| http://www.w3.org/ns/prov#value | - The sweep efficiency of a steam flooding process is improved by injecting steam into the lower portion of the formation through an injection well until steam channeling or steam overriding has occurred, after which steam injection is terminated and an oxygen-containing gas such as air, oxygen-enriched air, or oxygen is injected into the formation to oxidize the residual oil in the portion of the f
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