5,891,829, 1999
841999
Use of a dispersed iron catalyst for upgrading extra-heavy crude oil using methane as source of hydrogen☆
C Ovalles, E Filgueiras, A Morales, CE Scott, F Gonzalez-Gimenez, ...
Fuel 82 (8), 887-892, 2003
822003
Anionic group 6 hydrides and carboxylates as homogeneous catalysts for reduction of aldehydes and ketones
PA Tooley, C Ovalles, SC Kao, DJ Darensbourg, MY Darensbourg
Journal of the American Chemical Society 108 (18), 5465-5470, 1986
731986
Downhole upgrading of extra-heavy crude oil using hydrogen donors and methane under steam injection conditions
C Ovalles, C Vallejos, T Vasquez, I Rojas, U Ehrman, JL Benitez, ...
Petroleum science and technology 21 (1-2), 255-274, 2003
712003
The residual oil saturation determination for Steam Assisted Gravity Drainage (SAGD) and Solvent-SAGD
T Kar, C Ovalles, E Rogel, J Vien, B Hascakir
Fuel 172, 187-195, 2016
642016
Characterization of heavy crude oils, their fractions, and hydrovisbroken products by the asphaltene solubility fraction method
C Ovalles, E Rogel, M Moir, L Thomas, A Pradhan
Energy & fuels 26 (1), 549-556, 2012
552012
Use of a dispersed molybdenum catalyst and mechanistic studies for upgrading extra-heavy crude oil using methane as source of hydrogen
C Ovalles, E Filgueiras, A Morales, I Rojas, JC de Jesus, I Berrios
Energy & fuels 12 (2), 379-385, 1998
531998
Asphaltene chemical characterization as a function of solubility: effects on stability and aggregation
E Rogel, C Ovalles, M Moir
Energy & fuels 26 (5), 2655-2662, 2012
502012
Sediment formation in residue hydroconversion processes and its correlation to asphaltene behavior
E Rogel, C Ovalles, A Pradhan, P Leung, N Chen
Energy & fuels 27 (11), 6587-6593, 2013
492013
Determination of asphaltenes in crude oil and petroleum products by the on column precipitation method
E Rogel, C Ovalles, ME Moir, JF Schabron
Energy & fuels 23 (9), 4515-4521, 2009
492009
Homogeneous catalysis of methyl formate production from carbon monoxide and methanol in the presence of metal carbonyl catalysts
DJ Darensbourg, RL Gray, C Ovalles, M Pala
Journal of molecular catalysis 29 (2), 285-290, 1985
471985
Upgrading of extra-heavy crude oil by direct use of methane in the presence of water: Deuterium-labelled experiments and mechanistic considerations
C Ovalles, A Hamana, I Rojas, RA BolÝvar
Fuel 74 (8), 1162-1168, 1995
461995
Homogeneous catalytic synthesis of alkyl formates from the reaction of alkyl halides, carbon dioxide, and hydrogen in the presence of anionic Group 6 carbonyl catalysts andá…
DJ Darensbourg, C Ovalles
Journal of the American Chemical Society 109 (11), 3330-3336, 1987
461987
The system can't perform the operation now. Try again later.
Articles 1–20