Deep Penetrating Charge 2 : A perforating charge with a liner shape designed to create a long penetration into the formation, but a smaller entrance hole in the pipe. See also: Big Hole Charge
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}