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Title: Method for controlling permeability of subterranean formations

Patent ·
OSTI ID:5778680

In the recovery of hydrocarbon materials from subterranean formations, the simultaneous production or loss of other fluids such as water is inhibited by the selective introduction into the subterranean porous structure of discrete spheroidal microgels of a water-swollen or water-swellable, crosslinked polymer such as crosslinked polyacrylamide.

Assignee:
Dow Chemical Co The
Patent Number(s):
US 4182417
OSTI ID:
5778680
Resource Relation:
Patent File Date: Filed date 8 Jul 1977; Other Information: PAT-APPL-813903
Country of Publication:
United States
Language:
English