| 摘要 |
PURPOSE: A sequential polymer injection treatment method for controlling stratum water production is provided to maintain the efficiency of the treatment method. CONSTITUTION: A sequential polymer injection treatment method for controlling stratum water production is as follows. Polymer is injected oil and stratum water into a stratum. A polymer layer is formed in the cavity of the stratum. The polymer is absorbed in the stratum through magnetic force. Polymers having different poles form multilayered structure. The molecular weight and the concentration of the polymer are controlled gradually. |
