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Oilfield Glossary
Oilfield Glossary
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mobility ratio

1. n. [Enhanced Oil Recovery, Enhanced Oil Recovery]
The mobility of an injectant divided by that of the fluid it is displacing, such as oil. The mobility of the oil is defined ahead of the displacement front while that of the injectant is defined behind the displacement front, so the respective effective permeability values are evaluated at different saturations.
See: mobility