Difference between revisions of "141.2 derivation"

Revision as of 05:47, 21 April 2018

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

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]}

@@ Line 5: / Line 5: @@
 == 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:
-:<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==