Alkaline

{
  "id": "MLC-T-OAG-004223",
  "term": "Alkaline",
  "field": "Oil and gas",
  "definition": "Describing a substance, particularly a drilling fluid, with a pH value greater than 7.0, indicating a basic or caustic nature. Maintaining alkalinity in drilling muds is necessary for the proper function of certain clay additives, for preventing the corrosion of steel tubulars, and for neutralizing acidic gases like carbon dioxide or hydrogen sulfide that enter the wellbore. The pH of water-based muds is typically maintained in a range of 8.5 to 12.5 through the addition of agents like caustic soda or lime.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/alkaline/"
}