Method for evaluating brittleness of lacustrine clay shale strata series reservoir based on dolomite content

The invention relates to the technical field of data processing, in particular to a method for evaluating the brittleness of a lacustrine facies mud shale strata series reservoir based on dolomite content, which comprises the following steps: acquiring the mineral component content of the reservoir through an X-ray diffraction total rock analysis method, acquiring the dynamic Young modulus and Poisson's ratio of the reservoir within a target depth range through acoustic logging data, and calculating the brittleness of the lacustrine facies mud shale strata series reservoir. Correcting and substituting into a brittleness calculation formula to calculate a brittleness index; rock skeleton structure change characteristics and porosity change characteristics in different dolomite content intervals and the influence of the characteristics on brittleness are analyzed, and the fitting relationship between the dolomite content and the brittleness index in different dolomite content intervals is analyzed in combinatio