Effect of the Temperature on CO2/Brine/Dolomite Wettability: Hydrophilic versus Hydrophobic Surfaces
MetadataShow full item record
The water contact angle in a system of brine (20 wt % CaCl 2 ) and CO 2 was measured on a smooth dolomite surface [root mean square (RMS) surface roughness of 45 nm] with both hydrophilic and hydrophobic behaviors as a function of the pressure (0.1, 5, 10, 15, and 20 MPa) and temperature (308, 323, and 343 K). The experimental results show that the contact angle of brine/CO 2 increases slightly with the temperature when the dolomite surface is hydrophilic but, interestingly, reduces when the surface is hydrophobic. The results also illustrate that the brine/CO 2 contact angles increase with increasing pressure. We interpreted the experimental observations using the concept of alteration in van der Waals potential (substrate surface chemistry) with thermodynamic properties, including pressure and temperature.
Showing items related by title, author, creator and subject.
Electrochemical investigation of the effect of temperature, salinity and salt type on brine/mineral interfacial propertiesArif, Muhammad; Jones, Franca; Barifcani, Ahmed; Iglauer, Stefan (2017)CO2 wettability of minerals and CO2/brine interfacial tension are critical parameters that significantly influence the underground geological storage of CO2. These interfacial phenomena are proven to be a function of ...
Insights into the wettability alteration of CO<inf>2</inf>-assisted EOR in carbonate reservoirsChen, Y.; Sari, A.; Xie, Q.; Saeedi, Ali (2019)© 2019 Elsevier B.V. Wettability of oil-brine-carbonate system is an important petro-physical parameter, which governs subsurface multiphase flow and residual oil saturation. CO2-assisted EOR techniques have been identified ...
Iglauer, Stefan (2017)Carbon geosequestration (CGS) has been identified as a key technology to reduce anthropogenic greenhouse gas emissions and thus significantly mitigate climate change. In CGS, CO2 is captured from large point-source emitters ...