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Midale water saturation and pore geometry (view source)
Revision as of 16:43, 17 March 2014
, 16:43, 17 March 2014→Buckles plot
==Buckles plot==
==Buckles plot==
[[File:Predicting-reservoir-system-quality-and-performance fig9-102.png|thumbnail|{{figure number|2}}.]]
[[File:Predicting-reservoir-system-quality-and-performance fig9-102.png|thumbnail|{{figure number|2}}Illustration of mudstones that are (A) meso- to macro-porous (B) amicro- to meso-porous; packstones.]]
As shown on [[:File:Predicting-reservoir-system-quality-and-performance fig9-102.png|Figure 2]], mudstones (B) are micro- to mesoporous; packstones (A) are meso- to macroporous. The mudstones have more pores with smaller pore throats than the packstones. This means mudstones have greater pore surface area and higher immobile S<sub>w</sub>. As a consequence, S<sub>w</sub> values for mudstones are higher at any given elevation in the oil column.
As shown on [[:File:Predicting-reservoir-system-quality-and-performance fig9-102.png|Figure 2]], mudstones (B) are micro- to mesoporous; packstones (A) are meso- to macroporous. The mudstones have more pores with smaller pore throats than the packstones. This means mudstones have greater pore surface area and higher immobile S<sub>w</sub>. As a consequence, S<sub>w</sub> values for mudstones are higher at any given elevation in the oil column.