The basins on the western of Algin Rift were all compressive depressions, their geothermal gradients were lower.

A doctor blade clears the ink from the unwanted areas, leaving the ink in the depressions of the cylinder.

Dazhongwang area is located in the south west plunge of the Beidagang structure zone, Huanghua depression.

Lakeshore and swampy carbonaceous mudstone and coal measures are major hydrocarbon source rocks of the Kuqa depression.

Applying the sequence stratigraphy theory established the sequence stratus frame in the abrupt slope belt to meet the demands of high revolution exploration in Jiyang Depression.