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

Table 3

Composition and diagenetic types of reservoir debris.

Composition classification	Composition			Diagenetic type
	Quartz	Feldspar	Debris	Metamorphic rock debris	Magmatic rock cuttings	Sedimentary cuttings
Proportion (%)	45.7	32.9	21.4	45	35	20