Tag Archives: displacing

Oil recovery method using black paper-making liquor as oil displacing alkali

Application Number  00129382 Application Date  2000.12.05 Publication Number  1297100 Publication Date  2001.05.30 Priority Information     International Classification  E21B43/22   Applicant(s) Name  Petroleum Univ. (Huadong)   Address     Inventor(s) Name  Zhao Fulin;Gao Xiaoyong;Chang Guicai   Patent Agency Code  11013 Patent Agent  zhao dongye AbstractAn oil recovery method using black paper-making liquor as the alkaliā€¦ Read More »