INTERNATIONAL PATENT: CHINA NATIONAL OFFSHORE OIL CORPORATION (CHINA) CO., LTD., 中海石油（中国）有限公司, BEIJING RESEARCH CENTER OF CNOOC (CHINA) CO., LTD., 中海石油（中国）有限公司北京研究中心 FILES APPLICATION FOR "EMERGENCY SUBSEA PIPELINE UNBLOCKING SYSTEM CAPABLE OF RAPID SEALED DOCKING"

GENEVA, May 18 -- CHINA NATIONAL OFFSHORE OIL CORPORATION (CHINA) CO., LTD. (NO.25, Chaoyangmen Beida StreetDongcheng District, Beijing 100010), 中海石油（中国）有限公司 (中国北京市东城区朝阳门北大街25号), BEIJING RESEARCH CENTER OF CNOOC (CHINA) CO., LTD. (Room 1205, Block B, CNOOC Building, No.6, Taiyanggong South StreetChaoyang District, Beijing 100028), 中海石油（中国）有限公司北京研究中心 (中国北京市朝阳区太阳&#...