INTERNATIONAL PATENT: CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司, CHINA NATIONAL LOGGING CORPORATION, 中国石油集团测井有限公司 FILES APPLICATION FOR "PERFORATOR AND PERFORATION METHOD BASED ON CABLE-FREE CONNECTION"

Posted On: 2025-07-07

GENEVA, July 7 -- CHINA NATIONAL PETROLEUM CORPORATION (9 Dongzhimen North StreetDongcheng District, Beijing 100007), 中国石油天然气集团有限公司 (中国北京市东城区东直门北大街9号), CHINA NATIONAL LOGGING CORPORATION (No. 50, Zhangbawu Road, Jinye 2nd Road, High-tech ZoneXi'an, Shaanxi 710075), 中国石油集团测井有限公司 (中国陕西省西安市高新区锦业二路丈八五路50号) filed a patent application...

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INTERNATIONAL PATENT: CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司, CHINA NATIONAL LOGGING CORPORATION, 中国石油集团测井有限公司 FILES APPLICATION FOR "PERFORATOR AND PERFORATION METHOD BASED ON CABLE-FREE CONNECTION"