Enhance Oil Recovery : Chemical Flooding

Enhance Oil Recovery : Chemical Flooding

Chemical flooding is divided into two different methods -- polymer flooding and surfactant-polymer flooding.
Polymers can typically be added to the injection water flooded through a reservoir to achieve EOR. The purpose of this additive is to block 'highways' for the injection water in the reservoir in order to change and optimise flow patterns.

With the other technique, surfactants (detergents) are added to injection water to 'wash out' more oil in the reservoir.

More specifically, polymers add to sweep efficiency by improving the mobility ratio. Surfactants, for their part, enhance microscopic recovery by reducing capillary forces in addition to boosting sweep efficiency.

Conventional polymers help to raise the viscosity of the injection water, whilst surfactants reduce interfacial tension between oil and water.

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Видео Enhance Oil Recovery : Chemical Flooding канала Harvest Chemical