Influence Mechanism of N2-CO2 Mixtures on the CH4 Displacement Behavior from Different Coal Samples under Stress Condition.

ACS Omega · 2026 · PMC13295029 · PMID 42368045

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an increasing trendno p-value reported

This phenomenon indicated that the N 2 injection was able to alleviate the swelling of the coal matrix and open the compressed gas migration pathway, , so the permeability of the coal sample exhibited an increasing trend.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.

Influence Mechanism of N&lt;sub&gt;2&lt;/sub&gt;-CO&lt;sub&gt;2&lt;/sub&gt; Mixtures on the CH&lt;sub&gt;4&lt;/sub&gt; Displacement Behavior from Different Coal Samples under Stress Condition.

The sentences

Influence Mechanism of N<sub>2</sub>-CO<sub>2</sub> Mixtures on the CH<sub>4</sub> Displacement Behavior from Different Coal Samples under Stress Condition.