ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,803, issued on Nov. 18, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Intelligent switching in downhole tools" was invented by Andrew Prisbell (Sugar Land, Texas), Todd Busch (Alvin, Texas) and Atsushi Nakano (Newcastle, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A perforation tool is described herein. The perforation tool has a charge unit comprising a shaped charge; an initiator attached adjacent to the charge unit and comprising a detonator disposed to energize the shaped charge; and a switch attached adjacent to the charge unit and disposed to apply a voltage to the detonator, the switch comprising a processing un...