MLchartDataset catalogue

Isolated porosity

Term · Oil and gas · MLC-T-OAG-002048

The part of a rock's pore volume made up of pores that are sealed off from other pores and from the wellbore, so the fluid in them cannot flow or be produced. It still counts toward total porosity measured by density or NMR logs, but not toward effective porosity, so it is estimated as the difference between the total and the connected pore volume. Vuggy carbonates with unconnected vugs and rocks with cemented pore throats are typical hosts.

Table 1. Record
IdentifierMLC-T-OAG-002048
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-002048",
  "term": "Isolated porosity",
  "field": "Oil and gas",
  "definition": "The part of a rock's pore volume made up of pores that are sealed off from other pores and from the wellbore, so the fluid in them cannot flow or be produced. It still counts toward total porosity measured by density or NMR logs, but not toward effective porosity, so it is estimated as the difference between the total and the connected pore volume. Vuggy carbonates with unconnected vugs and rocks with cemented pore throats are typical hosts.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/isolated-porosity/"
}

Record 2,193 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.