In low oil-abundance area to the south of Yellow river in Dongpu sag

oil and gas distributions are characterized by hydrocarbons to be accumulated in near-source limbs of structures

fault blocks controlling oil accumulation

oil/gas pools being small and scattered

and low level of trap fullness

due to poor quality of source rocks

complexity of structures and poor combination of reservoirs and seals. It is quite different from the high oil-abundance area in the north. Progressive exploration and development should be carried out in the low abundance area in the future

on the basis of careful interpretation of exploration targets

and taking fault block groups as appraisal objects and directional drilling as a measure.