How to Calculate and Solve for MBAL Gas Solubility | The Calculator Encyclopedia

The image above represents the MBAL gas solubility.

To compute for the MBAL gas solubility, four essential parameters are needed and these parameters are Specific Gravity of Solution Gas (γg), Specific Gravity of Stock Tank Oil (γo), Oil FVF (Bo) and Oil Density (ρo).

The formula for calculating MBAL gas solubility:

Rs = Boρo – 62.4γo / 0.0136γg

Where:

Rs = MBAL Gas Solubility
γg = Specific Gravity of Solution Gas
γo = Specific Gravity of Stock Tank Oil
Bo = Oil FVF
ρo = Oil Density

Let’s solve an example;
Given that specific gravity of solution gas is 9, specific gravity of stock tank oil is 13, oil FVF is 19 and oil density is 27. Find the MBAL gas solubility?

This implies that;

γg = Specific Gravity of Solution Gas = 9
γo = Specific Gravity of Stock Tank Oil = 13
Bo = Oil FVF = 19
ρo = Oil Density = 27

Rs = Boρo – 62.4γo / 0.0136γg
Rs = 19 x 27 – 62.4 x 13 / 0.0136 x 9
Rs = 513 – 811.19 / 0.1224
Rs = -298.19 / 0.1224
Rs = -2436.27

Therefore, the MBAL gas solubility is -2436.27.

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