Simple multiple

{
  "id": "MLC-T-OAG-003418",
  "term": "Simple multiple",
  "field": "Oil and gas",
  "definition": "A type of seismic multiple reflection where the seismic energy travels from the source to a reflector, then to a second reflector (often the free surface or a strong impedance contrast), and finally back to the receiver. This results in an event on the seismic record that arrives later than the primary reflection. Simple multiples are a common form of coherent noise in seismic data.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/simple-multiple/"
}