Method and devicefor detecting mineral composition in sedimentary rock, equipment and storage medium

The invention provides a method and a device for detecting mineral composition in sedimentary rock, equipment and a storage medium, and belongs to the technical field of petroleum and natural gas exploration and development. The method comprises the steps: determining at least one proportionality coefficient according to the region and the horizon where a target sedimentary rock is located, wherein each proportionality coefficient is used for representing the ratio of the mass fractions of two minerals in the target sedimentary rock; obtaining the mass fraction of each element in the target sedimentary rock through element logging; and obtaining the mass fraction of each mineral in the target sedimentary rock according to the chemical molecular formula of each mineral in the target sedimentary rock, each proportionality coefficient and the mass fraction of each element in the target sedimentary rock. According to the scheme, the accuracy of detecting the mineral composition in the sedimentary rock can be impr