HGS

{
  "id": "MLC-T-OAG-001816",
  "term": "HGS",
  "field": "Oil and gas",
  "definition": "An abbreviation for high-gravity solids, the dense weighting materials added to a drilling fluid to raise its density, chiefly barite (specific gravity about 4.2) and hematite (about 5). They are distinguished from low-gravity solids, meaning clays and drilled cuttings with a specific gravity near 2.6. Engineers separate the two groups from retort solids and mud weight by mass balance, and a lower low-gravity share gives a lower plastic viscosity at a given density.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/hgs/"
}