Rules for Flight Paths and Time of Flight for Flows in Porous Media with Heterogeneous Permeability and Porosity

Table 2

Permeability anisotropy studies.

Formation location	Horizontal permeability (nD)	Vertical permeability (nD)	Ratio (horizontal/vertical)	Measuring method	Reference
Barnett	96.3	2.3	45	Pulse decay method	Bhandari et al., 2015 [36]
Eagle Ford	50–210	50–80	4	Pulse decay method	Mokhtari and Tutuncu, 2015 [37]
Wilcox	11800	500	23	Transient pulse method	Kwon et al., 2004 [38]
Longmaxi	199.3–201.3	8	25	Pulse decay method	Pan et al., 2015 [39]
Krechba	12–58501.4	0.6–264	10–100; (one is 50000)	Transient pulse method	Armitage et al., 2011 [40]