Influence of Temperature,Concentration, and Gas/Liquid Ratios on the Gas-Mobility Reduction of Foams in Porous Media |
| |
| Authors: | M Sharath Chandra Geza Horvath-Szabo Marina Bulova |
| |
| Institution: | 1. Schlumberger DBR Technology Center , Edmonton , Alberta , Canada SMahavadi@exchange.slb.com Sharath.Mahavadi@gmail.com;3. Schlumberger DBR Technology Center , Edmonton , Alberta , Canada;4. Schlumberger Novosibirsk Technology Center , Novosibirsk , Russia |
| |
| Abstract: | The gas-mobility reduction capability of sodium dodecylbenzene sulfonate foams was studied in sandpacks as a function of temperature at different surfactant concentrations and gas/liquid ratios. Increasing the temperature decreased the gas mobility at a given surfactant concentration and gas/liquid ratio. At any given temperature, the gas-mobility reduction was not increased beyond a certain limit with increasing surfactant concentration. While increasing the gas/liquid ratio improved the gas-mobility reduction at 20°C, at higher temperatures the reduction capability decreased after reaching a maximum at a gas/liquid ratio of 9. All the foams became weak at temperatures of 150°C and higher. |
| |
| Keywords: | Foam mobility foam resistance factor foam stability gas/liquid ratio porous media surfactant temperature dependence thin film wettability |
|
|
