Definition(s)
Quick Opening Valve Flow Characteristic
Produces a very rapid increase in flow between the closed position and the partially open position.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
Produces a very rapid increase in flow between the closed position and the partially open position.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards