MLchartDataset catalogue

Spontaneous potential

Term · Oil and gas · MLC-T-OAG-003548

A naturally occurring electrical potential difference measured in a borehole between an electrode in the drilling fluid and a reference electrode at the surface. This potential arises primarily from electrochemical reactions between formation fluids and the drilling mud, and electrokinetic effects. The spontaneous potential log is used to identify permeable formations and estimate formation water salinity.

Table 1. Record
IdentifierMLC-T-OAG-003548
FieldOil and gas
SubjectGeophysics
Record as JSON 
{
  "id": "MLC-T-OAG-003548",
  "term": "Spontaneous potential",
  "field": "Oil and gas",
  "definition": "A naturally occurring electrical potential difference measured in a borehole between an electrode in the drilling fluid and a reference electrode at the surface. This potential arises primarily from electrochemical reactions between formation fluids and the drilling mud, and electrokinetic effects. The spontaneous potential log is used to identify permeable formations and estimate formation water salinity.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/spontaneous-potential/"
}

Record 3,792 of 4,499 in Oil and gas terminology (MLC-0103). Request the full dataset.