Downhole safety valve (DSV)

{
  "id": "MLC-T-OAG-001153",
  "term": "Downhole safety valve (DSV)",
  "field": "Oil and gas",
  "definition": "A subsurface valve installed in the tubing string of a producing well, designed to automatically shut off hydrocarbon flow in the event of an emergency or loss of surface control. It acts as a fail-safe barrier to prevent uncontrolled release of well fluids to the surface. DSVs are mandated by regulatory bodies for offshore wells and certain onshore wells.",
  "abbreviation": "DSV",
  "subject": "Well Completions",
  "url": "https://mlchart.com/terminology/oil-and-gas/downhole-safety-valve-dsv/"
}