Perforating-When Failure Is the Objective

摘要

Operators routinely perforate with the pressure in the wellbore lower than that in the reservoir. This static underbalaneed condition promotes the removal of damaged rock and debris. Researchers have found that this technique often results in disappointing well performance because of inadequate cleanup, Recent studies have shed more light on the transient effects that oocur during shaped charge detonation. Engineers are exploiting dynamic underbaiance to create cleaner perforation tunnels. Wells perforated using these new techniques typically perform better than those perforated using traditional methods.