DEFINITIONS
Blowout Preventer
The equipment (or valve) installed at the wellhead to contain wellbore pressure either in the annular space between the casing and the tubular or in an open hole during drilling, completion, testing, or work over operations.
Annular Blowout Preventer
A device that uses an elastomeric packing unit to seal off pressure on a well bore with or without tubular in the bore.
RAM Blowout Preventer
A valve that uses metal blocks with integral elastomeric seals to seal off pressure on a well bore with or without tubular in the bore.
MANUFACTURER & TYPE
HYDRIL- ANNULAR
SHAFFER -SPHERICAL
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