In addition, the adsorption of emulsifier on the hydrophobic part of the hydrocolloid could have formed a mixed interfacial film of gum and emulsifier that increased viscoelastic properties.
Low interfacial tension may be kept after oil sand adsorption and thermal ageing in the system.
体系经油砂吸附和热老化后仍能保持较低的界面张力。
3
Properties of OCS surfactant were studied for application to Block 1219 in Dagang oilfield by measuring interfacial tension, solubilization capacity, adsorption amount and oil displacement efficiency.