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Oilfield Glossary
Oilfield Glossary
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critical flow rate

1. n. [Production Testing]
In sand control operations, the maximum production rate below which the production of solids along with the produced fluid is uniform. When the flow rate exceeds this threshold, the production of sand and fines increases significantly. Sand-production control is important to avoid formation damage, possible casing collapse and deterioration of surface equipment due to drag forces.