Calculate Total Water Saturation (Swt)- Shale Corrected

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List of equations assignment

Total Water Saturation (Swt)- Shale Corrected

There is another equation for the calculation of total (shale-corrected) water saturation. This uses parameters like water resistivity, apparent water resistivity, besides of a constant "b" that depends on water saturation and bound-water resistivity. The equation is the following:

Where:
• Swt= total (shale corrected) water saturation
• Rw= resistivity of formation water at formation temperature
• Rwa= apparent water resistivity
• b= constant

Calculate Total Water Saturation (Swt) - Shale Corrected
b:		Rw: ohm-m
Rwa: ohm-m

Constant b

Constant b depends of water saturation, bound-water resistivity, and the resistivity of a bound-water formation. The equation to calculate it, is expressed the following way:

Where:
• Swb= bound-water saturation
• Rw= resistivity of formation water at formation temperature
• Rb= bound-water resistivity
• b= constant

Calculate Constant b
Swb: Decimal		Rw: ohm-m
Rb: ohm-m

Made by Henry Herrera