MLchartDataset catalogue

Bulk relaxation

Term · Oil and gas · MLC-T-OAG-000485

The nuclear magnetic resonance relaxation that a fluid undergoes by itself, away from any pore surface, set by molecular motion and interactions within the fluid. It depends on viscosity and temperature, with low-viscosity water relaxing in about 2 to 3 seconds and heavy oil in milliseconds. It is one of three contributions to the measured T2 of a rock, alongside surface relaxation at the grain walls and diffusion relaxation in field gradients.

Table 1. Record
IdentifierMLC-T-OAG-000485
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-000485",
  "term": "Bulk relaxation",
  "field": "Oil and gas",
  "definition": "The nuclear magnetic resonance relaxation that a fluid undergoes by itself, away from any pore surface, set by molecular motion and interactions within the fluid. It depends on viscosity and temperature, with low-viscosity water relaxing in about 2 to 3 seconds and heavy oil in milliseconds. It is one of three contributions to the measured T2 of a rock, alongside surface relaxation at the grain walls and diffusion relaxation in field gradients.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/bulk-relaxation/"
}

Record 522 of 4,468 in Oil and gas terminology (MLC-0103). Request the full dataset.