Method for detecting contents of organic matters, bound fluid and movable fluid in shale

The invention discloses a method for detecting the content of organic matter, bound fluid and movable fluid in shale, which comprises the following steps: S1, before relaxation imaging is measured, carrying out driving balance treatment on a magnetization vector, then entering a nuclear magnetic resonance relaxation imaging editing stage, and collecting multi-dimensional nuclear magnetic resonance data; s2, performing data processing on the multi-dimensional nuclear magnetic resonance data acquired in the step S1 to obtain continuous (T1-T2) distribution in the axial direction of the sample; and S3, according to the continuous (T1-T2) distribution in the axial direction of the sample, finally obtaining the organic matter content, the bound fluid content and the movable fluid content of the axial section of the shale. According to the invention, driving balance is carried out on the spinning system, the relaxation contrast of subsequent signals is improved, and the identification capability of organic matters