(n.) Drilling Fluids. Abbreviation for density, pounds-per-gallon, more correctly written lbm/gal. For example, the density of water is 8. 33 ppg at 600F [160C]
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}