Measurement & Testing
| Wed 12 Aug 2026
Beijing, Aug. 12 -- China Petroleum Logging Co Ltd and China National Petroleum have sought patent for Coal Rock Porosity Measuring Method. This invention was developed by He Yufei, Luo Yanying, Liu Peng, Jang Cheol Ho, Lu Jiyang, Zhang Chenjun, Miao Xiuying, Zhang Yonghao, Han Bo, Wei Bo, Li Huiying, Wu Di, Xiao Zhanshan and Li..