Weight of fluid

Weight of fluid (drilling mud) in the hole per gallon. Measured in pounds per gallon. Straight water is 8.3 lbs. Per gallon. Salt water is heavier. Drilling fluid often has additives or “weighted material” such as barite (barium sulfate) added to the drilling mud to increase its unit weight per gallon to better handle pressurized formations you are drilling through.

« Back to Glossary Index