Gas Foams

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Description:

Dedicated surfactants are used to generate foam in oil reservoirs, from near-wellbore to in-depth in the formation. These foams improve gas sweep efficiency in CO2 (dense and non-dense), N2 and HC gas floods, resulting in accelerated and augmented recovery. The EOR Alliance has developed a workflow to select specific additives for various gases foams.

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Application:

In-depth gas mobility control, conformance treatment, gas shut-off, GOR control, gravity segregation.

Results:

Foam formulations were optimized both from the technical and the economical standpoint for a profitable field scale process. Petrophysics application tests demonstrated efficient gas mobility control results in various sets of conditions, including with CO2 rich-gas up to 100°C, in hard water and in presence of light paraffinic oil.


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