Sidewall

{
  "id": "MLC-T-OAG-003401",
  "term": "Sidewall",
  "field": "Oil and gas",
  "definition": "A technique for obtaining small core samples from the wall of a drilled wellbore after logging operations are complete. A specialized tool, often wireline-conveyed, fires small projectiles into the formation to retrieve cylindrical plugs. These samples provide direct measurements of rock properties like porosity, permeability, and fluid saturation, complementing log data.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/sidewall/"
}