local grid Transmissibility

Bilal Amjad · Post by **Bilal Amjad** » Thu Oct 28, 2010 2:27 am

Adjacent global cell (8, 20, 3) has TRANSX = 0.68509 while the local grid 93, 2, 7) with thickness 1/3 of global cell has TRANSX = 0, Wt is the reason for this behavior? the parent cell has non-zero transmissibility.

I have attached the .data file. in zip folder

Bilal Amjad · Post by **Bilal Amjad** » Thu Oct 28, 2010 2:30 am

These are the adjacent cells I am talking about

Post by **FANARCO** » Thu Oct 28, 2010 5:26 am

Are these transmissibilities assigned by yourself ??
I.e. You assigned its value for each cell manually OR calculated via property distribution by PETREL

Bilal Amjad · Post by **Bilal Amjad** » Thu Oct 28, 2010 2:55 pm

No some pre-processor assigned these values.

Post by **FANARCO** » Thu Oct 28, 2010 3:44 pm

Ok, So you should modify these value manually because divergence problem may occur due to high variation in tras. values with adjacent cells.

Bilal Amjad · Post by **Bilal Amjad** » Thu Oct 28, 2010 7:00 pm

what is the reason for this behavior, this question is asked by the eclipse trainer

Post by **FANARCO** » Thu Oct 28, 2010 9:21 pm

The Transferability value between two grid blocks is affected by many factors including but not limited to :

- Length of the grid cell.
- Thickness.
- Permeability of grid block i & i+1
- Area between the two grid blocks.

Please check pages No. 155, 156 & 157 in the attached presentation

[align=center]Applied Reservoir Simulation Course
Reservoir Simulation Application Training Course and Eclipse workshop[/align]

Bilal Amjad · Post by **Bilal Amjad** » Fri Oct 29, 2010 12:12 am

read the text box in picture

.::FANARCO::.

local grid Transmissibility

local grid Transmissibility

no

PIC for more clearification