MLchartDataset catalogue

Tight

Term · Oil and gas · MLC-T-OAG-003840

Describing a reservoir rock with very low permeability, meaning fluids cannot flow through it easily under normal pressure gradients. Such formations, like tight gas sands or shales, hold substantial hydrocarbon resources but require stimulation techniques to produce economically. A common threshold for a tight gas sand is a permeability of less than 0.1 millidarcies (mD).

Table 1. Record
IdentifierMLC-T-OAG-003840
FieldOil and gas
SubjectGeology
Record as JSON 
{
  "id": "MLC-T-OAG-003840",
  "term": "Tight",
  "field": "Oil and gas",
  "definition": "Describing a reservoir rock with very low permeability, meaning fluids cannot flow through it easily under normal pressure gradients. Such formations, like tight gas sands or shales, hold substantial hydrocarbon resources but require stimulation techniques to produce economically. A common threshold for a tight gas sand is a permeability of less than 0.1 millidarcies (mD).",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/tight/"
}

Record 4,076 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.