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List of Petrophysics Equations 📄

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Apparent Water Resistivity Rwa - Archie

Archie (1942) Water Saturation

Clavier (1971) Shale Volume

Coates & Dumanoir (1968) Permeability

Compensated Sw - Dewan (1983) Water Saturation

Density - Dewan (1983) Shale Corrected Porosity

Density - Schlumberger (1975) Shale Corrected Porosity

Density Porosity

Dewan (1983) - Dispersed Shale Water Saturation

Ferlt (1975) Water Saturation

Flushed Zone Resistivity Porosity

Flushed Zone Rxo Water Saturation

Gamma Ray Index (IGR)

Gas Reserves

Hydrocarbons Effects Sonic Porosity

Larionov (1969) - Old Rocks Shale Volume

Larionov (1969) Shale Volume

NMR - Coates Permeability

NMR Permeability

Neutron - Density - Dewan (1983) Shale Corrected Porosity

Neutron - Density Porosity

Neutron - Dewan (1983) Shale Corrected Porosity

Neutron - Schlumberger (1975) Shale Corrected Porosity

Oil Reserves

Raymer et al. (1980) Sonic Porosity

References

Residual Hydrocarbon Resistivity Porosity

Resistivity Porosity

Resistivity Porosity - Saturation = 1

Schlumberger (1975) Water Saturation

Shale Volume SP

Simandoux (1963) Water Saturation

Sonic - Dewan (1983) Shale Corrected Porosity

Sonic - Dresser Atlas (1979) Shale Corrected Porosity

Steiber (1970) Shale Volume

Timur (1968) Permeability

Total Resistivity Rt

Total Water Saturation

Unconsolidated Formations Sonic Porosity

Water Resistivity - SP

Water Resistivity - Western Atlas

Water Resistivity Rw - Archie

Wyllie & Rose (1950) - Dry Gas Permeability

Wyllie & Rose (1950) - M. Gravity Oil Permeability

Wyllie et al. (1958) Sonic Porosity

Made by Henry Herrera