US Patent Issued to CHENGDU ROCK PETROLEUM on Nov. 11 for "Integrated selective-firing detonator special for oil and gas wells" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,343, issued on Nov. 11, was assigned to CHENGDU ROCK PETROLEUM Co. LTD (Chengdu, China).

"Integrated selective-firing detonator special for oil and gas wells" was invented by Tianming Ma (Sichuan, China), Wanmeng Ren (Sichuan, China) and Zhengxu Zhang (Sichuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses an integrated selective-firing detonator special for oil and gas wells, including an integrated selective-firing detonator body and a detonation transmission device for receiving and transmitting external detonation signals to control selective firing of perforating bullets. The integration of the detonation transmis...