MLchartDataset catalogue

CMS

Term · Oil and gas · MLC-T-OAG-004266

A chemically modified starch, carboxymethyl starch, added to water-based muds to control filtration. It forms a thin, low-permeability filter cake on the borehole wall and cuts fluid loss to the formation, and it works in freshwater and brine systems. It holds up to roughly 120 degrees Celsius (250 degrees Fahrenheit), beyond which it degrades and other fluid-loss polymers are used.

Table 1. Record
IdentifierMLC-T-OAG-004266
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-004266",
  "term": "CMS",
  "field": "Oil and gas",
  "definition": "A chemically modified starch, carboxymethyl starch, added to water-based muds to control filtration. It forms a thin, low-permeability filter cake on the borehole wall and cuts fluid loss to the formation, and it works in freshwater and brine systems. It holds up to roughly 120 degrees Celsius (250 degrees Fahrenheit), beyond which it degrades and other fluid-loss polymers are used.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/cms/"
}

Record 772 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.