MLchartDataset catalogue

Sodium phosphate

Term · Oil and gas · MLC-T-OAG-003493

A class of chemical compounds used as deflocculants or thinners in freshwater drilling fluids to control rheology. These additives, including sodium acid pyrophosphate (SAPP) and tetrasodium pyrophosphate (TSPP), reduce viscosity and gel strength by dispersing clay particles. Phosphate thinners are most effective in low-calcium muds and tend to lose their effectiveness at temperatures above approximately 200°F (93°C).

Table 1. Record
IdentifierMLC-T-OAG-003493
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-003493",
  "term": "Sodium phosphate",
  "field": "Oil and gas",
  "definition": "A class of chemical compounds used as deflocculants or thinners in freshwater drilling fluids to control rheology. These additives, including sodium acid pyrophosphate (SAPP) and tetrasodium pyrophosphate (TSPP), reduce viscosity and gel strength by dispersing clay particles. Phosphate thinners are most effective in low-calcium muds and tend to lose their effectiveness at temperatures above approximately 200°F (93°C).",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/sodium-phosphate/"
}

Record 3,706 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.