The Effect of Precipitation Inhibitor on Surfactant/Alkali/Acid/Crude Oil System

This project is to observe the IFf behavior when precipitation inhibitor is created in
the solution. It is also aimed to identify the optimum concentration of surfactant,
alkali and acid. As the conventional ASP is always limited to fresh water, new
approach need to be applied as brine hardness becomes the biggest limitation in
ASP. In this project, it is suggested that by adding acid, precipitation inhibitor will
be accumulated from the related reaction and enable the conventional ASP to be
used with hard brine. The scope of study related to this project will be interfacial
tension itself, as well as the optimum concentration for the related chemical for the
best IFf retention. Different solutions with brine hardness at 35 000 ppm is
prepared, and 1FT measurement is done by using Spinning Drop Interfacial
Tensionmeter. All readings are taken at 30°C. The result showed that below
optimum concentration, the chemicals work successfully but failed when is in excess.