Surface properties and adsorption behavior of cocamidopropyl dimethyl amine oxide under high temperature and high salinity conditions

- The adsorption behavior on air/liquid and oil/liquid/rock interface are studied.
- Surface tension and the cmc are decreased as temperature and salinity increase.
- The contact angle of oil/liquid/rock system increases when rock wettability is modified.
- Static and dynamic adsorption amounts of CAO on rock surface are very large.