Polarization horn

{
  "id": "MLC-T-OAG-004415",
  "term": "Polarization horn",
  "field": "Oil and gas",
  "definition": "A sharp, spurious spike on an induction log curve that appears at the boundary between a highly resistive bed and an adjacent conductive bed. This logging artifact is caused by the electromagnetic field behavior at the interface and does not represent a true formation property. Polarization horns were characteristic of older induction tools and are largely suppressed by the processing algorithms used with modern multi-array induction instruments.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/polarization-horn/"
}