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Pc curves and saturation profiles (view source)
Revision as of 12:49, 18 June 2014
, 12:49, 18 June 2014→Pore throat size sorting
==Pore throat size sorting==
==Pore throat size sorting==
[[file:predicting-reservoir-system-quality-and-performance_fig9-23.png|thumb|{{figure number|2}}See text for explanation.]]
[[file:predicting-reservoir-system-quality-and-performance_fig9-23.png|300px|thumb|{{figure number|2}}Hypothetical examples of P<sub>c</sub> curves for rocks with varying pore throat size sorting.]]
The graph in [[:file:predicting-reservoir-system-quality-and-performance_fig9-23.png|Figure 2]] shows hypothetical examples of P<sub>c</sub> curves for rocks with varying pore throat size sorting. The r<sub>35</sub> value is the same for each sample; therefore, all three curves pass through the same point. The curves labeled A illustrate different pore throat size sorting. If the pore throats of the sample have a narrow range of sizes (i.e., are well sorted), the P<sub>c</sub> curve will be flat as the pressure in the mercury reaches the entry pressure for those pore throats. If the range of pore throat sizes is wide, the curve will steepen.
The graph in [[:file:predicting-reservoir-system-quality-and-performance_fig9-23.png|Figure 2]] shows hypothetical examples of P<sub>c</sub> curves for rocks with varying pore throat size sorting. The r<sub>35</sub> value is the same for each sample; therefore, all three curves pass through the same point. The curves labeled A illustrate different pore throat size sorting. If the pore throats of the sample have a narrow range of sizes (i.e., are well sorted), the P<sub>c</sub> curve will be flat as the pressure in the mercury reaches the entry pressure for those pore throats. If the range of pore throat sizes is wide, the curve will steepen.