MLchartDataset catalogue

Secondary porosity index

Term · Oil and gas · MLC-T-OAG-003298

A calculated value that quantifies the amount of porosity created after the original deposition of the rock, such as fractures, vugs, or dissolution features. It is derived by comparing the total porosity measured from a density log with the intergranular porosity estimated from a sonic log. A high secondary porosity index often indicates improved reservoir quality due to enhanced fluid flow paths.

Table 1. Record
IdentifierMLC-T-OAG-003298
FieldOil and gas
SubjectFormation Evaluation
Record as JSON
{
  "id": "MLC-T-OAG-003298",
  "term": "Secondary porosity index",
  "field": "Oil and gas",
  "definition": "A calculated value that quantifies the amount of porosity created after the original deposition of the rock, such as fractures, vugs, or dissolution features. It is derived by comparing the total porosity measured from a density log with the intergranular porosity estimated from a sonic log. A high secondary porosity index often indicates improved reservoir quality due to enhanced fluid flow paths.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/secondary-porosity-index/"
}

Record 3,503 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.