## ESTIMATE THE STORAGE-COEFFICIENT

The next piece of information required is an estimate of the possible
range of the well-bore storage-coefficient. This coefficient represents
the volume of fluid that enters the well-bore per unit-change
in the bottom-hole pressure. Because this is a well-bore coefficient,
it can be estimated strictly from the well-bore geometry and the
gas in the well-bore.

FIRST: calculate the MINIMUM storage coefficient, C(min), from
a formula based on the "barometric equation". This value
corresponds to a stagnant column of gas at a uniform temperature.

SECOND: calculate the MAXIMUM storage coefficient, C(max) as:

Calculate C(min) and C(max) and write down the values you obtain;
we need them later!

__Q: Did you calculate C(min) and C(max)
and write down the values?__

A1: Yes I did...

A2: Nope...