Carbonate rock fracture cavity engraving method and device

The embodiment of the invention provides a carbonate rock fracture cavity engraving method and device. The method comprises the steps that a working area planar graph of carbonate rock is divided into a plurality of fracture cavity zones, each fracture cavity zone is divided into a plurality of fracture cavity units, the fracture cavity zones are irregular closed zones, and the fracture cavity units are irregular closed zones; according to a preset fracture cavity amplitude value range, fracture cavity bodies inside each fracture cavity unit of each fracture cavity zone are determined; the size and storage capacity of each fracture cavity body in each fracture cavity unit in each fracture cavity zone are calculated; the sizes of the fracture cavity bodies inside each fracture cavity unit are added to obtain the size of the fracture cavity unit, and the storage capacities of the fracture cavity bodies inside each fracture cavity unit are added to obtain the storage cavity of the fracture cavity unit. According to the carbonate rock fracture cavity engraving method and device, all the fracture cavity bodies inside each fracture cavity zone can be engraved at a time, and the sizes and the storage cavities of the fracture cavity bodies can be quantified.