Solution of Optimal Injection Strategies for Polymer Flooding Based on SWIFT Method

Polymer flooding is an important technique for enhancing oil recovery.So it is of great significance to study the optimal injection strategy.Based on the one-dimensional core experiment model,the paper chooses the performance index of the optimal problem as the maximal profit of polymer flooding.For the situation of containing the control restriction,it gains the optimal injection strategies for the cases of simple plug and double plugs by using SWIFT method.Finally,the results show that the method is feasible to solve the problem.