It is unclearly that the development direction of provenance controls on the development characteristics and distribution model of sandbodies, which restricts the hydrocarbon exploration. To resolve the problems, the studies on the development characteristics of provenance and the distribution of sedimentary facies are depicted, based on the third-order sequence stratigraphic framework. The results indicated that： 1） the typical downlap is identified in SQⅢ, which was interpreted as onlap in the past; 2） nearshore subaqueous fan is recognized according to the analysis of seismic facies and core data, which enriches the depositional facies types in steep slope zone; 3） different from the east provenance in the SQⅠand SQⅡ, the sediment supply comes from the northwestern part lead to the large fan-delta development, which is changed the traditional viewpoint about the northeastern provenance; 4） based on the sedimentary facies analysis in sequence stratigraphic framework, the sand-body development model from SQⅠ to SQⅢ in the study area is established. This study provides guidance to the hydrocarbon exploration in mature oildfields and implicates the provenance controls on the sediments partition in steep slope zone of lacustrine rift basin.
Ren Mengyi Liu Zhen Lu Chaojin Liu Xin Gao Qinqiu Wang Xiong Li Liang Wang Shilin. Controlls of provenance direction on sand-body distribution in Shahejie Formation，Liuzan area，Nanpu sag[J]. Chinese Journal of Geology, 2017, 52(3): 980-997.