Differential sticking

{
  "id": "MLC-T-OAG-001074",
  "term": "Differential sticking",
  "field": "Oil and gas",
  "definition": "The immobilization of the drill string against the wellbore wall when a section of pipe contacts a permeable formation under a higher wellbore pressure. This phenomenon occurs when the drilling fluid's hydrostatic pressure exceeds the formation's pore pressure, creating a force that holds the pipe in place. It is a common drilling problem that can lead to costly delays and equipment damage.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/differential-sticking/"
}