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added Category:Treatise Handbook 3 using HotCat
{{merge|Water saturation}}
{{publication
{{publication
| image = exploring-for-oil-and-gas-traps.png
| image = exploring-for-oil-and-gas-traps.png
| part = Predicting the occurrence of oil and gas traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Predicting reservoir system quality and performance
| chapter = Predicting reservoir system quality and performance
| frompg = 9-1
| frompg = 9-45
| topg = 9-156
| topg = 9-45
| author = Dan J. Hartmann, Edward A. Beaumont
| author = Dan J. Hartmann, Edward A. Beaumont
| link = http://archives.datapages.com/data/specpubs/beaumont/ch09/ch09.htm
| link = http://archives.datapages.com/data/specpubs/beaumont/ch09/ch09.htm
| isbn = 0-89181-602-X
| isbn = 0-89181-602-X
}}
}}
Water saturation (S<sub>w</sub>) can be measured directly from a sealed core, which is an expensive method, or it can be calculated from the [[Archie equation]],<ref name=Archie_1942>Archie, G. E., 1942, The electrical resistivity log as an aid in determining some reservoir characteristics: Petroleum Transactions of AIME 146: 54–62.</ref> which is less expensive. S<sub>w</sub> can also be estimated using a graphical representation of the Archie equation known as the Pickett plot.<ref name=ch09r45>Pickett, G., R., 1973, Pattern recognition as a means of formation evaluation: The Log Analyst, vol. 14, no. 4, p. 3–11.</ref>
Water saturation (S<sub>w</sub>) can be measured directly from a sealed core, which is an expensive method, or it can be calculated from the [[Archie equation]],<ref name=Archie_1942>Archie, G. E., 1942, The electrical resistivity log as an aid in determining some reservoir characteristics: Petroleum Transactions of AIME 146: 54–62.</ref> which is less expensive. S<sub>w</sub> can also be estimated using a graphical representation of the Archie equation known as the [[Pickett plot construction|Pickett plot]].<ref name=ch09r45>Pickett, G. R., 1973, Pattern recognition as a means of formation evaluation: The Log Analyst, vol. 14, no. 4, p. 3–11.</ref>
==See also==
==See also==
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Predicting reservoir system quality and performance]]
[[Category:Predicting reservoir system quality and performance]]
[[Category:Treatise Handbook 3]]