Research Article

[Retracted] Effectiveness of Oil Filling in Tight Sandstone Reservoirs of Yancheng Formation in Ordos Basin

Table 2

Lithologic composition of tight oil reservoir in member 7 of Yancheng formation in Ordos.

Rock characterFine sandstoneVery fine sandSiltstoneMudstoneOther

Proportion (%)60.310.17.29.313.1