Method and device for evaluating hydrocarbon source rock distribution

The invention provides a method and device for evaluating hydrocarbon source rock distribution, and the method comprises the steps: carrying out the organic carbon content testing of a rock core, andobtaining the organic carbon content of the rock core; performing rock core depth correction according to a gamma curve obtained by rock core scanning and a gamma curve obtained by well logging, so that the rock core depth is consistent with the well logging depth; determining logging sensitive parameters for evaluating the organic carbon content according to the organic carbon content of the rockcore and the corrected rock core corresponding depth logging parameters; establishing a calculation model of the organic carbon content according to the logging sensitive parameters; according to thecalculation model of the rock core, the field outcrop, the single well logging curve and the organic carbon content, establishing a sequence stratigraphic framework of the to-be-evaluated area of thehydrocarbon source rock; an