Diffusive coupling in heptane-saturated kerogen isolates evidenced by NMR T1-T2 and T2-T2 maps

[Display omitted] •Diffusive coupling found between inter-granular and dissolved heptane in kerogen.•T2-T2 maps show off-diagonal exchange peaks due to diffusive coupling.•T1 and T2 are in intermediate and weak diffusive-coupling regimes, respectively.•T1/T2 ratio of inter-granular heptane increases...

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Veröffentlicht in:	Fuel (Guildford) 2020-11, Vol.280, p.1, Article 118626
Hauptverfasser:	Singer, Philip M., Chen, Zeliang, Wang, Xinglin, Hirasaki, George J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Confinement Coupling Heptanes Hydrocarbons Kerogen NMR Nuclear magnetic resonance Saturation Shale Shales Surface relaxation
Online-Zugang:	Volltext
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