Abstract
In Liaohe oilfield Xing 28 block before and during the alkali/polymer binary compound flooding process, there are heterogeneity contradictions on vertical and plane formation. In order to solve this contradiction, improve the utilization rate of oil displacement agent, J - F profile control agent was developed successfully, the profile control agent is not restricted by formation pH value and gel time, of good resistance to flushing, temperature tolerance and salt resistance. Through the field test, using J-F profile control agent the injection profile changed significantly and the injection pressure increased, a remarkable economic benefits and social benefits are gained.
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