Buffer

{
  "id": "MLC-T-OAG-004246",
  "term": "Buffer",
  "field": "Oil and gas",
  "definition": "A chemical additive or system of additives that resists changes in the pH of a drilling fluid when an acid or a base is introduced. Buffers work by reacting with added hydrogen or hydroxide ions, thereby maintaining a relatively stable pH environment which is necessary for the performance of other mud additives and for corrosion control. Common buffering systems in water-based muds include the carbonate/bicarbonate system, often managed with additions of lime or caustic soda.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/buffer/"
}