Numerical Vs. Analytical Aquifer

[arm]

Hi guys.
Can someone explain me where I should use Analytical aquifer and where I have to use Numerical aquifer in reservoir simulation.
I would like also know about the main advantages of each method.
Thanks

[loveboyzmj]

I have a PPT about Aquifer ,but It is written in Chinese.

[arm]

I have a PPT about Aquifer ,but It is written in Chinese.

Loveboyzmj
Can I have your PPT file. Unfortunately no one answers me.
Thank you.

[loveboyzmj]

My e-mail address is loveboyzmj@sina.com.

Please email me, then I send you the PPT file.

[DAH7542]

Hey arm,

This information will be useful. Best regards.

[Born-Different]

Nice topic for discussion))

[6thgear]

Very helpful threat..thanks.

I was facing a model case which (analyzed) water is coming through a fault between active grids above OWC.
I applied Carter-Tracy for this connection, and for the normal (below OWC) with Fetkovich. This way consume less time than applying 2 same spesification, in my case Fetkovich-Fetkovich need 4 times longer runtime than CT-Fetkovich.

However, i quote in the page 332 "Fetkovich and Carter-Tracy aquifers cannot be used in the same run". I have no problem running this, it's even faster..

The reason i came here, is to ask, weather is it possible to put a Numerical Aquifer to represent water from -----s? And if it can, do you think it can reduce the runtime? I'm thinking it's about to give worse problem..since, i quote from the post "that aquifers connected to cells above the OWC will flow into the oil zone. In numerical aquifers this takes place because the interblock mobility is taken from the upstream (aquifer) cell, not the downstream cell in which the water relative permeability may be zero. Analytical aquifer flow is independent of relative
permeability."

Just sharing my experience