A vessel, which utilizes pressure reduction and/or inertia to separate entrained gases from the liquid phases.

Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards



A system which separates the gas phase from multiphase fluids.

Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards



Equipment that removes undesirable gases from a liquid, especially gases entrained in drilling or completion fluids. Relies on pressure reduction or inertia to accomplish separation of liquid and gas phases.

Source: IADC UBO / MPD Glossary, December 2011. Global Standards


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