Calculate Water Saturation - Flushed Zone Sxo

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List of equations assignment

Water Saturation (Sw) - Flushed Zone Sxo

There are diverse equation for water saturation calculation in the flushed zone. Here are some of the equations proposed by different authors:

1) First Equation

Where:
• Sxo= water saturation of the flushed zone
• Sw= water saturation of the uninvaded zone

Calculate Water Saturation (Sw) - Flushed Zone (Sxo)
Sw: Decimal

2) Second equation

Where:
• Sxo= water saturation of the flushed zone
• Rmf= resistivity of the mud filtrate at formation temperature
• Rxo= shallow resistivity from a very shallow reading device such as lateolog-8, microspherically focused log, or microlaterolog
• F= Formation Factor

Calculate Water Saturation (Sw)- Flushed Zone (Sxo) - Formation Factor (F)
F:		Rmf: ohm-m
Rxo: ohm-m

3) Third equation- Archie

Where:
• Sxo= water saturation of the flushed zone
• Rmf= resistivity of the mud filtrate at formation temperature
• Rxo= shallow resistivity from a very shallow reading device such as lateolog-8, microspherically focused log, or microlaterolog
• ɸ = porosity
• a= tortuosity factor
• m= cementation exponent
• n= saturation exponent

Calculate Water Saturation (Sw)- Archie- Flushed Zone (Sxo)
a:		Rmf: ohm-m
Rxo: ohm-m		ɸ: Decimal
m:		n:

Made by Henry Herrera