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Line 1: + + − − [[file:predicting-reservoir-system-quality-and-performance_fig9-40.png|thumb|{{figure number|1}}How a Buckles plot relates to capillary pressure, fluid distribution, and fluid recovery in a reservoir.]]
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[[file:predicting-reservoir-system-quality-and-performance_fig9-40.png|thumb|{{figure number|1}}How a Buckles plot relates to capillary pressure, fluid distribution, and fluid recovery in a reservoir.]]
A Buckles plot is a plot of water saturation (S<sub>w</sub>) vs. [[porosity]]. Contours of equal bulk volume water (BVW) are drawn on the plot.
A Buckles plot is a plot of water saturation (S<sub>w</sub>) vs. [[porosity]]. Contours of equal bulk volume water (BVW) are drawn on the plot.
* Points plot on a hyperbolic BVW line where the formation is near immobile water if the points come from a reservoir with consistent pore type and pore geometry.
* Points plot on a hyperbolic BVW line where the formation is near immobile water if the points come from a reservoir with consistent pore type and pore geometry.
* Points scatter on a Buckles plot where the formation falls below the top of the transition zone.
* Points scatter on a Buckles plot where the formation falls below the top of the transition zone.
[[:file:predicting-reservoir-system-quality-and-performance_fig9-40.png|Figure 1]] shows how a Buckles plot relates to [[capillary pressure]], fluid distribution, and fluid recovery in a reservoir.
[[:file:predicting-reservoir-system-quality-and-performance_fig9-40.png|Figure 1]] shows how a Buckles plot relates to [[capillary pressure]], fluid distribution, and fluid recovery in a reservoir.