1. Date of download: 11/2/2017
Copyright © ASME. All rights reserved.
From: Modeling Formation Damage by Asphaltene Deposition During Primary Oil Recovery
J. Energy Resour. Technol. 2005;127(4): doi: /
Figure Legend:
Schematic description of asphaltene precipitation and deposition mechanisms: (a) p>pp, asphaltene is dissolved in oil completely; (b) pp>p>pb, asphaltene precipitates from oil and deposits to pore surface and∕or plugs the pore throat; (c) p≈pb, asphaltene precipitates attain maximum, some deposits are reentrained into oil; (d) p<pb, some asphaltene precipitates are redissolved into oil, where p denotes the reservoir oil pressure, pb is the bubble-point pressure and pp is the onset of asphaltene precipitate pressure.