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Nitrogen Foam Fracturing Technology
Overview

Nitrogen foam fracturing technology take the advantage of compressibility that nitrogen to form foam into the formation in synergy with water to achieve high flowback ratio without reducing the proppant-carrying performance of the fracturing fluid and reduce reservoir damage.

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Good anti-filtration effect and contributes to fracturing fluid efficiency.


Foam with high apparent viscosity in the pore medium, low friction and good proppant-carrying performance.


Large nitrogen compression coefficient, high elastic energy, good performance in assisting flowback and reducing reservoir damage.


Foam is "stable in water and defoaming in oil", blocking water but not oil, which can effectively improve the recovery rate.
Nitrogen foam fracturing can effectively reduce the amount of water, minimize reservoir damage, accelerate fracturing fluid flowback, and improve the stimulation effect of low-pressure, water-sensitive reservoirs.


Suitable for normal pressure or low pressure reservoirs such as CMB, carbonates, sandstones, etc. It is also suitable for water-sensitive formations.
Nitrogen foam frac that performed on CBM in Shanxi, effect of stimulation is obvious.
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