Injection pulsed neutron log

{
  "id": "MLC-T-OAG-001990",
  "term": "Injection pulsed neutron log",
  "field": "Oil and gas",
  "definition": "A pulsed neutron capture log run in an injection well and compared against a baseline run, using the formation capture cross section (sigma) to show where injected fluid has gone. A high-capture tracer such as borax solution, or injected seawater whose salinity differs from the formation water, changes sigma where it enters. The difference between runs outlines the injection profile.",
  "subject": "Production Logging",
  "url": "https://mlchart.com/terminology/oil-and-gas/injection-pulsed-neutron-log/"
}