Drilling Industry Glossary
hardbanding
helical buckling
helical lockup
high gravity solids
hole
hook
hook load
horizon
horizontal drilling
HSI
HTHP cake thickness
HTHP filtrate
hydrocarbons
hydrostatic pressure
High Gravity Solids
High gravity solids (HGS) are dense solids, such as barite, calcium carbonate or hematite, which are added to increase mud density, also known as weighting material. The specific gravity of water is 1.00, barite is 4.20, and hematite 5.505 g/cm3.
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