Patent 7661366 was granted and assigned to Schlumberger on February, 2010 by the United States Patent and Trademark Office.
A downhole perforating device includes: a perforating gun having incorporated therein at least two shape charges; an elongated detonating cord incorporated with the perforating gun and extending along a length of the perforating gun, the detonating cord including: a flexible jacket surrounding an explosive; and a communication medium extending within or attached onto the flexible jacket layer.