The invention discloses a passive land edge basin marine
facies effective
hydrocarbon source rock distribution prediction method and device, and relates to the technical field of oil and gas geology, and the method comprises the steps: dividing the main development tectonic evolution stages of passive land edge basin
hydrocarbon source rocks based on the tectonic background of a passive land edge basin; based on existing earthquake and drilling data, analyzing
seismic facies characteristics corresponding to sedimentary
facies in each tectonic evolution stage, and judging a favorable
seismic facies distribution range of passive trailing basin
hydrocarbon source rocks; on the basis of a passive land edge basin earth
heat flow background and a basin thermal evolution history, hydrocarbon
source rock maturation history
simulation is carried out, basin hydrocarbon
source rock hydrocarbon generation evolution characteristics are analyzed, and passive land edge basin hydrocarbon source kitchen distribution is predicted; based on a marine
facies hydrocarbon source rock development mode and control factors,
seismic facies identification and distribution laws and marine facies hydrocarbon source kitchen distribution laws are facilitated, and distribution of passive
trailing edge basin marine facies effective hydrocarbon source rocks is predicted. According to the prediction method, the problems of high cost and high difficulty of the existing passive land edge basin marine facies effective hydrocarbon source rock prediction are solved.