Abstract Few 1D T2 and 2D T1-T2 Nuclear magnetic resonance (NMR) studies have focused on oil-bearing shales with complex constituents and a deeper understanding of the NMR relaxation behaviors of oil confined in shale is needed. In this paper, a series of T2 and T1-T2 NMR experiments were performed on oil-bearing shale and its components (clay minerals and kerogen) to obtain the T1-T2 fluid typing chart and analyze the adsorbed and free oil in shale. The results were as follows: five types of water (bound, adsorbed, free, crystal and structural water) in clay minerals were qualitatively identified and described by the specific T2 to T1/T2 ratio values, and T1-T2 maps were used to qualitatively indicate the clay type. The T1-T2 fluid typing chart containing the signatures of 8 proton populations in oil-bearing shale was defined and included bulk liquid, macropore (>1000 nm) oil, nanopore (

中文翻译：

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粘土、干酪根和含油页岩中质子的一维和二维核磁共振 (NMR) 弛豫行为

摘要 一维 T2 和二维 T1-T2 核磁共振 (NMR) 研究集中于具有复杂成分的含油页岩，需要更深入地了解页岩中石油的 NMR 弛豫行为。本文对含油页岩及其组分（粘土矿物和干酪根）进行了一系列 T2 和 T1-T2 核磁共振实验，获得了 T1-T2 流体类型图，并对页岩中的吸附油和游离油进行了分析。结果如下：粘土矿物中五种水（结合水、吸附水、游离水、结晶水和结构水）通过特定的T2与T1/T2比值进行定性识别和描述，并使用T1-T2图进行定性表示粘土类型。