Oilfield Glossary
Oilfield Glossary
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Tools

downhole sensors

1. n. [Production Testing]
Mechanical or electronic devices for measuring various properties in the well such as pressure, fluid flow rate from each branch of a multilateral well, temperature, vibration, composition, fluid flow regime, and fluid holdup. These devices can be permanent; in this case, they are left in place for months or even years.
See: fluid flow