A PROBE OF PROFILE MODIFICATION DEPTH BEFORE POLYMER FLOODING IN UNDERPRODUCTIVE FORMATIONS, DAQING OIL FIELD
FU Ya-guan QIAN Jie YUAN Guan-jun et al
西南石油大学学报(自然科学版) . 2007, (4): 122 -124 .  DOI: 10.3863/j.issn.1000-2634.2007.04.31