Investigations of Inhibition of Asphaltene Precipitation at High Pressure Using bottomhole Samples

摘要

The deposition of asphaltene during oil recovery has large economic and technical impacts on the production. The use of surfactant based asphaltene inhibitors is widespread but the effect at reservoir conditions is not well documented scientificly at elevated pressure. In the present paper the effect of two different commercial inhibitors and their effects on the onset pressure (asphaltene deposition envelope) are reported as a function of temperature using an optical laser light ]transmission technique and bottomhole oil samples.