Prehydrate

{
  "id": "MLC-T-OAG-002905",
  "term": "Prehydrate",
  "field": "Oil and gas",
  "definition": "To mix bentonite or other polymers with fresh water to allow them to fully swell and yield before being added to a drilling fluid system with a high salt concentration. This process is necessary because high salinity inhibits the hydration and dispersion of these additives, reducing their effectiveness as viscosifiers or fluid-loss control agents. The prehydrated slurry is then added to the active mud system as a concentrated liquid.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/prehydrate/"
}