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| ==Reservoir porosity and permeability== | | ==Reservoir porosity and permeability== |
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| + | [[file:predicting-reservoir-system-quality-and-performance_fig9-87.png|thumb|{{figure number|1}}. Copyright: Hartmann and ;<ref name=ch09r11>Coalson, E., B., Hartmann, D., J., Thomas, J., B., 1990, Applied Petrophysics in Exploration and Exploitation: Notes from short course sponsored by Univ. of Colo.–Denver, var. pages.</ref> courtesy RMAG.]] |
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| Morrow sandstones in Sorrento field have a wide range in porosity and [[permeability]]. Maximum observed porosity (Φ) is 20-22%, but more typical values are 10-15%. Air permeabilities (K<sub>a</sub>) are as great as 1-2 darcies but more commonly are 200-500 md. | | Morrow sandstones in Sorrento field have a wide range in porosity and [[permeability]]. Maximum observed porosity (Φ) is 20-22%, but more typical values are 10-15%. Air permeabilities (K<sub>a</sub>) are as great as 1-2 darcies but more commonly are 200-500 md. |
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− | Below is a K<sub>a</sub>/Φ crossplot for well 11 (see Figure 9-87). Dots and polygons represent measured K<sub>a</sub>/Φ values. Curves are the graphical solution of Winland's r<sub>35</sub> equation<ref name=ch09r46>Pittman, E., D., 1992, Relationship of porosity to permeability to various parameters derived from mercury injection–capillary pressure curves for sandstone: AAPG Bulletin, vol. 76, no. 2, p. 191–198.</ref> and represent equal r<sub>35</sub> values (port size).
| + | [[:file:predicting-reservoir-system-quality-and-performance_fig9-87.png|Figure 1]] is a K<sub>a</sub>/Φ crossplot for well 11 (see Figure 9-87). Dots and polygons represent measured K<sub>a</sub>/Φ values. Curves are the graphical solution of Winland's r<sub>35</sub> equation<ref name=ch09r46>Pittman, E., D., 1992, Relationship of porosity to permeability to various parameters derived from mercury injection–capillary pressure curves for sandstone: AAPG Bulletin, vol. 76, no. 2, p. 191–198.</ref> and represent equal r<sub>35</sub> values (port size). |
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| The crossplot shows a large variation in port size for the samples from well 11. Areas between dashed lines group points into beds with similar port size, or flow units. | | The crossplot shows a large variation in port size for the samples from well 11. Areas between dashed lines group points into beds with similar port size, or flow units. |
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− | [[file:predicting-reservoir-system-quality-and-performance_fig9-87.png|thumb|{{figure number|9-87}}. Copyright: Hartmann and ;<ref name=ch09r11>Coalson, E., B., Hartmann, D., J., Thomas, J., B., 1990, Applied Petrophysics in Exploration and Exploitation: Notes from short course sponsored by Univ. of Colo.–Denver, var. pages.</ref> courtesy RMAG.]]
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| ==Extrapolated capillary pressure curves and pore types== | | ==Extrapolated capillary pressure curves and pore types== |