GENEVA, Aug. 17 -- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) (No. 66 Changjiang West Road, Huangdao DistrictQingdao, Shandong 266580), 中国石油大学(华东) (中国山东省青岛市黄岛区长江西路66号), QINGDAO UNIVERSITY OF TECHNOLOGY (No. 777 Jiangling Jiangdong Road, Huangdao DistrictQingdao, Shandong 266520), 青岛理工大学 (中国山东省青岛市黄岛区江陵江东路777号) filed a patent application (PCT/CN2024/141272) for "DELAYED-GELATION PLUGGING GEL FOR WELL CEMEN...