Marine drilling riser

{
  "id": "MLC-T-OAG-002280",
  "term": "Marine drilling riser",
  "field": "Oil and gas",
  "definition": "A large-diameter pipe that connects the subsea blowout preventer (BOP) stack on the seabed to the drilling vessel at the surface. It provides a conduit for the drill string, drilling fluids, and electrical and hydraulic lines, creating a sealed return path for drilling mud. The riser also serves as a guide for running tools and equipment into the well and protects the drill string from ocean currents.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/marine-drilling-riser/"
}