ch5
Post on 07-Dec-2015
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Formation Evaluation Chapter 5
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Effect of
(Gas, Clays, Overpressure Intervals, Secondary
Porosity, Fractures)
on
Apparent Porosity of Sonic, Density and Neutron
Logging Tools
1
5. Determination of Porosity• Porosity from:
– Acoustic log– Density log– Neutron log
• Effect of:– Hydrocarbons – Shale– Carbonates– Uncompacted Sands – Pressure – Lithology
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