Patent ID: 7246548

Claim:
A perforating gun wall that withstands short, high energy pulses of an explosion originating within a loading tube comprising a plurality of explosive shaped charges, wherein the wall comprises: a. a first layer with a first impact strength sufficient to maintain the structural integrity of the gun wall without splitting due to the explosion; b. a second layer with a second impact strength sufficient to maintain the structural integrity of the gun wall without substantially splitting due to the explosion, wherein the second layer is sleeved within the first layer forming a sleeved assembly, and wherein one layer is maintained as a solid layer without holes and the other layer comprises at least one hole aligned with at least one explosive shaped charge, and wherein the first and second layers comprise a defined material property that reduces occurrences of catastrophic failure, and wherein the defined material property comprises: i. a tensile strength; ii. ductility; iii. elasticity; iv. shock absorption; v. a thermal expansion coefficient; vi. a melting temperature; vii. a vaporization temperature; and c. wherein the second layer is sleeved over a third layer and the third layer has an impact strength sufficient to maintain the structural integrity of the gun wall without substantially splitting due to the explosion.