Definition(s)
Ram blowout preventer
Blowout preventer that uses metal blocks assembled with elastomer seals to seal off pressure on a wellbore, with or without tubulars in the bore.
Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards
Ram blowout preventer
Blowout preventer that uses two opposing metal elements (rams) with integral elastomer seals to contain pressure within a wellbore. NOTE Rams may be designed to close on a specific pipe size (fixed pipe rams), a range of pipe sizes (variable bore rams), or open hole (blind or blind/shear rams).
Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards
Ram blowout preventer
Blowout preventer that uses metal blocks with integral elastomer seals to seal off pressure on a wellbore with or without tubulars in the bore.
Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards