MLchartDataset catalogue

Longitudinal relaxation

Term · Oil and gas · MLC-T-OAG-002217

The process by which the nuclear magnetization of protons, aligned with an external magnetic field, returns to its equilibrium state after being perturbed by a radiofrequency pulse. This is a key principle in nuclear magnetic resonance (NMR) logging, where the time constant T1 characterizes this relaxation. T1 measurements provide information about pore size and fluid type.

Table 1. Record
IdentifierMLC-T-OAG-002217
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-002217",
  "term": "Longitudinal relaxation",
  "field": "Oil and gas",
  "definition": "The process by which the nuclear magnetization of protons, aligned with an external magnetic field, returns to its equilibrium state after being perturbed by a radiofrequency pulse. This is a key principle in nuclear magnetic resonance (NMR) logging, where the time constant T1 characterizes this relaxation. T1 measurements provide information about pore size and fluid type.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/longitudinal-relaxation/"
}

Record 2,371 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.