Oilfield Glossary

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Note: Definitions provided on this website are for reference purposes only. Engineers and professionals should independently confirm all information using industry standards.

LACT unit

Lease Automatic Custody Transfer (LACT) unit. An automated system that measures the net volume and quality (sediment & water) of oil as it is transferred from the producer to the pipeline company.

It includes a pump, air eliminator, BS&W probe, diverter valve (to reject bad oil back to the tank), and a high-precision meter.

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