Variable-density log

{
  "id": "MLC-T-OAG-004012",
  "term": "Variable-density log",
  "field": "Oil and gas",
  "definition": "A type of acoustic log presentation that displays the amplitude and waveform of the received sonic signal as a grayscale or color image. It provides a visual representation of the formation's acoustic impedance and can highlight features like fractures, gas zones, and cement bond quality. This log is often used in conjunction with other acoustic measurements.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/variable-density-log/"
}