Bullet Perforating
Bullet Perforating :
(n.) Perforating. An early perforating method that used a hardened steel bullet or projectile, propelled by an explosive charge, to create aperforation tunnel. This method creates a low-permeability crushed zone and leaves the bullet and associated debris jammed at the end of the tunnel. Jet perforating?is now the preferred method. See: perforate
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