Necessity and feasibility of improving the residual resistance factor of polymer flooding in heavy oil reservoirs

Leiting Shi1, Zhongbin Ye1, Zhuo Zhang1, Changjiang Zhou1, Shengli Zhu1, Zhidong Guo1
1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

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