MLchartDataset catalogue

Total hardness test

Term · Oil and gas · MLC-T-OAG-003873

A chemical test performed on drilling fluid filtrate to determine the concentration of divalent cations, primarily calcium and magnesium ions. High hardness can cause flocculation of clays and interfere with the performance of certain mud additives. The test typically involves titration with a chelating agent like EDTA.

Table 1. Record
IdentifierMLC-T-OAG-003873
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-003873",
  "term": "Total hardness test",
  "field": "Oil and gas",
  "definition": "A chemical test performed on drilling fluid filtrate to determine the concentration of divalent cations, primarily calcium and magnesium ions. High hardness can cause flocculation of clays and interfere with the performance of certain mud additives. The test typically involves titration with a chelating agent like EDTA.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/total-hardness-test/"
}

Record 4,140 of 4,499 in Oil and gas terminology (MLC-0103). Request the full dataset.