How m, n affect water saturation for different methods

[mid]

Hi
I am sharing the following sheet with you, which show how water saturation is affected by m, n, Rw for different methods

It will give better understanding to which affecting what

Jusy play with these paramters and look at how the vlaues will change
I hope it will be beneficial

[link Point to another website Only the registered members can access]
Mdh

[usaf]

excellent job dear, thanks. Could you please post some other meterial like this?

[GerardoL]

Thank you very much !!!!!

[usaf]

1. Could anyone help me how to calculate the petrophysical parameters like a, m & n??
2. What average values can we use for sandstones and Limestone??
3. Anything to share regarding "Formation Water Analysis"??

Thanks

[mid]

m, n values are determined through core analysis from formation factor and resistivty index tests
RECOMMENDED PARAMETERS:
for sandstone A = 0.62
M = 2.15
N = 2.00
for carbonates A = 1.0
M = 2.00
N = 2.00

can you be specific on the formation water analysis point
Mhd

[usaf]

thanks, how we can find Rw from water analysis?
If only chlorides are given or we have TDS then how to calculate Rw?

[project12]

2. Technical Background

Current logging tools that measure the dielectric permittivity of reservoir formations normally operate over a wide range in signal frequency from 16 MHz to 1100 MHz. The permittivity measurements from these tools are used to determine the water and oil saturations of reservoir formations. However, the dielectric permittivity of a formation changes with the signal frequency so that an equation that correctly predicts the water and, hence, oil saturation from the formation dielectric permittivity at one frequency may predict incorrect values at other frequencies.

One method, based on the Hanai-Bruggeman equation, has been developed which uses the same algebraic expression to relate the dielectric permittivity to water saturation. The method is set forth in my earlier patent application Ser. No. 871,730, filed June 6, 1986, now U.S. Pat. No. 4,786,873 and entitled "Improved Method for Evaluating Water Saturation in Petroleum Reservoirs from Dielectric Permittivity." The disclosure in Ser. No. 871,730, now U.S. Pat. No. 4,786,873 is incorporated herein by reference. The method has adjustable parameters to compensate for the frequency dependence of the permittivity. The adjustable parameters are determined from laboratory measurements taken from core samples. However, laboratory measurements of the dielectric permittivity below 100 MHz are often inaccurate because of limitations in laboratory techniques.

[mid]

2. Technical Background

Current logging tools that measure the dielectric permittivity of reservoir formations normally operate over a wide range in signal frequency from 16 MHz to 1100 MHz. The permittivity measurements from these tools are used to determine the water and oil saturations of reservoir formations. However, the dielectric permittivity of a formation changes with the signal frequency so that an equation that correctly predicts the water and, hence, oil saturation from the formation dielectric permittivity at one frequency may predict incorrect values at other frequencies.

One method, based on the Hanai-Bruggeman equation, has been developed which uses the same algebraic expression to relate the dielectric permittivity to water saturation. The method is set forth in my earlier patent application Ser. No. 871,730, filed June 6, 1986, now U.S. Pat. No. 4,786,873 and entitled "Improved Method for Evaluating Water Saturation in Petroleum Reservoirs from Dielectric Permittivity." The disclosure in Ser. No. 871,730, now U.S. Pat. No. 4,786,873 is incorporated herein by reference. The method has adjustable parameters to compensate for the frequency dependence of the permittivity. The adjustable parameters are determined from laboratory measurements taken from core samples. However, laboratory measurements of the dielectric permittivity below 100 MHz are often inaccurate because of limitations in laboratory techniques.

Project12,
Please share your source, or quote it so we know the whole story
thanks

[meyssam1983]

thanks a lot

[temr]

Thanks, man

[temr]

Can you supply password for password protected sheets?

[abrakadabra]

Hey friends!

Does anyone have R.P. Monicard 'Properties of reservoir rocks: core analysis' book to share?

Tx.