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  | 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
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  | frompg  = 9-44
  | topg    = 9-156
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  | topg    = 9-44
 
  | 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
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  | isbn    = 0-89181-602-X
 
  | isbn    = 0-89181-602-X
 
}}
 
}}
Water saturation (S<sub>w</sub>) of a reservoir is a function of height above [[Free water level|free water]] (h) and pore type. S<sub>w</sub> interpretations should be made accounting for h, r<sub>35</sub>, and pore throat size distribution in the reservoir. The [[Calculating Sw from the Archie equation#What is the Archie equation?|Archie equation]] is the most widely used method of determining S<sub>w</sub>.
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Water saturation (S<sub>w</sub>) of a reservoir is a function of height above [[Free water level|free water]] (h) and pore type. S<sub>w</sub> interpretations should be made accounting for h, [[Characterizing_rock_quality#What_is_r35.3F|r<sub>35</sub>]], and [[Connectivity and pore throat size|pore throat size distribution]] in the reservoir. The [[Calculating Sw from the Archie equation#What is the Archie equation?|Archie equation]] is the most widely used method of determining S<sub>w</sub>.  
 
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:<math>\text{Hydrocarbon saturation } (\text{S}_\text{h}) = 1 - \text{S}_\text{w}</math>
    
==See also==
 
==See also==
 
* [[Determining water saturation]]
 
* [[Determining water saturation]]
 
* [[Interpreting water saturation]]
 
* [[Interpreting water saturation]]
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* [[Archie equation]]
    
==External links==
 
==External links==
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[[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]]
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[[Category:Treatise Handbook 3]]

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