MLchartDataset catalogue

Formation factor

Term · Oil and gas · MLC-T-OAG-001536

The ratio of the resistivity of a water-saturated rock to the resistivity of the water itself, at the same temperature. This dimensionless parameter, denoted as F, is primarily dependent on the rock's porosity and tortuosity, and it is used in Archie's equation to calculate water saturation in hydrocarbon-bearing zones. It is a fundamental property for electrical log interpretation.

Table 1. Record
IdentifierMLC-T-OAG-001536
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-001536",
  "term": "Formation factor",
  "field": "Oil and gas",
  "definition": "The ratio of the resistivity of a water-saturated rock to the resistivity of the water itself, at the same temperature. This dimensionless parameter, denoted as F, is primarily dependent on the rock's porosity and tortuosity, and it is used in Archie's equation to calculate water saturation in hydrocarbon-bearing zones. It is a fundamental property for electrical log interpretation.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/formation-factor/"
}

Record 1,655 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.