Method and device for judging dominant seepage channel

The invention provides a method and a device for judging a dominant seepage channel. According to the method, a dominant seepage well identification system is established according to a dynamic characteristic standard model and dynamic and static identification parameters of a high-water-content oil field, the system comprises a production dynamic index model, a dominant seepage well classification model and a dominant seepage well communication model, and a dominant seepage well evaluation system is established according to dynamic and static evaluation parameters. Comprising a longitudinal seepage resistance coefficient model, a transverse seepage resistance coefficient model, a first horizon dominant seepage channel evaluation model and a second horizon dominant seepage channel evaluation model. A high-water-content oil field is identified through a dynamic characteristic standard model, then a target dominant seepage well is identified from the high-water-content oil field according to a dominant seepage