Datum Level : (n.) Well Testing. The depth to which pressures are corrected to adjust for differences in elevations at which pressure measurements are made in different wells or at different times. See: Datum
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}