Steam-assisted gravity drainage

{
  "id": "MLC-T-OAG-003610",
  "term": "Steam-assisted gravity drainage",
  "field": "Oil and gas",
  "definition": "An advanced thermal enhanced oil recovery method that employs two parallel horizontal wells, one positioned a few meters above the other, within a heavy oil reservoir. Steam is continuously injected into the upper well, forming a steam chamber that heats the surrounding oil, reducing its viscosity. The heated oil and condensed steam then drain by gravity into the lower production well.",
  "subject": "Heavy Oil",
  "url": "https://mlchart.com/terminology/oil-and-gas/steam-assisted-gravity-drainage/"
}