SINOPEC' s exploration area in the Junggar Basin is characterized by small acreage

deep burial of reservoirs and scattering of blocks

causing difficulties in exploration.Exploration results show that it is challenging to correlate the main oil layers discovered in the study area with that in the adjacent oilfields of CNPC Xinjiang Oilfield Company.The major oil layers mostly occur at a higher horizon than the designed targets.It is believed that there possibly exist four horizontal and four vertical plays in the Jungar Basin.These plays are thought to have different characteristics and their distributions can be related to the orientations of deep faults and the locations of traps.Their levels of hydrocarbon enrichment might be related to the location of hydrocarbon kitchens and the stratigraphic positions of the source rocks

especially the carrier system formed by the unconformities and the source rock-rooted faults.The analyses of petroleum geological characteristics

reservoiring conditions

and main types of oil reservoir

reveal that the exploration in the study area shall take stratigraphic-lithologic reservoirs in the western margin as the primary targets

and that in Huaizhong block as the second targets

while the stratigraphic-structural reservoirs in the northern margin and Qingelidi Mountain block as the future exploration targets.