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U.S. Department of Energy
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Aqueous fluid flooding method for recovering oil

Patent ·
OSTI ID:5493193
The recovery of oil from a subterranean formation by an aqueous flooding fluid is described. More particularly, the injectivity index of an injection well, through which an aqueous fluid is introduced into a formation, is maintained relatively constant during the injection of the flooding fluid. In one aspect, there is described in this method the use of a water-soluble hydrosulfite salt, e.g., sodium hydrosulfite, in the aqueous fluid entering the formation from which oil is produced. (6 claims)
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 3428120
OSTI ID:
5493193
Country of Publication:
United States
Language:
English