Blowout Preventer stack is the
main wellhead pressure control
equipment for oil & gas drilling, no
matter onshore or offshore drilling.
It consists of annular blowout
preventer, single ram blowout
preventer, double ram blowout
preventer and drilling spool. This
blowout preventer stacks sunry
supplies are similar to Shaffer's
BOP ore Cameron's BOP or Hydril
BOP. It is designed and fabricated
in accordance to API Spec 16A.