Perforating 1 : The act of making holes in pipe, cement, or formulation at desired depths (usually formed with an explosive device utilizing bullets or shaped charges). (RP 54)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}