A Method of Differentiating the Early-Time and Late-Time Behavior in Pressure-Pulse Decay Permeametry

Table 1

Error coefficient at varied values.

Volume ratios	90%		95%		99%		99.9%		99.99%
	Slope	(%)	Slope	(%)	Slope	(%)	Slope	(%)	Slope	(%)
	0.020	0	0.020	0	0.020	0	0.020	0	0.020	0
	0.197	0	0.1967	0	0.1967	0	0.197	0	0.197	0
	1.710	0.185	1.709	0.089	1.707	0.021	1.707	0.001	1.707	0.001
	7.672	10.645	7.361	6.165	7.055	1.745	6.950	0.228	6.937	0.041