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 alkali for displacing oil features that a multi-component oil displacing system is prepared from said black paper-making liquor, surfactant and polymer, the formulation of black liquor system is optimized by used of quasi-three-component phase chart, and a calculation equation is used to find the its use amount, resulting in higher yield of crude.