Ram preventer

{
  "id": "MLC-T-OAG-003043",
  "term": "Ram preventer",
  "field": "Oil and gas",
  "definition": "A component of a blowout preventer (BOP) stack that uses hydraulically actuated rams to seal off the wellbore. Different types of rams exist, including pipe rams that seal around a specific pipe size, blind rams that seal an open hole, and shear rams that cut and seal the pipe. Ram preventers are a primary safety device to control well pressure during drilling and workover operations.",
  "subject": "Well Workover and Intervention",
  "url": "https://mlchart.com/terminology/oil-and-gas/ram-preventer/"
}