Wireline (Retrievable) Mandrel : A tubular member with an internal receiver for a wireline (retrievable) gas lift valve. The mandrel becomes an integral part of the tubing string. (GL)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}