  We report detailed microscopic studies of asphaltenes aggregation onset
during waterflooding of petroleum reservoirs. To achieve this objective, a
series of simulations are performed on asphaltenic-oil miscibilized with water
at high pressure and temperature through molecular dynamics. Results of this
simulation onset are applicable to asphaltenes behavior in real crude oils. Our
simulation results illustrate that the aggregation onset in waterflooding
generally follows three sequential steps: (i). Asphaltene-water interaction;
(ii). Water bridging; (iii). Face-to-face stacking. Then, asphaltene-water and
water-water hydrogen-bonding network surround every aggregate boosting the
intensity of aggregation onset. We intend to utilize such understanding of
these details in our predictive and preventive measures of arterial blockage in
oil reservoirs during waterflooding.
