Mud density

{
  "id": "MLC-T-OAG-002448",
  "term": "Mud density",
  "field": "Oil and gas",
  "definition": "The mass per unit volume of a drilling fluid, also known as mud weight. It is the primary property used to control subsurface pressures, with the hydrostatic pressure exerted by the fluid column being a direct function of its density and vertical depth. Mud density is measured on the rig using a mud balance and is typically expressed in pounds per gallon (ppg), pounds per cubic foot (lb/ft³), or specific gravity (SG).",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/mud-density/"
}