Caliper Survey (Log) : A well log which measures hole diameter. Also called "section gauge" logs which are made from tools with many "fingers" used to measure the corrosion of casing and tubing. (Bul 10C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}