(n.) Drilling Fluids. A log that uses the variations in amplitude of an acoustic signal traveling down the casing wall between a transmitter andreceiver to determine the quality of cement bond on the exterior casing wall. See: cement bond log
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}