Reconstruction of the Cenozoic History of Hydrocarbon Fluids from Rifting Stage to Passive Continental Margin Stage in the Huizhou Sag, the Pearl River Mouth Basin

Table 5

Lithology and petrophysical parameters of strata in the Huizhou Sag.

Formation	Percentage of pure lithology (%)			Density (g/cm^3)	Initial porosity	Thermal conductivity (W/m°C)
	Sandstone	Siltstone	Shale
Wenchang	30.0	0	70.0	2.61	0.55	2.07
Yuehai	56.67	18.3	25.03	2.63	0.50	2.91
Hanjiang	45.99	33.47	20.54	2.62	0.51	2.71
Upper Zhujiang	30.0	0	70.0	2.62	0.55	2.07
Lower Zhujiang	70.0	0	30.0	2.63	0.49	3.19
Zhuhai	61.2	9.0	29.8	2.63	0.50	2.97
Enping	58.2	7.0	34.8	2.63	0.50	2.86
Wenchang	25.0	0	75.0	2.61	0.56	1.96