Method for controlling permeability of subterranean formations

Details Method for controlling permeability of subterranean formations Method for controlling permeability of subterranean formations

E - Fixed Constructions

21

B

31/21

E21B 43/32 (2006.01) C09K 8/588 (2006.01)

Patent

CA 1092797

ABSTRACT OF THE DISCLOSURE In the recovery of hydrocarbon materials from subterrancan formations, the simultaneous production of 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.

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