MLchartDataset catalogue

Calcium sulfate

Term · Oil and gas · MLC-T-OAG-000524

A mineral, CaSO4, commonly found in formations as gypsum (hydrated) or anhydrite (anhydrous), which can contaminate drilling fluids. It is also used as an additive in some drilling fluid formulations, particularly in gypsum muds, to provide a controlled source of calcium ions for shale inhibition. Its solubility in water is relatively low.

Table 1. Record
IdentifierMLC-T-OAG-000524
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-000524",
  "term": "Calcium sulfate",
  "field": "Oil and gas",
  "definition": "A mineral, CaSO4, commonly found in formations as gypsum (hydrated) or anhydrite (anhydrous), which can contaminate drilling fluids. It is also used as an additive in some drilling fluid formulations, particularly in gypsum muds, to provide a controlled source of calcium ions for shale inhibition. Its solubility in water is relatively low.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/calcium-sulfate/"
}

Record 564 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.