Coring 2 : The act of procuring a sample of the formation being drilled for geological information purposes. Coring is done by means of a core barrel. (Bul 10C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}