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(1) |
\epsilon_f(T) = 0.25 \cdot \left[ 1+ 9 \cdot P_f + 3 \cdot \sqrt{ 9 P_f^2 + 2 P_f +1} \right] |
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(2) |
P_f(T) = s_w \cdot P_w + s_o \cdot P_o + s_g \cdot P_g |
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(3) |
P_w(T) = \frac{(\epsilon_w-1)(2\epsilon_w+1)}{9 \, \epsilon_w} |
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(4) |
\epsilon_w(T) = 87.74 - 0.40008 \cdot T + 9.398 \cdot 10^{-4} \cdot T^2
- 1.41 \cdot 10^{-6} \cdot T^3 |
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(5) |
P_o(T) = \frac{\epsilon_o-1}{\epsilon_o+2} |
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(6) |
P_g(T) = = \frac{\epsilon_g-1}{\epsilon_g+2} |
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where
| volumetric fractions of water, oil and gas phases:
s_w + s_o + s_g = 1 |
| electrical polarization of water, oil and gas phases |
\epsilon_w, \, \epsilon_o, \, \epsilon_g | relative dielectric permittivity of water, oil and gas phases |
| fluid temperature |
See also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Fluid Analysis / Fluid Capacitance
[ Dielectric permittivity of water @model ]