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Paul Dennis edited untitled.tex
over 8 years ago
Commit id: b65730e89abc264bbec64fe7912b904488e0a23b
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\[V \cdot \left( {{\Theta _i} - {\Theta _1}} \right) \cdot C_p^w \cdot {\rho _w} = \left[ {({x_1} - {x_2}) \cdot h \cdot \left( {\frac{{{\Theta _1} - {\Theta _2}}}{2}} \right) + \left( {{\Theta _1} - {\Theta _2}} \right) \cdot \left( {{x_1} - {x_2}} \right) \cdot {{\left( {\frac{{kt}}{\pi }} \right)}^{0.5}}} \right] \cdot C_p^r \cdot {\rho _r}\]
where V is the volume of fluid expelled along the fault, h is the effective width of the fault,
$C_{p}^{w}$ C_{p}^{w} and
$C_{p}^{r}$ C_{p}^{r} are the specific heat capacities of water and rock respectively,
$\rho$_{w} \rho_{w} and
$\rho$_{r} \rho_{r} the densities of water and rock, and k the thermal diffusivity of rock. Noting that and selecting values of
120$^{\circ}$, 100$^{\circ}$ 120^{\circ}, 100^{\circ} and
40$^{\circ}$C 40^{\circ}C respectively for
$\Theta$_{i}, $\Theta$_{1} \Theta_{i}, \Theta_{1} and {\Theta$_{2}, 3000m for \textit{x}_{1}, 1000m for \textit{x}_{2} and an effective fault width of 1m we find that the maximum duration for an individual fluid pulse is a function