Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

<div>Scanning electron microscopic image of coal samples: (a) abundant microcracks (8000 of magnification time) and (b) abundant “pyrolysis pores” (12000 of magnification time).</div>

Advances in Civil Engineering

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Figure 3

Figure 3: Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance 