# Slurry Volume

## Definition - What does Slurry Volume mean?

Slurry Volume is the ratio of slurry weight to slurry density. Slurry density is the prime parameter that needs to be calculated in order to find slurry volume. Slurry Density is the ratio of sum of the weight of water and additives to the volume of cement slurry. It is usually expressed in kilogram per cubic meter (kg/m3) or pounds per gallon (lb/gal). In a typical oil or gas well, cement slurry density can range from 1380 to 2280 kg/m3 or 11.5 to 19.0 lb/gal.

**Slurry Volume = Slurry Weight / Slurry Density**

## Petropedia explains Slurry Volume

In order to calculate the
Slurry Density, the following parameters need to be found out in the following order:

**1.
Additive weight per cement sack (in pounds, lb)**

Weight = percent of additive x 94 lb/sk

**2.
Total amount of water requirement (in gallon per sack, gal/sk)**

Water = water requirement by cement (gal/sk) + water requirement by additives (gal/sk)

**3.
Slurry volume (in gallon per sack, gal/sk)**

Volume = (94 lb / Specific Gravity of cement x 8.33 lb/gal) + (weight of additive, Ib / Specific Gravity of additive x 8.33 lb/gal) + water volume, gal.

**4.
Slurry Yield (in ft3/sk)**

Slurry yield = Slurry volume, gal/sk / 7.48 gal/ft3

**5.
Slurry Density (in pounds per gallon, lb/gal)**

Slurry density = 94 + weight of additive + (8.33 x volume of water per sack) / slurry vol, gal/sk.

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