INTERNATIONAL PATENT: CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司, CHINA NATIONAL OIL AND GAS EXPLORATION AND DEVELOPMENT COMPANY, 中国石油国际勘探开发有限公司 FILES APPLICATION FOR "CONNECTIVITY EVALUATION METHOD AND APPARATUS FOR ROCK PORE CHANNEL AND SERVER AND MEDIUM"

GENEVA, Nov. 10 -- CHINA NATIONAL PETROLEUM CORPORATION (9 Dongzhimen North Street,Dongcheng 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 OIL AND GAS EXPLORATION AND DEVELOPMENT COMPANY (Room 369, Building 2, East Ring Road, Yanqing Garden, Zhongguancun,Yanqing District, Beijing 102101), 中国石油国际勘探开发有限公司 (中国北京市延庆区中关村延庆园东...