Reservoir Tops

[Tejaswy]

I need to make a reservoir in shape of a dome, I was wondering how do i go about it.
I mean how do i give the tops to it.
Is a perfect semi circle with a radius of 3000 ft.

Any ideas ?

[vinomarky]

Furnish me the following and I'll generate with a simple spreadsheet for you - I made it at work, so cannot really make it public

Desired Grid Dimensions: i x j x k

Block Lengths: X x Y x Z (ft or m)


Z Relief At crest: ft or m
Depth at center of crest cell: ft or m

Ellipse Fitting
At ?? ft from center in I direction
I Dip is ?? ft/1000ft

[Tejaswy]

HI vinomarky,
I am afraid I have nothing of the data that you have asked. I was trying to mimic the reservoir design, see attachment, i wanted to learn how to make the dome type reservoir. I am just assuming that it is a perfect semi circle with 3000ft radius.
I am sorry that I have no data to give it.
Thank you for your reply.

Furnish me the following and I'll generate with a simple spreadsheet for you - I made it at work, so cannot really make it public

Desired Grid Dimensions: i x j x k

Block Lengths: X x Y x Z (ft or m)


Z Relief At crest: ft or m
Depth at center of crest cell: ft or m

Ellipse Fitting
At ?? ft from center in I direction
I Dip is ?? ft/1000ft

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

[vinomarky]

Looking at the pdf, my sheet doesn't really make that geometry anyway - its more designed for discrete thickness anticline rather than solid semi-bubble type geometry

You might want to simply consider starting with a cube grid, and setting PORO to zero above the bubble - some reasonably simple spreadsheet math to define sphere surfaces would do the trick

[Tejaswy]

Hey Vino,
I wish I knew how to do that too, I made a cubic.....but failed miserably on the spreadsheet maths.

[vinomarky]

The equation of a sphere, centered at point x0, y0, z0 of radius R is;
(x-x0)^2 + (y-y0)^2 + (z-z0)^2 = R2

So create your cube, cycle through each of the i's and j's of each layer, substituting in the corresponding mid-block x, y and z's into the above equation to solve for R2

If the R2 is less than your radius^2, then set porosity = your desired poro. If R2 is greater than your radius^2, then set porosity = zero