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This document presents equations to calculate perforation damage skin as a function of underbalance pressure for oil wells in consolidated, non-sanding formations. The equations are derived from laboratory perforation/flow experiments and consider factors like reservoir porosity, permeability, and perforation tunnel diameter. Larger explosive charges and lower underbalances are found to increase perforation damage. A minimum required underbalance to achieve clean perforations without damage is estimated. Th

Author

Erick Javier Acosta Perez

Language

EN