Shaleitian salient is an exposed paleo-buried hill underwent long-term weathering and erosion with several structural highs.It is separated into the east part and the west part by early strike-slip faults.Several hundred-million-tons of OOIP have been discovered in the east part of the salient.Under the control of the early tectonic strike stress in basement

four NE-trending strike-slip faults were developed in the east part of the salient

affected by which the ancient channels were formed on the basement surface.The Neogene was draped on the buried hill.Due to the impact of later dextral strike-slip faulting

a series of NNE-trending or nearly EW-trending faults were formed in the Neogene.These en echelon faults have significant control on the accumulation of hydrocarbon in the area.The paper establishes the hydrocarbon accumulation pattern of the Neogene and determines the hydrocarbon exploration potential by analyzing the structural evolution characte-ristics of the east part of the salient

providing theoretical support for the progressive exploration and reserve growth.