Shale gas reservoir Poisson ratio determination method and device based on element logging

The invention discloses a shale gas reservoir Poisson ratio determination method and device based on element logging. The method comprises the steps that on the basis of the mineral content, the rock porosity, the TOC content, the water saturation, the rock skeleton density and the rock density, determined according to element logging data, in shale gas reservoir rock, the rock skeleton longitudinal and transverse wave speed and the rock longitudinal and transverse wave speed of the shale gas reservoir rock are sequentially determined through a volume model method; determining the Poisson's ratio of the rock skeleton according to the longitudinal and transverse wave velocities of the rock skeleton, and determining the Poisson's ratio of the rock according to the longitudinal and transverse wave velocities. According to the method, the dynamic Poisson ratio of the rock skeleton and the rock can be rapidly and accurately determined by using the element logging data. 本发明公开了一种基于元素录井的页岩气储层泊松比确定方法和装置。所述方法包括，基于根据元素录