The following set of calculations describe how to either raise or lower the oil/water (O/W) ratio of an oil-based mud. If water enters an oil mud, the O/W ratio will decrease and if the O/W ratio is to be raised, then oil will have to be added. The amount of oil required to raise the O/W ratio can be calculated as follows:
If the O/W ratio is desired to be lowered, then water must be added based on the following equation: Lower oil/water ratio - add water % water + x
retort analysis: 52% oil by vol
10% water by vol
Resulting volume = 1 bbl mud + 0.213 bbl oil = 1.213 bbl
To convert to one barrel final volume, divide the mud and the oil volume by the resulting volume. 1 bbl mud /1.213 bbl = 0.82 bbl mud 0.213 bbl oil / 1.213 bbl = 0.18 bbl oil
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