MLchartDataset catalogue

Polyphosphates

Term · Oil and gas · MLC-T-OAG-002857

A class of chemical compounds used as deflocculants and thinners in freshwater-based drilling fluids to control viscosity and gel strengths. They function by adsorbing onto clay particles, increasing their negative charge and causing them to repel one another, which breaks up aggregated clay structures. Their effectiveness diminishes at temperatures above about 150°F (65°C) due to thermal reversion to orthophosphates, which can cause flocculation.

Table 1. Record
IdentifierMLC-T-OAG-002857
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-002857",
  "term": "Polyphosphates",
  "field": "Oil and gas",
  "definition": "A class of chemical compounds used as deflocculants and thinners in freshwater-based drilling fluids to control viscosity and gel strengths. They function by adsorbing onto clay particles, increasing their negative charge and causing them to repel one another, which breaks up aggregated clay structures. Their effectiveness diminishes at temperatures above about 150°F (65°C) due to thermal reversion to orthophosphates, which can cause flocculation.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/polyphosphates/"
}

Record 3,044 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.