Difference between revisions of "141.2 derivation"

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(Math and Physics)
(Math and Physics)
Line 5: Line 5:
 
== Math and Physics ==
 
== Math and Physics ==
  
Darcy's law for the radial flow:
+
Darcy's law:
  
:<math> q = 2 \pi \frac{kh}{\mu} \frac{rdP}{dr}</math>
+
:<math> q = -\frac{kA}{\mu} \frac{dP}{dL}</math>
  
 
In Darcy's units:
 
In Darcy's units:
  
  
:<math> \frac{[cm^3]}{[sec]} = 2 \pi \frac{[D][cm]}{[cP]} \frac{[cm] [atm]}{[cm]}</math>
+
:<math> \frac{[cm^3]}{[sec]} = \frac{[D][cm^2]}{[cP]} \frac{[atm]}{[cm]}</math>
  
 
==See Also==
 
==See Also==

Revision as of 05:47, 21 April 2018

Derivation of the 141.2 constant

141.2 is the well know constant with is used for converting from the Darcy's law units to the field units

Math and Physics

Darcy's law:

 q = -\frac{kA}{\mu} \frac{dP}{dL}

In Darcy's units:


 \frac{[cm^3]}{[sec]} = \frac{[D][cm^2]}{[cP]} \frac{[atm]}{[cm]}

See Also

Darcy's law

18.41 derivation