Oil & Gas
| Fri 07 Aug 2026
Beijing, Aug. 7 -- CNPC Xibu Drilling Engineering Co Limited and China National Petroleum have sought patent for RFID Signal Anti-interference Underground Plugging System. This invention was developed by Wang Yuxin, Gu Hao, Xie Tianya, Xu Shaojun, Yi Ming, Wang Di, Meng Ying, Zhang Shengpeng, Zhu Niantao and Yang Bo.
The pate..