The pressure in a well at a point opposite the production formation, usually recorded by a bottom hole pressure instrument popularly called a bomb. The bomb houses a precision gage and is usually lowered on a wireline. (See: Bomb.) (WLOP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}