Through analyzing the characteristics of strata,structure,reservoir and oil pool of the middle 3~(rd) member of Shahejie formation(Es~3) in Wang 68 wellblock of Niuzhuang oilfield,it is believed that the middle Es~3 sandbodies both in Wang 68 wellblock and in the adjacent Niu 20 wellblock are fluxoturbidites deposited in semi-deep and deep lacustrine environment.

Analysis of well productivity of the fracture-cave volcanic reservoir in Niudong oilfield

Property of the crude oil in Niujuanhu Oilfield of Santanghu Basin and its control factors;

Niujuanhu oilfield is located in Santanhu basin, with complicated geology conditions.

Indentify volcanic reservoirs in block Tuo 33 of Niuxintuo oilfield by logging;

Reservoir fractures are relatively well developed in Niuxintuo oilfield which control the productivity of oil well directly.

Study on fractures of buried hill reservoir in Niuxintuo oil field;