Toe to heel air injection

{
  "id": "MLC-T-OAG-003858",
  "term": "Toe to heel air injection",
  "field": "Oil and gas",
  "definition": "A variation of in-situ combustion where air is injected into the toe (bottom) of a horizontal well, and combustion gases and mobilized oil are produced from the heel (top) of the same well. This method creates a controlled combustion front that moves along the wellbore, heating the oil and reducing its viscosity. The process is often applied in heavy oil reservoirs with high permeability.",
  "subject": "Enhanced Oil Recovery",
  "url": "https://mlchart.com/terminology/oil-and-gas/toe-to-heel-air-injection/"
}