Static spontaneous potential

{
  "id": "MLC-T-OAG-003596",
  "term": "Static spontaneous potential",
  "field": "Oil and gas",
  "definition": "The maximum potential difference that can develop between the formation water and the mud filtrate in a permeable bed, measured by the spontaneous potential log. This potential arises from the electrochemical and electrokinetic properties of the fluids and rock. It is used to determine formation water salinity and identify permeable zones within a wellbore.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/static-spontaneous-potential/"
}