Drawdown 06 : The difference between the static and the flowing bottom-hole ressures. The distance between the static level and the pumping level of the fluid in the annulus of a pumping well. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}