Dynamics and wettability of petroleum fluids in shale oil probed by 2D T 1 -T 2 and fast field cycling NMR relaxation
Dynamics and wettability of petroleum fluids in shale oil probed by 2D T 1 -T 2 and fast field cycling NMR relaxation
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DOI：
10.1016/j.micromeso.2017.05.055
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发表时间：
2017-05
影响因子：
5.2
通讯作者：
J. Korb;J. Korb;B. Nicot;I. Jolivet
中科院分区：
文献类型：
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作者：
J. Korb;J. Korb;B. Nicot;I. Jolivet
本文给出了页岩中石油和盐水在不同频率下的纵向弛豫速率1/T1（NMRD）和二维自旋相关T1-T2的核磁弛豫色散。我们描述了核自旋弛豫模型用于获得重要的动力学和结构参数，从这些实验。这些模型允许解释非常不同的T1/T2比率上观察到的这些石油流体的二维自旋相关T1-T2在两个频率。它们还提供了有关包埋流体的动力学和润湿性以及干酪根孔隙尺寸的一些结构测量的新信息。
We present nuclear magnetic relaxation dispersion of longitudinal relaxation rates1/T1(NMRD) and 2D spin-correlationT1-T2at different frequencies for oil and brine confined in shale oil rocks. We describe the nuclear spin relaxation models used for obtaining important dynamical and structural parameters from these experiments. These models allow interpreting the very differentT1/T2ratio observed for these petroleum fluids on the 2D spin-correlationT1-T2observed at two frequencies. They give also new informations on the dynamics and wettability of the embedded fluids as well as some structural measurement on the kerogen pore size.