Radial differential temperature log

{
  "id": "MLC-T-OAG-004430",
  "term": "Radial differential temperature log",
  "field": "Oil and gas",
  "definition": "A temperature log in which two sensors held against the casing wall at the same depth are turned around the casing, and the difference between their readings is recorded. A channel or low-rate flow behind the pipe on one side produces a temperature contrast between azimuths, so the log locates flow behind casing that a conventional temperature log can miss. Because both sensors see the same geothermal gradient, only local anomalies show.",
  "subject": "Production Logging",
  "url": "https://mlchart.com/terminology/oil-and-gas/radial-differential-temperature-log/"
}