Drainage

{
  "id": "MLC-T-OAG-001166",
  "term": "Drainage",
  "field": "Oil and gas",
  "definition": "The process where a non-wetting fluid displaces a wetting fluid from the pore spaces of a rock, such as oil or gas displacing water during primary migration or reservoir charging. This occurs when the capillary pressure of the non-wetting fluid exceeds that of the wetting fluid. Drainage is the opposite of imbibition.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/drainage/"
}