Sonic Derived Porosity- Shale Corrected - Dewan (1983)
Dewan (1983) proposed a simple equation to make the shale correction to the value obtained from sonic derived porosity, where he considered shale volume and the sonic porosity in a nearby shale at the depth of the study area. The equation is the following:
- Where:
- ɸSe= effective (shale-corrected) sonic porosity
- ɸS= sonic porosity
- ɸSsh= sonic porosity in a nearby shale
- Vshale= shale volume
| Calculate Sonic Derived Porosity - Shale Corrected- Dewan (1983) | |||
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