A core of sandstone is brought into the laboratory and a Darcy experiment is done on the on the core to determine the hydraulic conductivity (K). See experimental set up below.

The following was recorded: core diameter (D) 10 cm; core length (L) 20 cm; steady state flow (Q) was recorded at 5 ml/min; h 1 = 20 cm; h 2 = 5 cm.
a) Using Darcy’s law, determine the hydraulic conductivity (K) of the core in the units of [m/s] and report to two decimals.
b) Assuming that the fluid used in the experiment is fresh water at 25 °C, determine the intrinsic permeability (k) for the sandstone in [m 2 ] and report to 1 decimal.

Question

A core of sandstone is brought into the laboratory and a Darcy experiment is done on the on the core to determine the hydraulic conductivity (K). See experimental set up below. 
    
 The following was recorded: core diameter (D) 10 cm; core length (L) 20 cm; steady state flow (Q) was recorded at 5 ml/min; h 1  = 20 cm; h 2  = 5 cm. 
 a)  Using Darcy’s law, determine the hydraulic conductivity (K) of the core in the units of [m/s] and report to two decimals. 
 b) Assuming that the fluid used in the experiment is fresh water at 25 °C, determine the intrinsic permeability (k) for the sandstone in [m 2 ] and report to 1 decimal.

Accepted Answer

a) K = 1.41·10 -5  m/s, b) k = 1.3·10 -12  m 2

Answer

a) K = 1.01·10 -5  m/s, b) k = 1.0·10 -12  m 2

Answer

a) K = 1.41·10 -5  m/s, b) k = 1.0·10 -12  m 2

Answer

a) K = 1.01·10 -5  m/s, b) k = 1.3·10 -12  m 2

Crowdly

A core of sandstone is brought into the laboratory and a Darcy experiment is don...

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