Gas Anchor 1 : A device for the bottom-hole separation of oil and gas in a pumping well. It serves to prevent GAS LOCK by minimizing gas entry into the pump. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}