Lubricator

{
  "id": "MLC-T-OAG-002237",
  "term": "Lubricator",
  "field": "Oil and gas",
  "definition": "A pressure-containing device installed on top of a wellhead to allow tools or equipment to be run into or retrieved from a live well under pressure. It consists of a series of flanged sections that can be assembled to accommodate the length of the tool string. The lubricator is equipped with a stuffing box or grease injection system to seal around the wireline or coiled tubing, preventing well fluids from escaping to the atmosphere.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/lubricator/"
}