The south Shangdian fault block is located in the Shangdian region of Shandong Province. The sequence stratigraphy of the Dongying Formation in this block has been thoroughly studied. The Dongying Formation is well defined by unconformity surface or discontinuity surface both at its top and bottom, hence it is believed to be a welldeveloped sequence. Within this Formation, some superb retrograded lacustrine delta deposits have been developed due to lacustrine transgression. According to analyses of lithology, cyclicity, and the preservation state of the Dongying Formation, three systems tracts, lowstand, transgressive, and highstand, have been differentiated and a total of 9 parasequences and 32 rhymes are further subdivided. In addition, more than 100 boreholes and related seismic profiles have been studied, sequence stratigraphic correlations along 14 cross sections have been made, and finally the precise, flow unit grade, and stereoscopic sequence stratigraphic framework of the Dongying Formation has been reconstructed in the south Shangdian fault block. As a result of this analysis, a set of scientific data is provided for production of the oilfield, some benefits have been gained and the method has been proved to be efficient.
