Carboxymethylcellulose

{
  "id": "MLC-T-OAG-004256",
  "term": "Carboxymethylcellulose",
  "field": "Oil and gas",
  "definition": "A cellulose derivative widely used as a fluid loss control agent and viscosifier in water-based drilling fluids. It functions by increasing the viscosity of the mud and forming a thin, low-permeability filter cake on the wellbore wall, which minimizes fluid invasion into the formation. This polymer is available in different grades, with high-viscosity grades primarily for rheology control and low-viscosity grades for fluid loss control.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/carboxymethylcellulose/"
}