wellbore storage

[dzahui]

Hi

I´m looking information about the wellbore storage, specifically these models:
Fair Wellbore storage
Hagerman Wellbore Storage
Time Stepped Wellbore Storage

I really appreciate any help

[Bang Gaol]

This is for saphir? Take a look at the help or manual. I have used those WBS once, and the DFA book and manual are very helpful. I also cannot find any literatures or paper related to this.
Someone could help?

[dzahui]

I dont have any well test interpretation software, if someone has this pdf file pls send it to me.

[ahmedm]

i think there are two WBS constant and changing
you know there is an effect if you still have liquid in the well while testing it the changing of this liquid level also makes a difference in the pressure derivative curve which called changing WBS

i hope the bellow paper can explains more also other books can help you can search in 4shared about well testing

SPE 21829, Well Test Analysis with Changing Wellbore Storage. P.S. Hegeman, D.L. Halford and J.A. Joseph.
PA 8206 1981 Pressure Buildup Analysis With Wellbore Phase Redistribution
Fair Jr., Walter B., Shell Oil Co



good luck

Ahmedm

i hope this helps