| 摘要 |
<p>Treatment (P1) of produced water obtained from an enhanced oil recovery process from a reservoir, where the water contains at least one water soluble polymer, involves injecting an oxidizing agent into produced water in a quantity such that the viscosity of water is reduced to less than 2 cps in a short period of less than 5 hours from the injection of the oxidizing agent; and then injecting a reducing agent in the necessary quantity to neutralize all the resulting excess oxidizing agent. An independent claim is included for an improved enhanced oil recovery process involving injecting into a reservoir a solution of water and water-soluble polymer, where the water used is produced water treated according to the process (P1).</p> |
