Transient electromagnetic method

{
  "id": "MLC-T-OAG-003892",
  "term": "Transient electromagnetic method",
  "field": "Oil and gas",
  "definition": "A geophysical technique that measures the decay of induced eddy currents in the Earth after a primary electromagnetic field is switched off. It involves transmitting a current into the ground and then recording the transient voltage response with a receiver coil. This method is used for mapping subsurface resistivity variations, which can indicate the presence of hydrocarbons or groundwater.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/transient-electromagnetic-method/"
}