Fig. 6

Sedimentary facies and porosity-permeability zonation map of the Jiamuhe Formation in the Shawan Sag. (a) sedimentary facies. (b) porosity distribution of the delta plain. (c) porosity distribution of the delta front; d. permeability distribution of the delta plain facies. (e) permeability distribution of the delta front. The figures were created by the Geomap v4.0 software (https://www.geomapapp.org).