Table 1.

Rock properties of the Berea cores. The effect of the GCNPs on the absolute permeability are captured in the last two columns.

Core samples	Length	Diameter	Bulk volume	Wet weight	Dry weight	Pore volume	Porosity	Absolute K (Pre flooding)	Absolute K (Post flooding)
	(cm)	(cm)	(ml)	(g)	(g)	(ml)	(%)	(mD)	(mD)
Core A	6.30	3.7	67.77	165.3	151.2	12.48	18.41%	262.3	125.8
Core B	6.25	3.7	67.23	165.1	151.0	12.48	18.56%	278.8	115.4
Core C	6.30	3.7	67.77	164.7	151.0	12.12	17.89%	251.7	173.2
Core D	6.25	3.7	67.23	165.2	151.9	11.77	17.51%	245.0	223.7